&EPA -United States Environmental Protection Agency Office of Research and Development Washington, DC 20460 EPA/600/R-96/023 February 1996 Gamma in Water Performance Evaluation Study A Statistical Evaluation of the November 3, 1995 Data 023RSL96 cov-023 ------- Gamma in Water Performance Evaluation Study November 3, 1995 Environmental Protection Agency National Exposure Research Laboratory Characterization Research Division Las Vegas, Nevada ------- UNITED STATES ENVIRONMENTAL PROTECTION AGENCY OFFICE OF RESEARCH AND DEVELOPMENT NATIONAL EXPOSURE RESEARCH LABORATORY CHARACTERIZATION RESEARCH DIVISION-LAS VEGAS P.O. BOX 93478 LAS VEGAS, NEVADA 89193-3478 (702/798-2100) Dear Participant, Enclosed are the results of the Analytical Sciences Branch (CRD-LV) Performance Evaluation Study for Gamma in Water; November 3, 1995. The known value for each analysis was determined by gravimetric methods, checked by chemical analyses performed by CRD-LV's Radiochemistry Laboratory, and compared to the participating laboratories' grand average. The expected precision, determined by the known value, was taken from "Table 3. Laboratory Precision: One Standard Deviation Values and Control Limits for Various Analyses", which is based on data accumulated over the years by the Performance Evaluation Program, and can be found in the Environmental Radioactivity Performance Evaluation Studies Program and Radioactive Standards Distribution Program information brochure. Please take a few minutes to review this report and the analytical data your laboratory submitted to us. If there are any apparent discrepancies, please notify us immediately. We encourage you to make use of the computer-automated data-entry system that has been in place for some time now. As the number of participants increases, and it becomes unrealistic for us to receive results by mail or FAX, the computer system will be our only avenue for accepting data. If you have any questions or comments, please send a message via the data-entry system or contact George Dilbeck at 702/798-2104 or Patricia Honsa at 702/798-2141. Sincerely, George Dilbeck Team Leader RADQA Program Enclosure ------- NOTICE This material has been funded wholly by the U.S. Environmental Protection Agency. It has been subjected to the Agency's review, and has been approved for publication as an EPA document. ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 1/37 The following pages consist of separate sections for each of the nuclides in this study with four parts per section. After the first, each part is separntpd from the next by n new png* or n thick horizontal bar. The first page of each section is a statistical summary for the nuclide and starts with a statement of the known value, the control limits, and the warning limits. The warning limits are placed at two normalized standard deviations above and below the known value and the control limits are three normalized standard deviations above and below the known value. If you keep control charts, these values will be useful for anticipating problems with the accuracy of your analytical methods. The coin shaped pie chart at the top of the summary page shows the fate of all the samples sent out in number and percentage terms. The pie chart starts at the top and rotates clockwise. The first sector represents those participants who submitted analytical results within both the warning and control limits. The next sector represents those who are in the warning region but not out of control. The third sector represents those who are out of control, but have passed the outlier test. The fourth sector represents those who have failed the outlier test. The last sector represents those participants who have failed to respond properly. This is the case if no analytical results were returned, or less than three determinations were reported, or if the results were received too late. The reeding on the edge of the coin is spaced at one percent intervals, and the sector shading becomes darker as the data reliability decreases. Sectors with zero width are not shown. The table in the center shows a number of statistical quantities calculated from the submitted data based on the mean and median values in relation to the known value, both before and after outlier removal. The lower pie chart uses the same construction as the upper chart and shows the distribution of properly submitted data in terms of deviation from the known value divided into sectors representing one, two, three, and greater than three normalized standard deviations. The second part is an alphabetical listing, in lab-code order, of submitted data and several calculated quantities. An entry that is shaded has been rejected because of one of the reasons listed above or failure of the outlier test. The fifth and sixth columns are a measure of laboratory precision. The Range analysis is a normalized value that you may use to keep precision control charts. If this value is between 2.0 and 3.0, your analytical process precision is in the warning zone; if it exceeds 3.0 it is out of control. The eighth and ninth columns are the differences from the mean of all non-outliers and from the known value, respectively. A tag symbol may appear in the last column. Each page with tags has a symbol definition summary at the bottom. If there is no tag symbol, the data is within the control limits, but it may be in the warning zone. The third part is a three-column listing of result average, tag symbol, and lab-code in average order excluding those labs not responding properly. In this order, all outliers and out-of-control results appear at the top or bottom of the list. The last part is two bar chart displays showing frequency distributions of responding participants. The first chart places the known value at the center and a bar at each 0.2 unit of expected precision. The second chart places the mean of the reported measurements at the center and a bar at each 0.2 unit of standard deviation. In both cases, a bar includes those results within 0.1 unit up to the maximum of six. Any results more than six units from the center value are shown cumulatively by a shaded bar one past the sixth unit. If the central tendency of the known value distribution falls away from the center, an error in accuracy is indicated. If the distribution is broad, poor precision is indicated. The mean value distribution is similar but uses the average and standard deviation of reported results as its basis. ------- 2/37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 The Range Analysis(R + SR) is calculated from the range, mean range and standard error of the range values. The range is the difference between the maximum and minimum results for the laboratory. The mean range is calculated by multiplying the expected precision by 1.693(for three results). The standard error of the range is calculated by multiplying the mean range by 2.575(for three results), subtracting the mean range from this product, and dividing the result by 3. If the range is greater than the mean range, then the range analysis is calculated by subtracting the mean range from the range, dividing the result by the standard error of the range and adding 1. If the mean range is greater than or equal to the range, then the range analysis is calculated by dividing the range by the mean range. The normalized deviation of the mean'from the grand average is calculated from the deviation of the mean from the grand average and the standard error of the mean values. The deviation of the mean from the grand average is calculated by subtracting the grand average from the average of the laboratory's three results. The standard error of the mean is calculated by dividing the expected precision by the square root of 3(the number of results). The normalized deviation of the mean from the grand average is calculated by dividing the deviation of the mean from the grand average by the standard error of the mean. The normalized deviation of the mean from the known value is calculated from the deviation of the mean from the known value and the standard error of the mean values. The deviation of the mean from the known value is calculated by subtracting the known value from the average of the laboratory's three results. The standard error of the mean is calculated by dividing the expected precision by the square root of 3(the number of results). The normalized deviation of the mean from the known value is calculated by dividing the deviation of the mean from the known value by the standard error of the mean. A complete explanation of the statistical calculations involved in the report may be found in the Environmental Radioactivity Performance Evaluation Studies Program information brochure [Draft Revision of EPA-600/4-81-004], available from Patricia Honsa, CRD-LV, 702/798-2141. ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 3/37 Cobalt-60 Statistical Summary 193 Participants The known value of this nuclide is 60.0 pCi/1 with an expected precision of 5.0; the control limits are 51.3 to 68.7; the warning regions are 51.3 to 54.2 and 65.8 to 68.7 33(17.1 %) Failed to respond . 4(2.1 %) Outliers-' 8(4.1 %) Out of control' but not an outlier Statistic 136(70.5 %) Within all limits Respondents *- 12(6.2 %) In warning zone but within control Non-outliers Mean Std. Dev. Variance %Coef. ofVar. % deviation of mean from known value Norm. dev. of mean from known value Median % deviation of median from known value Norm. dev. of median from known value 65.31 47.67 2272.59 72.99 8.85 0.11 59.67 -0.56 -0.01 Grand Avg 59.65 4.05 16.44 6.80 -0.58 -0.09 59.67 -0.56 -0.08 12(7.5 %) More than 3 norm. S.D. 12(7.5 %) Between 2 and 3 norm. S.D 2(57.5 %) Within 1 norm. S.D. of known value 44(27.5 %) Between 1 and 2 norm. S.D. ------- 4/37 CRD-LV Performance Evaluation : Gamma in Water, 3 -Nov-1995 Cobalt-60 ] Lab A AE AF AH AI AJ AK AL AN AP AU AW AY AZ BA BB BC BG BH BI BK BL BM BN BO BW C CA CC CE CG CJ CK CM CO CP CQ CS CX D DD DE DG DH DL = 0 = Res. 1 54.0 61.0 61.0 57.0 61.0 62.0 52.0 63.0 61.0 58.0 58.0 65.0 67.0 68.0 61.0 57.0 90.0 62.0 64.0 63.0 58.0 60.0 58.0 56.0 62.0 58.0 64.0 51.0 64.0 61.0 51.0 60.0 71.0 58.0 ; - '' 60.0 57.0 63.0 61.0 63.0 Res. 2 52.0 62.0 59.0 53.0 58.0 58.0 52.0 62.0 60.0 58.0 57.0 64.0 52.0 67.0 61.0 56.0 46.0 63.0 t .... .. .. ' .. 62.0 58.0 61.0 57.0 60.0 55.0 59.0 59.0 63.0 58.0 62.0 62.0 60.0 66.0 72.0 . 61.0 58.0 58.0 63.0 62.0 62.0 Res. 3 50.0 61.0 59.0 55.0 60.0 59.0 55.0 57.0 61.0 58.0 59.0 66.0 52.0 63.0 61.0 58.0 72.0 61.0 63.0 59.0 62.0 59.0 55.0 56.0 65.0 59.0 62.0 65.0 62.0 56.0 56.0 60.0 73.0 61.0 59.0 58.0 62.0 60.0 61.0 No data submitted Insufficient data X s Exper. Sigma 2.00 0.58 1.15 2.00 1.53 2.08 1.73 3.21 0.58 0.00 1.00 1.00 8.66 2.65 0.00 1.00 22.12 1.00 1.00 2.65 2.08 1.53 2.52 0.58 3.00 0.58 1.00 7.00 1.15 3.21 4.51 3.46 1.00 1.73 , - , , 1.00 0.58 0.58 1.00 1.00 Rng anal Normalized deviation (R + SR) Average (grand-avg) (known) Tag 0.473 0.118 0.236 0.473 0.354 0.473 0.354 0.709 0.118 0.000 0.236 0.236 2.470 0.591 0.000 0.236 8.996 0.236 0.236 0.591 0.473 0.354 0.591 0.118 0.709 0.118 0.236 2.245 0.236 0.709 1.120 0.709 0.236 0.354 0.236 0.118 0.118 0.236 0.236 52.00 61.33 59.67 55.00 59.67 59.67 53.00 60.67 60.67 58.00 58.00 65.00 57.00 66.00 61.00 57.00 69.33 62.00 + , 63.00 60.00 60.33 58.67 57.67 55.67 62.00 58.67 63.00 58.00 62.67 59.67 55.67 62.00 72.00 60.00 59.00 57.67 62.67 61.00 62.00 TAG SYMBOLS Determined to be an outlier -2.65 0.58 0.01 -1.61 0.01 0.01 -2.30 0.35 0.35 -0.57 -0.57 1.85 -0.92 2.20 0.47 -0.92 3.35 0.81 1.16 0.12 0.24 -0.34 -0.69 -1.38 0.81 -0.34 1.16 -0.57 1.05 0.01 -1.38 0.81 4.28 0.12 -0.23 -0.69 1.05 0.47 0.81 ft s Above li = Below -2.77 0.46 -0.12 -1.73 *'* -0.12 -0.12 -2.42 0.23 0.23 -0.69 -0.69 1.73 -1.04 2.08 0.35 -1.04 3.23 ft 0.69 - , » 1.04 0.00 0.12 -0.46 -0.81 ' , " " * -1.50 0.69 -0.46 1.04 , , , , -0.69 0.92 -0.12 * -1.50 0.69 4.16 ft 0.00 - » > -0.35 -0.81 0.92 0.35 0.69 control limit control limit ------- CRD-LV Performance Cobalt-60 Lab DM DO DR DT DZ E EA EB EL EW EX EZ FJ FK FL FU FZ GE GI GL GQ m HJ HK HL HP HX I 1C J JE JG JI JS JY K KH KL KX L LE LF LR LT M Res. 1 54.0 59.0 - 56.0 58.0 58.0 60.0 55.0 58.0 "-'-,v^,*7;":? 66.0 56.0 61.0 N 62.0 53.0 63.0 53.0 59.0 55.0 69.0 57.0 61.0 61.0 59.0 59.0 54.0 59.0 60.0 60.0 62.0 61.0 69.0 54.0 67.0 55.0 56.0 65.0 61.0 60.0 64.0 60.0 59.0 Res. 2 55.0 64.0 ^ 57.0 62.0 58.0 61.0 55.0 58.0 ^ \, ^" >-' 67.0 59.0 62.0 67.0 57.0 58.0 57.0 59.0 55.0 67.0 63.0 59.0 61.0 57.0 57.0 62.0 58.0 60.0 61.0 57.0 - 62.0 67.0 55.0 59.0 60.0 61.0 64.0 59.0 53.0 60.0 59.0 59.0 Res. 3 55.0 65.0 60.0 , 59.0 59.0 60.0 56.0 61.0 71.0 62.0 61.0 61.0 54.0 58.0 57.0 58.0 58.0 72.0 64.0 59.0 61.0 57.0 55.0 65.0 59.0 59.0 60.0 60.0 63.0 60.0 56.0 67.0 58.0 58.0 63.0 56.0 59.0 59.0 62.0 55.0 s No data submitted 0 s Insufficient data x = Evaluation Exper. . Gamma in Water, 3-Nov-1995 Rng anal Sigma (R + SR) Average 0.58 3.21 - 2.08 2.08 0.58 0.58 0.58 1.73 2.65 3.00 0.58 3.21 2.08 2.89 2.31 0.58 1.73 2.52 3.79 1.15 0.00 1.15 2.00 5.69 0.58 0.58 0.58 2.52 1.00 4.73 1.00 4.62 2.52 2.52 1.00 2.52 3.79 2.65 1.53 2.31 0.118 0.709 ,,s 0.473 0.473 0.118 0.118 0.118 0.354 0.591 0.709 0.118 0.709 0.473 0.591 0.473 0.118 0.354 0.591 0.827 0.236 0.000 0.236 0.473 1.570 0.118 0.118 0.118 0.591 0.236 1.120 0.236 0.945 0.591 0.591 0.236 0.591 0.827 0.591 0.354 0.473 54.67 62.67 X N \ 57.67 59.67 58.33 60.33 55.33 59.00 68.00 59.00 61.33 63.33 54.67 59.67 55.67 58.67 56.00 69.33 61.33 59.67 61.00 57.67 57.00 60.33 58.67 59.67 60.33 59.67 62.00 65.33 55.00 64.33 57.67 58.33 64.00 58.67 57.33 61.00 60.33 57.67 TAG SYMBOLS Determined to be an outlier 5/37 1 Normalized deviation (grand-avg) (known) Tag -1.73 1.05 -0.69 0.01 -0.46 0.24 -1.50 -0.23 2.89 -0.23 0.58 1.28 -1.73 0.01 -1.38 -0.34 -1.26 3.35 0.58 0.01 0.47 -0.69 -0.92 0.24 -0.34 0.01 0.24 0.01 0.81 1.97 -1.61 1.62 -0.69 -0.46 1.51 -0.34 -0.80 0.47 0.24 -0.69 IT = Above Ji = Below -1.85 0.92 -0.81 -0.12 -0.58 0.12 -1.62 -0.35 ' \ 2.77 -0.35 0.46 ... ... ..... _ ...... ^ 1.15 :' l i ' .ft-;'* -1.85 -0.12 -1.50 -0.46 -1.39 3.23 11 0.46 -0.12 0.35 -0.81 -1.04 0.12 -0.46 -0.12 0.12 -0.12 0.69 1.85 -1.73 1.50 -0.81 -0.58 1.39 -0.46 -0.92 0.35 0.12 -0.81 control limit control limit ' ------- 6/37 CRD-LV Performance Evaluation Gamma in Water, 3-Nov-1995 Cobalt-60 1 Lab MA ML MP MQ MV MX MY N NH NJ NK NO NF* NZ O OA OB ok OL OM OZ P PB PE PI PM PQ PU PV PW Q QJ QM QP QT QU QW QX QZ R RF RH RL RO RR Res. 1 61.0 63.0 58.0 66.0 .. V.- / 62.0 56.0 54.0 62.0 64.0 60.0 47.0 72.0 64.0 50.0 70.0 59.0 67.0 59.0 67.0 57.0 58.0 54.0 59.0 64.0 54.0 61.0 61.0 57.0 60.0 61.0 55.0 50.0 59.0 59.0 Res. 2 61.0 62.0 54.0 63.0 67.0 56.0 56.0 63.0 64.0 59.0 47.0 73.0 65.0 , \ 49.0 70.0 58.0 63.0 59.0 60.0 60.0 59.0 56.0 60.0 59.0 57.0 63.0 61.0 58.0 60.0 59.0 57.0 52.0 63.0 59.0 Res. 3 60.0 62.0 62.0 57.0 65.0 56.0 59.0 65.0 63.0 58.0 47.0 65.0 66.0 50.0 60.0 58.0 61.0 56.0 68.0 61.0 57.0 56.0 59.0 57.0 58.0 64.0 63.0 60.0 58.0 61.0 56.0 53.0 59.0 60.0 s No data submitted 0 & Tn.sttfficient data x = Exper. Rng anal Normalized deviation Sigma (R + SR) Average (grand- avg) (known) Tag 0.58 0.58 4.00 4.58 2.52 0.00 2.52 1.53 0.58 1.00 0.00 4.36 1.00 0.58 5.77 0.58 3.06 1.73 4.36 2.08 1.00 1.15 0.58 3.61 2.08 1.53 1.15 1.53 1.15 1.15 1.00 . 1.53 2.31 0.58 0.118 0.118 0.945 1.120 0.591 0.000 0.591 0.354 0.118 0.236 0.000 0.945 0.236 0.118 1.345 0.118 0.709 0.354 0.945 0.473 0.236 0.236 0.118 0.827 0.473 0.354 0.236 0.354 0.236 0.236 0.236 0.354 0.473 0.118 60.67 62.33 58.00 62.00 64.67 56.00 56.33 5 63.33 63.67 59.00 47.00 70.00 '65.00 ; i 49.67 66.67 58.33 63.67 58.00 65.00 59.33 58.00 55.33 59.33 60.00 56.33 62.67 61.67 58.33 59.33 60.33 56.00 51.67 60.33 59.33 TAG SYMBOLS Determined to be an outlier 0.35 0.93 -0.57 0.81 1.74 -1.26 -1.15 1.28 1.39 -0.23 -4.38 3.59 1.85 -3.46 2.43 -0.46 1.39 -0.57 1.85 -0.11 -0.57 -1.50 -0.11 0.12 -1.15 1.05 0.70 -0.46 -0.11 0.24 -1.26 -2.77 0.24 -0.11 IT s Above U s Below 0.23 .-r- .-, ,' 0.81 -0.69 0.69 1.62 -1.39 -1.27 1.15 » 1.27 -0.35 -4.50 II 3.46 IT 1.73 -3.58 H 2.31 -0.58 1.27 -0.69 1.73 -0.23 -0.69 -1.62 -0.23 * 0.00 -1.27 0.92 0.58 -0.58 -0.23 0.12 -1.39 -2.89 0.12 -0.23 control limit control limit i -y ------- CRD-LV Performance Cobalt-60 Lab Res. 1 RU RV RX RZ S sc SD SF SI SM SN SR ss ST sv sx sz T TB TC TD TH TI TL TO TQ TR TS U UE UM UN UP UR UT UW UX UY VA VcT VE VG VH VI VM = 0 s 57.0 55.0 61.0 60.0 59.0 54.0 55.0 60.0 61.0 59.0 56.0 60.0 62.0 63.0 62.0 60.0 56.0 50.0 61.0 59.0 60.0 54.0 58.0 68.0 62.0 -. . -. --X;-.-. v, s-. -. 62.0 60.0 84.0 56.0 61.0 55.0 58.0 53.0 ," ::r -:'. . ' 54.0 52.0 62.0 60.0 Res. 2 59.0 60.0 62.0 64.0 59.0 56.0 55.0 56.0 62.0 63.0 56.0 60.0 61.0 63.0 59.0 59.0 52.0 56.0 61.0 60.0 58.0 51.0 52.0 70.0 63.0 65.0 61.0 89>0: 56.0 60.0 53.0 64.0 55.0 58.0 52.0 59.0 67.0 Res. 3 61.0 60.0 59.0 63.0 59.0 53.0 53.0 57.0 60.0 64.0 52.0 59.0 61.0 66.0 62.0 60.0 58.0 53.0 59.0 60.0 59.0 54.0 57.0 64.0 s 64.0 63.0 59.0 8^0 56.0 62.0 54.0 61.0 52.0 55.0 53.0 61.0 65.0 No data submitted Insufficient data x = Evaluation Exper. Sigma 2.00 2.89 1.53 2.08 0.00 1.53 1.15 2.08 1.00 2.65 2.31 0.58 0.58 1.73 1.73 0.58 3.06 3.00 1.15 0.58 1.00 1.73 . ' " -. ' : 3.21 3.06 1.00 1.53 1.00 .:;.'' ;.'.&21;.'V- 0.00 1.00 1.00 3.00 1.53 ... ,.- 2.08 0.58 1.53 3.61 : Gamma in Water, 3-Nov-1995 7/37 1 Rng anal Normalized deviation (R + SR) Average (grand-avg) (known) Tag 0.473 0.591 0.354 0.473 0.000 0.354 0.236 0.473 0.236 0.591 0.473 0.118 0.118 0.354 0.354 0.118 0.709 0.709 0.236 0.118 0.236 0.354 0.709 0.709 0.236 0.354 0.236 0.709 0.000 0.236 0.236 0.709 0.354 0.473 0.118 0.354 0.827 59.00 58.33 60.67 62.33 59.00 54.33 54.33 57.67 61.00 62.00 54.67 59.67 61.33 * x-- 64.00 61.00 59.67 55.33 \ 53.00 60.33 59.67 59.00 53.00 55.67 67.33 63.00 63.33 60.00 85.33 56.00 61.00 54.00 61.00 53.33 55.67 52.33 60.67 64.00 TAG SYMBOLS Determined to be an outlier -0.23 -0.46 0.35 0.93 ' -0.23 -1.84 -1.84 -0.69 0.47 0.81 -1.73 0.01 0.58 \ 1.51 0.47 0.01 -1.50 -2.30 0.24 0.01 -0.23 -2.30 -1.38 2.66 1.16 1.28 0.12 8.90 -1.26 0.47 -1.96 0.47 -2.19 -1.38 -2.53 0.35 1.51 1T s Above U = Below -0.35 -0.58 0.23 0.81 -0.35 -1.96 -1.96 -0.81 0.35 0.69 -1.85 -0.12 0.46 x ^ '"' v 1.39 0.35 -0.12 -1.62 -2.42 0.12 -0.12 -0.35 -2.42 ' ': ' -1.50 2.54 - * 1.04 1.15 0.00 8.78 x s -1.39 0.35 -2.08 0.35 -2.31 -1.50 * -2.66 0.23 1.39 control limit control limit ------- 8 / 37 CRD-LV Performance Evaluation Cobalt-60 Lab Res. 1 Res. 2 VO 57.0 65.0 VB" - '' '' - '- VS 65.0 61.0 VT W 61.0 58.0 WD 60.0 59.0 WF 64.0 64.0 WI WJ 627.0 617.0 WK 51.0 55.0 WL 440.0 440.0 WO 9LO 91,0 X 68.0 70.0 Exper. Res. 3 Sigma 67.0 5.29 63.0 2.00 60.0 1.53 59.0 0.58 64.0 0.00 534.0 8.54 33.0 11.72 440.0 0.00 97.0 3.46 70.0 1.15 : Gamma Rnganal (R + SR) 1.345 0.473 0.354 0.118 0.000 2.921 4.046 0.000 0.709 0.236 in Water, 3-Nov-1995 Normalized deviation Average (grand-avg) (known) Tag 63.00 1.16 1.04 --1 - » 63.00 1.16 1.04 59.67 0.01 -0.12 59.33 -0.11 -0.23 64.00 1.51 1.39 526.00 161.55 161.43 46.33 -4.61 -4.73 440.00 131.76 131.64 93.00 11.65 11.43 69.33 3.35 3.23 » 1 X II X X f Data sorted by Laboratory Average Average Tag 46.33 U. 47.00 U 49.67 JJ 51.67 52.00 52.33 53.00 53.00 53.00 53.33 54.00 54.33 54.33 54.67 54.67 54.67 55.00 55.00 55.33 55.33 55.33 55.67 55.67 55.67 55.67 55.67 56.00 56.00 56.00 = No data submitted 0 = Insufficient data V- Lab WK OB PB RH A VH TL TC AL VA UX SD SC SN FZ DM K AH T Q EB VE TQ GI CP C UT RF NH Average Tag 56.00 56.33 56.33 57.00 57.00 57.00 57.33 57.67 57.67 57.67 57.67 57.67 57.67 57.67 58.00 58.00 58.00 58.00 58.00 58.00 58.33 58.33 58.33 58.33 58.33 58.67 58.67 58.67 58.67 TAG SYMBOLS x = Determined Lab GQ QT NJ HX BC AZ LF SF M KL HP DT DE BO PW PQ MQ CJ AW AU RV QX PI KX E LE 1C GL CC Average Tag 58.67 59.00 59.00 59.00 59.00 59.00 59.00 59.00 59.33 59.33 59.33 59.33 59.33 59.67 59.67 59.67 59.67 59.67 59.67 59.67 59.67 59.67 59.67 59.67 59.67 59.67 60.00 60.00 60.00 ft = Above control to be an outlier § = Below control Lab BN TI S RU OA EZ EL DD WD RR QZ QJ PV W TH SZ SR JG J HK GE DZ CM AK AJ AF UP QP CX limit limit 4 ------- CRD-LV Performance Evaluation: Gamma Cobalt-60 in Water, 3-Nov-1995 8 ... * /37 Data sorted by Laboratory Average Average Tag 60.00 60.33 . 60.33 60.33 60.33 60.33 60.33 60.33 60.33 60.67 60.67 60.67 60.67 60.67 61.00 61.00 61.00 61.00 61.00 61.00 61.00 61.00 61.33 61.33 % responding labs Lab Average Tag BL 61.33 TD 61.33 RO 61.67 R 62.00 LT 62.00 JE 62.00 I 62.00 EA 62.00 BM 62.00 VI 62.00 RX 62.33 MA 62.33 AP 62.67 AN 62.67 UY 62.67 UW 62.67 SX 63.00 SI 63.00 LR 63.00 HL 63.00 DH 63.00 BB 63.33 SS 63.33 HJ 63.33 Frequency distribution Lab Average Tag FJ 63.67 AE 63.67 QW 64.00 SM 64.00 MX 64.00 JS 64.00 DL 64.33 CQ 64.67 CA 65.00 BH 65.00 RZ 65.00 MP 65.33 QU 66.00 DO 66.67 DG 67.33 CK 68.00 VS 69.33 It VO 69.33 ft U 69.33 ft CE 70.00 ft BK 72.00 ft UN 85.33 x NO 93.00 x FL 440.00 x 526.00 x Lab PM O WF VM sv L KH N PU OM AY JY BA PE TR EX X m BG OL cs UR WO WL WJ 1 ° -6 ' -4 -_ -Illlllll-ll ' -2 0 - _ +2 ' +4 II +6 Normalized deviation of the mean from the known value % responding labs 1 0 ' "- -6 -4 s No data submitted 0 s Insufficient data Frequency distribution I _ _-- l-ll. Illlllllll-l. ._ _ 13 3 T I T Normalized deviation of the mean from TAG SYMBOLS +2 ' +4 the grand average ft = Above control x = Determined to be an outlier Jl = Below control +6 limit limit J ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 10/37 Zinc-65 Statistical Summary 193 Participants The known value of this nuclide is 125.0 pCi/1 with an expected precision of 13.0; the control limits are 102.4 to 147.6; the warning regions are 102.4 to 110.0 and 140.0 to 147.6 34(17.6 %) Failed to respond »% 8(4.1 %) Outliers 5(2.6 %) Out of control but not an outlier Statistic . 136(70.5 %) Within all limits Respondents 1O(5.2 %) In warning zone but within control Non-outliers Mean Std. Dev. Variance % Coef. of Var. % deviation of mean from known value Norm. dev. of mean from known value Median % deviation of median from known value Norm. dev. of median from known value 149.68 Grand Avg 128.89 144.90 8.98 20996.19 80.58 96.81 6.96 19.74 3.11 0.17 0.43 129.67 129.33 3.73 3.47 0.03 0.48 13(8.2 %) More than 3 norm. S.D. -,% 1O(6.3 %) Between 2 and 3 norm. S.D." 90(56.6 %) Within 1 norm. S.D. of known value 46(28.9 %) Between 1 and 2 norm. S.D. ------- 11/37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 Zinc-65 Exper. Rng anal Lnb A AE AF AH AI AJ AK AL AN AP AU AW AY AZ BA BB BC BG BH BI BK BL BM BN BO BW C CA CC CE CG CJ CK CM CO CP CQ CS CX D DD DE DG DH m, = 0 = v- Res. 1 113.0 126.0 116.0 129.0 - 136.0 128.0 137.0 126.0 135.0 120.0 118.0 144.0 150.0 1330.0 - 135.0 131.0 136.0 139.0 146.0 128.0 132.0 125.0 128.0 106.0 127.0 130.0 131.0 , 111.0 130.0 128.0 141.0 137.0 159.0 132.0 135.0 121.0 122.0 119.0 148.0 Res. 2 110.0 128.0 127.0 135.0 129.0 128.0 129.0 127.0 135.0 130.0 124.0 145.0 137.0 1360.0 137.0 123.0 146.0 142.0 146.0 131.0 126.0 127.0 126.0 110.0 129.0 131.0 132.0 134.0 130.0 120.0 131.0 148.0 164.0 131.0 129.0 122.0 126.0 120.0 143.0 Res. 3 113.0 133.0 123.0 130.0 134.0 127.0 123.0 130.0 140.0 120.0 124.0 145.0 147.0 1270.0 136.0 127.0 119.0 141.0 148.0 128.0 124.0 129.0 134.0 114.0 126.0 131.0 125.0 149.0 120.0 136.0 126.0 137.0 165.0 131.0 131.0 122.0 109.0 123.0 139.0 No data submitted Insufficient data x = Sigma (R 1.73 3.61 5.57 3.21 3.61 0.58 7.02 2.08 2.89 5.77 3.46 0.58 6.81 45.83 1.00 4.00 13.65 1.53 , 1.15 1.73 4.16 2.00 4.16 4.00 1.53 0.58 3.79 19.14 5.77 8.00 7.64 6.35 3.21 0.58 3.06 0.58 8.89 2.08 4.51 + SR) 0.136 0.318 0.500 0.273 0.318 0.045 0.636 0.182 0.227 0.454 0.273 0.045 0.591 6.884 0.091 0.363 1.432 0.136 0.091 0.136 0.363 0.182 0.363 . 0.363 0.136 0.045 0.318 2.384 0.454 0.727 0.682 0.500 0.273 0.045 0.273 0.045 0.772 0.182 0.409 Average 112.00 129.00 122.00 131.33 133.00 127.67 129.67 127.67 136.67 123.33 122.00 144.67 144.67 1320.00 136.00 127.00 133.67 140.67 146.67 129.00 127.33 127.00 129.33 110.00 127.33 130.67 129.33 131.33 126.67 128.00 132.67 140.67 162.67 131.33 131.67 121.67 119.00 120.67 143.33 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) -2.25 0.01 -0.92 0.33 ;, 0.55 -0.16 0.10 -0.16 1.04 -0.74 -0.92 2.10 2.10 158.70 0.95 -0.25 0.64 1.57 2.37 0.01 -0.21 -0.25 0.06 -2.52 -0.21 0.24 0.06 0.33 -0.30 -0.12 0.50 1.57 450 0.33 0.37 -0.96 -1.32 -1.10 1.92 (known) Tag -1.73 0.53 -0.40 0.84 - 1.07 0.36 0.62 0.36 1.55 -0.22 -0.40 2.62 2.62 159.22 x 1.47 0.27 1.15 2.09 -» 2.89 0.53 0.31 0.27 0.58 -2.00 0.31 0.75 0.58 0.84 0.22 0.40 * 1.02 2.09 5.02 x 0.84 ; ' » 0.89 -0.44 -0.80 -0.58 2.44 ft = Above control limit 11 = Below control limit . ' ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 12/37 Zinc-65 Lab DM DO DR DT DZ E EA EB EL 'EM EX EZ FJ .."FK FL FU FZ GE GI GL GQ HI HJ HK HL HP HX I 1C J JE JG JI JS JY K KH KL KX L "LE:; LF LR LT M Res. 1 117.0 129.0 - 118.0 115.0 135.0 125.0 131.0 128.0 111.0 125.0 139.0 140.0 - 120.0 122.0 118.0 124.0 118.0 145.0 124.0 133.0 137.0 125.0 128.0 124.0 135.0 132.0 134.0 110.0 133.0 119.0 117.0 157.0 121.0 121.0 139.0 -T;7 455.0 : 130.0 174.0 135.0 138.0 Res. 2 122.0 134.0 148.0 116.0 121.0 126.0 132.0 126.0 98.0 121.0 140.0 - 131.0 120.0 134.0 131.0 128.0 117.0 152.0 129.0 126.0 137.0 130.0 130.0 137.0 129.0 132.0 131.0 110.0 130.0 147.0 117.0 145.0 131.0 129.0 142.0 v 470.0 130.0 175.0 127.0 135.0 Res. 3 122.0 132.0 ^ - V - \ - 131.0 109.0 135.0 126.0 130.0 127.0 89.0 123.0 137.0 127.0 120.0 134.0 133.0 124.0 119.0 158.0 131.0 131.0 137.0 133.0 127.0 126.0 138.0 131.0 130.0 111.0 140.0 129.0 120.0 152.0 122.0 123.0 141.0 443.0 140.0 164.0 140.0 126.0 = No data submitted 0 s Insufficient data x = Exper. Sigma 2.89 2.52 15.04 3.79 8.08 0.58 1.00 1.00 11.06 2.00 1.53 6.66 0.00 6.93 8.14 2.31 1.00 6.51 3.61 3.61 0.00 4.04 1.53 7.00 4.58 0.58 2.08 0.58 5.13 14.19 1.73 6.03 5.51 4.16 1.53 13.63 5.77 6.08 6.56 6.24 Rng anal (R + SR) 0.227 0.227 1.692 0.318 0.636 0.045 0.091 0.091 1.000 0.182 0.136 0.591 0.000 0.545 0.682 0.182 0.091 0.591 0.318 0.318 0.000 0.363 0.136 0.591 0.409 0.045 0.182 0.045 0.454 1.518 0.136 0.545 0.454 0.363 0.136 1.432 0.454 0.500 0.591 0.545 Normalized deviation Average 120.33 131.67 ' '- - -' 132.33 113.33 130.33 125.67 131.00 127.00 99.33 123.00 138.67 - 132.67 - 120.00 130.00 127.33 125.33 118.00 151.67 128.00 130.00 137.00 129.33 128.33 129.00 134.00 131.67 131.67 110.33 134.33 131.67 118.00 151.33 124.67 124.33 140.67 456.00 133.33 171.00 134.00 133.00 TAG SYMBOLS Determined to be an outlier (grand-avg) (known) Tag -1.14 0.37 r-v'\w- ,' 0.46 -2.07 0.19 -0.43 0.28 -0.25 -3.94 -0.78 1.30 0.50 -1.18 0.15 -0.21 -0.47 -1.45 3.03 -0.12 0.15 1.08 0.06 -0.07 0.01 0.68 0.37 0.37 -2.47 , 0.73 0.37 -1.45 2.99 -0.56 -0.61 1.57 43.68 0.59 5.61 0.68 0.55 ft = Above 11 = Below -0.62 0.89 ~ * vr ' .X 0.98 -1.55 0.71 0.09 0.80 0.27 tr -3.42 Ji -0.27 1.82 >" 1.02 -0.67 0.67 0.31 0.04 -0.93 3.55 ft 0.40 0.67 1.60 0.58 0.44 0.53 1.20 0.89 0.89 -1.95 1.24 0.89 -0.93 3.51 ft -0.04 -0.09 2.09 44.10 x 1.11 6.13 x 1.20 1.07 control limit control limit ------- sf 13/37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 } Zinc-65 Exper. Rng anal Lab MA ML MP MQ MV MX MY N NH NJ NK NO NP NZ O OA OB OK OL OM OZ P PB PE PI PM PQ PU PV PW Q QJ QM QP QT QU QW QX QZ R RF RH RL RO RR = 0 = ^ Res. 1 131.0 152.0 119.0 140.0 '{"^ 121.0 133.0 124.0 131.0 140.0 129.0 162.0 118.0 99.0 132.0 122.0 131.0 134.0 125.0 129.0 126.0 124.0 130.0 149.0 122.0 130.0 126.0 116.0 131.0 135.0 126.0 115.0 135.0 129.0 Res. 2 140.0 " * f 153.0 130.0 139.0 124.0 133.0 124.0 135.0 %..",_.. .. 140.0 129.0 163.0 119.0 102.0 125.0 122.0 129.0 136.0 128.0 139.0 130.0 128.0 130.0 ' '<; 110.0 128.0 132.0 131.0 110.0 . 131.0 130.0 131.0 120.0 137.0 138.0 Res. 3 132.0 154.0 130.0 136.0 132.0 132.0 120.0 136.0 139.0 129.0 146.0 117.0 107.0 131.0 126.0 126.0 124.0 132.0 144.0 134.0 132.0 140.0 103.0 118.0 132.0 135.0 124.0 134.0 139.0 122.0 114.0 143.0 132.0 No data submitted Insufficient data x = Sigma (R 4.93 ,,, , .- * ,,, 1.00 6.35 2.08 5.69 0.58 2.31 2.65 0.58 0.00 9.54 1.00 4.04 3.79 2.31 2.52 6.43 3.51 7.64 4.00 4.00 5.77 24.79 5.03 1.15 4.51 7.02 1.73 4.51 4.51 3.21 4.16 4.58 + SR) 0.409 0.091 0.500 0.182 0.500 0.045 0.182 0.227 - 0.045 0.000 , . 0.772 0.091 0.363 0.318 0.182 0.227 0.545 0.318 0.682 0.363 0.363 0.454 3.076 0.454 0.091 0.409 0.636 0.136 0.409 0.409 0.273 0.363 0.409 Average 134.33 : .. , ,.'- 153.00 126.33 !'! , 138.33 125.67 132.67 122.67 134.00 - ~, 139.67 129.00 157.00 118.00 102.67 129.33 123.33 128.67 131.33 128.33 137.33 130.00 128.00 133.33 120.67 122.67 131.33 130.67 116.67 132.00 134.67 126.33 116.33 138.33 133.00 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) (known) Tag 0.73 .X -''_. ' ^ " ^ 3.21 -0.34 s , _. -- " 1.26 \ * \ ' . -0.43 0.50 -0.83 0.68 -. ' *" % > ' 1.44 0.01 3.75 -1.45 ' - 1 , ' , ~ -3.49 0.06 -0.74 -0.03 0.33 -0.07 1.12 0.15 -0.12 0.59 -1.10 -0.83 0.33 0.24 -1.63 0.41 0.77 -0.34 -1.67 1.26 0.55 1T = Above U & Below 1.24 r. ' ,\ - ". '»;-* i 3.73 11 0.18 " ' " ~- "- , , 1.78 » ". 0.09 1.02 -0.31 - 1.20 ' *' .' - 1.95 0.53 ; * ' 4.26 ft -0.93 ' , -2.98 0.58 -0.22 0.49 0.84 0.44 1.64 0.67 0.40 1.11 » , -0.58 -0.31 0.84 0.75 -1.11 0.93 1.29 0.18 -1.15 1.78 1.07 control limit control limit . ^ ------- CRD-LV Performance Evaluation : Gamma in Water, 3-Nov-1995 14/37 Zinc-65 Lab RU RV RX RZ S SC SD SF SI SM SN SR ss ST sv sx sz T TC TD TH TI TL TO TQ TR TS U 'UE UM UN UP UR UT UW UX UY VA VC VE VG VH VI VM Res. 1 130.0 125.0 130.0 123.0 127.0 132.0 125.0 128.0 138.0 129.0 129.0 133.0 135.0 V 148.0 136.0 134.0 123.0 99.0 129.0 127.0 137.0 95.0 -. 124.0 126.0 """ 130.0 129.0 135.0 35;0 35.0 131.0 124.0 132.0 129.0 -, 139.0 -'- 136.0 139.0 115.0 Res. 2 130.0 125.0 112.0 123.0 127.0 127.0 132.0 145.0 136.0 137.0 130.0 131.0 129.0 124.0 134.0 125.0 122.0 108.0 141.0 128.0 134.0 121.0 132.0 126.0 130.0 137.0 133.0 34.0 35.0 116.0 119.0 127.0 117.0 131.0 ^ 133.0 133.0 115.0 Res. 3 129.0 116.0 121.0 128.0 , 128.0 127.0 112.0 134.0 143.0 132.0 130.0 129.0 134.0 135.0 135.0 124.0 124.0 104.0 140.0 128.0 135.0 120.0 122.0 120.0 133.0 - 137.0 137.0 38;0 35.0 121.0 114.0 136.0 132.0 136.0 133.0 143.0 125.0 = No data submitted 0 = Insufficient data XH Exper. Sigma 0.58 5.20 9.00 2.89 0.58 2.89 10.15 8.62 3.61 4.04 0.58 2.00 3.21 12.01 1.00 5.51 1.00 4.51 6.66 0.58 1.53 14.73 5.29 3.46 1.73 4.62 2.00 2.08 0.00 7.64 5.00 4.51 7.94 4.04 1.73 5.03 5.77 Rng anal (R + SR) 0.045 0.409 0.818 0.227 0.045 0.227 0.909 0.772 0.318 0.363 0.045 0.182 0.273 1.172 0.091 0.454 0.091 0.409 0.545 0.045 0.136 1.345 0.454 0.273 0.136 0.363 0.182 0.182 0.000 0.682 0.454 0.409 0.682 0.363 0.136 0.454 0.454 Normalized deviation Average 129.67 122.00 121.00 124.67 127.33 128.67 123.00 135.67 139.00 132.67 129.67 131.00 132.67 135.67 135.00 127.67 123.00 103.67 136.67 127.67 135.33 112.00 126.00 124.00 131.00 134.33 135.00 35.67 35.00 122.67 119.00 131.67 126.00 135.33 134.00 138.33 118.33 TAG SYMBOLS Determined to be an outlier (grand-avg) (known) Tag 0.10 -0.92 -1.05 -0.56 -0.21 -0.03 -0.78 0.90 1.35 0.50 0.10 0.28 0.50 0.90 0.81 -0.16 -0.78 -3.36 1.04 -0.16 0.86 -2.25 -0.38 -0.65 0.28 0.73 0.81 -12.42 -12.51 -0.83 -1.32 0.37 -0.38 0.86 .... 0.68 1.26 -1.41 ft = Above II = Below 0.62 -0.40 -0.53 -0.04 0.31 0.49 -0.27 1.42 1.87 1.02 0.62 0.80 1.02 .'.'....:.; :,:i.<: V ... 1.42 1.33 0.36 -0.27 -2.84 1.55 0.36 1.38 -1.73 0.13 -0.13 0.80 1.24 1.33 -1190 x 1L99 x -0.31 -0.80 0.89 0.13 'tH/i;'' ; .:.. 1.38 ' -v " v 1.20 1.78 -0.89 control limit control limit J ------- ff 15/37 Zinc-65 Lab Res. 1 VO 132.0 VR '' ;~ VS 124.0 VT W 131.0 WD 140.0 WF 125.0 WI WJ 1189.0 WK 104.0 WL 928.0 WO 104.0 X 120.0 CKD-LV Performance Evaluation Res. 2 128.0 129.0 132.0 133.0 125.0 1190.0 126.0 1060.0 112.0 117.0 Exper. Res. 3 Sigma 142.0 7.21 133.0 4.51 ' 127.0, 2.65 128.0 6.03 125.0 0.00 : 1195.0 3.21 112.0 11.14 967.0 36.04 104.0 4.62 118.0 1.53 : Gamma Rng anal (R + SR) 0.636 0.409 0.227 0.545 0.000 0.273 1.000 5.326 0.363 0.136 in Water, 3-Nov-1995 Normalized deviation Average (grand-avg) (known) 134.00 0.68 1.20 128.67 -0.03 0.49 ",,_ v " 130.00 0.15 0.67 133.67 0.64 1.15 125.00 -0.52 0.00 1191.33 141.55 142.07 114.00 -1.98 -1.47 965,00 111.40 111.92 106.67 -2.96 -2.44 118.33 -1.41 -0.89 ) Tag * x. X Data sorted by Laboratory Average Average 35.00 35.67 99.33 102.67 103.67 106.67 110.00 110.33 112.00 112.00 113.33 114.00 116.33 116.67 118.00 118.00 118.00 118.33 118.33 119.00 119.00 120.00 120.33 120.67 120.67 121.00 121.67 122.00 122.00 Tag X X 11 s No data submitted 0 = Insufficient data v- Lab UT UR EX PB TC WO C JG TL A DZ WK RH QX OM K GQ X VM UX DG FZ DM QP DH RX DE RV AW Average Tag 122.00 122.67 122.67 122.67 123.00 123.00 123.00 123.33 123.33 124.00 124.33 124.67 124.67 125.00 125.33 125.67 125.67 126.00 126.00 126.33 126.33 126.67 127.00 127.00 127.00 127.33 127.33 127.33 127.33 TAG SYMBOLS x = Determined Lab AF UW QT NJ T SD EZ PI AU TR KX RZ KL WF GL N EA VA TQ RF MQ CK EL BN BC S GI CA BM Average Tag 127.67 127.67 127.67 127.67 128.00 128.00 128.00 128.33 128.33 128.67 128.67 128.67 129.00 129.00 129.00 129.00 129.33 129.33 129.33 129.33 129.67 129.67 129.67 130.00 130.00 130.00 130.00 130.33 130.67 ft s Above control to be an outlier U & Below control Lab TH SZ AN AK Q HJ CM PU HX VS sc PM OA I BL AE PE HP CE BO SN RU AL W PW HK GE E QW limit limit y ------- CRD-LV Zinc-65 Average Tag 130.67 131.00 131.00 131.00 131.33 131.33 131.33 131.33 131.33 131.67 131.67 131.67 131.67 131.67 131.67 132.00 132.33 132.67 132.67 132.67 132.67 132.67 133.00 133.00 % responding labs in. _ - IU' ---------- -6 -4 % responding labs 10' ----------- 0. Si -6 -4 = No data submitted 0 = Insufficient data Performance Evaluation: Gamma in Water, 3-Nov-1995 Data sorted by Laboratory Average Lab Average Tag Lab Average CC 133.00 AJ 137.33 U 133.33 QJ 138.33 SR 133.33 LF 138.33 EB 133.67 WD 138.33 QU 133.67 BG 138.67 PQ 134.00 VO 139.00 CX 134.00 VH 139.67 CJ 134.00 NO 140.67 AH 134.00 LT 140.67 UY 134.00 1C 140.67 JY 134.33 UN 143.33 JE 134.33 MA 144.67 J 134.33 JS 144.67 DO 134.67 R 146.67 DD 135.00 UP 151.33 QZ 135.00 SX 151.67 DT 135.33 VE 153.00 SS 135.33 . TI 157.00 SM 135.67 SV 162.67 NH 135.67 SF 171.00 FL 136.00 BB 456.00 CP 136.67 TD 965.00 RR 136.67 AP 1191.33 M 137.00 HL 1320.00 Frequency distribution Illii _ T_ _ T ..iiiillllli.i. . -2 0 +2 Normalized deviation of the mean from the known value Frequency distribution . Jllll. - T . -l.lhllllllll... T-_ ._ Tag ft tr tr ft X X X X X X +4 -2 0 +2 +4 Normalized deviation of the mean from the grand average TAG SYMBOLS ft x = Determined to he an outlier U s Above s Below 16/37 Lab PV VI RO MX FJ SI O L CQ BH DL AZ AY BK KH m MP OL CS LR LE WL WJ BA i T V* R +6 control limit control limit ------- \ UNITED STATES ENVIRONMENTAL PROTECTION AGENCY NATIONAL EXPOSURE RESEARCH LABORATORY P O. BOX 93478 LAS VEGAS, NV 891 93-3478 OFFICE OF RESEARCH AND DEVELOPMENT A note regarding the Cesium-134 portion of the November 3, 1995 Gamma in Water Performance Evaluation Study: The difference between the grand average and the known value was significant for this study. The primary peak for Cs-134 (604.7) is subject to coincidence summing, resulting in a negative bias if quantified using commercial mixed standards. Efficiency factors based on these standards do not correctly quantify peaks subject to summing, and in general produce a negative bias as was observed. This bias will be minimized if the efficiency is calculated using a separate Cs-134 standard or a previous PE study. Please direct any questions to Steve Pia at 702 798-2102. Recycled/Recyclable Printed with Vegetable Oil Based InKs on 100% Recycled Paper (40% Postconsumer) ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 17/37 Cesium-134 Statistical Summary 193 Participants The known value of this nuclide is 40.0 pCi/I with an expected precision of 5.0; the control limits are 31.3 to 48.7; the warning regions are 31.3 to 34.2 and 45.8 to 48.7 34(17.6 %) Failed to respond 5(2.6 %) Outliers ' 3(1.6 %) Out of control '" but not an outlier Statistic ; 125(64.8 %) Within all limits Respondents 26(13.5 %) In warning zone but within control Non-outliers Mean Std. Dev. Variance % Coef. of Var. % deviation of mean from known value Norm. dev. of mean from known value Median % deviation of median from known value Norm. dev. of median from known value 40.64 28.74 826.15 70.73 1.59 0.02 37.00 -7.50 -0.10 Grand Avg 36.85 3.03 9.19 8.23 -7.86 -1.04 36.67 -8.33 -1.10 11(6.9 %) More than 3 norm. S.D. ». 23(14.5 %) Between 2 and 3 norm. S.D. 61(38.4 %) Within 1 norm. S.D. of Known value * 64(40.3 %) Between 1 and 2 norm. S.D. ------- 1 8 / 37 CKD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 Cesium-134 Exper. Rng anal Lab A AE AF AH AI AJ AK AL AN AP AU AW AY AZ BA BB BC BG BH BI BK BL BM BN BO BW C CA CC CE CG CJ CK CM CO CP CQ cs ex D DD DE DG DH DL Res. 1 31.0 35.0 34.0 36.0 33.0 36.0 41.0 32.0 39.0 39.0 34.0 37.0 50.0 38.0 40.0 35.0 40.0 33.0 43.0 36.0 38.0 34.0 36.0 36.0 37.0 34.0 38.0 34.0 33.0 34.0 38.0 35.0 42.0 38.0 37.0 35.0 34.0 40.0 35.0 Res. 2 32.0 38.0 33.0 35.0 33.0 36.0 40.0 36.0 38.0 35.0 34.0 36.0 40.0 41.0 38.0 33.0 25.0 37.0 "' 44.0 39.0 37.0 36.0 37.0 37.0 38.0 35.0 37.0 38.0 33.0 35.0 33.0 39.0 43.0 37.0 38.0 , 36.0 36.0 40.0 38.0 Res. 3 30.0 38.0 32.0 35.0 35.0 36.0 49.0 34.0 37.0 38.0 30.0 36.0 47.0 41.0 39.0 34.0 24.0 35.0 44.0 37.0 36.0 35.0 35.0 36.0 38.0 36.0 39.0 37.0 33.0 33.0 35.0 42.0 42.0 40.0 37.0 36.0 33.0 39.0 37.0 s No data submitted 0 = V Insufficient data x = Sigma (R 1.00 1.73 1.00 0.58 1.15 0.00 4.93 2.00 1.00 2.08 2.31 0.58 5.13 1.73 1.00 1.00 8.96 2.00 0.58 1.53 1.00 1.00 1.00 0.58 0.58 1.00 1.00 2.08 0.00 1.00 2.52 3.51 0.58 1.53 0.58 0.58 1.53 0.58 1.53 + SR) 0.236 0.354 0.236 0.118 0.236 0.000 1.120 0.473 0.236 0.473 0.473 0.118 1.345 0.354 0.236 0.236 2.695 0.473 0.118 0.354 0.236 0.236 0.236 0.118 0.118 0.236 0.236 0.473 0.000 0.236 0.591 0.827 0.118 0.354 0.118 0.118 0.354 0.118 0.354 Average 31.00 37.00 33.00 35.33 33.67 36.00 43.33 34.00 38.00 37.33 32.67 36.33 45.67 40.00 39.00 34.00 29.67 35.00 43.67 37.33 37.00 35.00 36.00 36.33 37.67 35.00 38.00 36.33 33.00 34.00 35.33 38.67 42.33 38.33 37.33 35.67 34.33 39.67 36.67 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) (known) -2.03 0.05 -1.34 -0.53 -1.10 -0.30 2.24 -0.99 0.40 0.17 -1.45 -0.18 3.05 1.09 0.74 -0.99 -2.49 -0.64 2.36 0.17 0.05 -0.64 -0.30 -0.18 0.28 -0.64 0.40 -0.18 -1.34 -0.99 -0.53 0.63 1.90 0.51 0.17 -0.41 -0.87 0.97 -0.07 IT = Above 11 s Below -3.12 -1.04 -2.42 -1.62 -2.19 -1.39 1.15 -2.08 -0.69 -0.92 -2.54 -1.27 1.96 0.00 -0.35 -2.08 -3.58 -1.73 1.27 -0.92 -1.04 -1.73 -1.39 -1.27 -0.81 -1.73 -0.69 , , -1.27 -2.42 -2.08 -1:62 -0.46 0.81 -0.58 -0.92 -1.50 -1.96 -0.12 -1.15 control control Tag 11 * 11 ' " * limit limit ------- CRD-LV Performance Evaluation : Gamma in Water, 3-Nov-1995 19 / 37 ] Cesium- 134 Lab DM DO DR DT DZ E EA EB EL EWx EX. EZ FJ 'FK' FL FU FZ GE GI GL GQ m HJ HK HL HP HK I 1C J JE JG JI JS JY K KH KL KK L LE LF LR LT M = 0 3 v- Res. 1 36.0 35.0 33.0 44.0 39.0 40.0 33.0 37.0 , 34.0 40.0 36.0 40.0 36.0 36.0 31.0 31.0 38.0 44.0 41.0 37.0 39.0 41.0 36.0 35.0 39.0 38.0 36.0 33.0 . 38.0 47.0 40.0 41.0 36.0 37.0 39.0 40.0 37.0 72.0 36.0 37.0 Res. 2 35.0 36.0 40.0 45.0 37.0 40.0 32.0 36.0 X\V\,* '' 44.0 37.0 38.0 41.0 35.0 36.0 34.0 31.0 38.0 44.0 33.0 37.0 39.0 38.0 34.0 37.0 37.0 37.0 36.0 30.0 < 38.0 42.0 42.0 42.0 36.0 40.0 40.0 38.0 37.0 740 38.0 37.0 Res. 3 35.0 38.0 37.0 42.0 40.0 40.0 32.0 36.0 *, i ~ , \ " 42.0 37.0 39.0 40.0 36.0 35.0 35.0 34.0 37.0 42.0 36.0 37.0 39.0 37.0 34.0 37.0 42.0 37.0 35.0 31.0 38.0 39.0 44.0 40.0 38.0 38.0 40.0 35.0 33.0 61.0 38.0 36.0 No data submitted Insufficient data x = Exper. Sigma 0.58 1.53 3.51 1.53 1.53 0.00 0.58 0.58 5.29 1.73 1.53 0.58 0.58 0.58 2.08 1.73 0.58 1.15 4.04 0.00 0.00 2.08 1.15 1.15 2.52 0.58 0.58 1.53 0.00 4.04 2.00 1.00 1.15 1.53 0.58 2.52 2.31 7.00 1.15 0.58 Rng anal (R + SR) 0.118 0.354 0.827 0.354 0.354 0.000 0.118 0.118 '- "\'^;> 1.345 0.354 0.354 0.118 0.118 0.118 0.473 0.354 0.118 0.236 0.945 0.000 0.000 0.473 0.236 0.236 0.591 0.118 0.118 0.354 0.000 0.945 0.473 0.236 0.236 0.354 0.118 0.591 0.473 2.020 0.236 0.118 Normalized deviation Average 35.33 36.33 36.67 43.67 38.67 40.00 32.33 36.33 v \ " 'Y'V 40.00 38.00 37.67 40.33 35.67 35.67 33.33 32.00 37.67 43.33 36.67 37.00 39.00 38.67 34.67 36.33 39.33 37.33 35.67 31.33 38.00 42.67 42.00 41.00 36.67 38.33 39.67 37.67 35.67 69.00 37.33 36.67 TAG SYMBOLS Determined to be an outlier (grand-avg) (known) Tag -0.53 -0.18 -0.07 2.36 0.63 1.09 -1.57. -0.18 ;\ ,"f, ;C" "" ^ " -°." 1.09 0.40 0.28 N 1.20 -0.41 -0.41 -1.22 -1.68 0.28 2.24 -0.07 0.05 0.74 0.63 -0.76 -0.18 0.86 0.17 -0.41 -1.91 0.40 2.01 1.78 1.44 -0.07 0.51 0.97 0.28 -0.41 11.14 0.17 -0.07 IT = Above li = Below -1.62 -1.27 ,^ ^ -':' -1.15 1.27 -0.46 0.00 -2.66 -1.27 Xpc^y 0.00 -0.69 -0.81 \ 0.12 * -1.50 -1.50 -2.31 -2.77 -0.81 1.15 -1.15 -1.04 -0.35 -0.46 -1.85 -1.27 -0.23 -0.92 -1.50 -3.00 .,,,<,;; V ./:. , -0.69 0.92 0.69 0.35 -1.15 -0.58 -0.12 -0.81 -1.50 10.06 x -0.92 -1.15 control limit control limit ------- /f . 'T- ..- . . - .. . 20 / 37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 ^v Cesium-134 Exper. Rng anal Lab MA ML MP MQ MV MX MY N NH NJ NK' NO NP NZ O OA OB OK OL OM OZ P PB PE PI PM PQ PU PV PW Q QJ QM QP QT QU QW QX QZ R RF RH RL RO RR = Res. 1 38.0 ' J * ? ^ 47.0 30.0 39.0 36.0 35.0 32.0 39.0 39.0 36.0 51.0 41.0 39.0 39.0 34.0 36.0 33.0 32.0 34.0 37.0 37.0 34.0 48.0 35.0 40.0 41.0 37.0 36.0 37.0 40.0 33.0 36.0 37.0 Res. 2 36.0 43.0 36.0 41.0 39.0 35.0 35.0 40.0 39.0 35.0 31.0 36.0 - ' " ~ 40.0 39.0 35.0 34.0 34.0 33.0 33.0 36.0 37.0 36.0 46.0 35.0 41.0 38.0 39.0 33.0 38.0 38.0 37.0 36.0 36.0 Res. 3 36.0 . 46.0 36.0 41.0 37.0 34.0 33.0 40.0 < 40.0 36.0 40.0 35.0 42.0 34.0 36.0 37.0 32.0 34.0 34.0 38.0 38.0 35.0 30.0 35.0 42.0 38.0 - 39.0 36.0 37.0 40.0 37.0 36.0 38.0 No data submitted Insufficient data x = Sigma (R 1.15 2.08 3.46 1.15 1.53 0.58 1.53 0.58 ! 0.58 0.58 10.02 3.21 1.53 2.89 1.00 1.53 1.00 1.00 0.58 1.00 0.58 1.00 9.87 0.00 1.00 1.73 1.15 1.73 0.58 1.15 2.31 0.00 1.00 + SR) 0.236 0.473 0.709 0.236 0.354 0.118 0.354 0.118 0.118 0.118 3.596 0.709 0.354 0.591 0.236 0.354 0.236 0.236 0.118 0.236 0.118 0.236 3.146 0.000 0.236 0.354 0.236 0.354 0.118 0.236 0.473 0.000 0.236 Average 36.67 45.33 34.00 40.33 5 . 37.33 34.67 33.33 39.67 39.33 35.67 40.67 37.33 40.33 37.33 35.00 35.67 33.00 33.00 33.67 37.00 37.33 35.00 41.33 35.00 41.00 39.00 38.33 35.00 37.33 39.33 35.67 36.00 37.00 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) (known) Tag -0.07 > S1" * t 2^94 -0.99 1.20 0.17 -0.76 -1.22 0.97 0.86 -0.41 1.32 0.17 1.20 0.17 -0.64 -0.41 -1.34 -1.34 -1.10 0.05 0.17 -0.64 1.55 -0.64 1.44 0.74 0.51 -0.64 0.17 0.86 -0.41 -0.30 0.05 It = Above U s Below -1.15 ,»-,-' 1.85 -2.08 , ^ % 0.12 ' * -0.92 -1.85 -2.31 * -0.12 ,, - - «: -; * -0.23 -1.50 ':. * 0.23 -0.92 - 0.12 -0.92 -1.73 -1.50 -2.42 -2.42 -2.19 -1.04 -0.92 -1.73 * 0.46 -1.73 0.35 -0.35 -0.58 -1.73 -0.92 -0.23 -1.50 ' -1.39 -1.04 control limit control limit ------- CRD-LV Performance Evaluation : Gamma in Water, 3-Nov-1995 21/37 Cesium- 134 Lab RU RV RX RZ S sc SD SF SI SM SN SR ss sf ., sv sx sz T TB TC ID TH TI TL TX) TQ TR TS U UE UM UN UP UK UT UW UX UY VA VG VE VG VH VI VM Res. 1 35.0 37.0 40.0 38.0 38.0 35.0 35.0 34.0 37.0 37.0 36.0 38.0 40.0 36.0 37.0 34.0 35.0 ,'S - 26.0 36.0 40.0 39.0 36.0 34.0 33.0 41.0 36.0 36.0 63.0 : 41.0 41.0 30.0 34.0 36.0 35.0 35.0 32.0 44.0 Res. 2 36.0 40.0 39.0 38.0 39.0 31.0 35.0 36.0 39.0 38.0 38.0 36.0 39.0 35.0 34.0 36.0 37.0 31.0 36.0 39.0 37.0 34.0 31.0 33.0 » 40.0 37.0 36.0 .' ,'61&S'.:" 41.0 42.0 32.0 36.0 33.0 * "'.':'>- 34.0 34.0 30.0 48.0 Res. 3 34.0 38.0 41.0 38.0 > 39.0 31.0 33.0 39.0 39.0 37.0 37.0 37.0 39.0 31.0 33.0 36.0 39.0 29.0 35.0 38.0 38.0 39.0 33.0 33.0 42.0 39.0 35.0 /S/eisCK-- 41.0 40.0 32.0 36.0 32.0 36.0 ' 33.0 32.0 40.0 s No data submitted , 0 g Insufficient data x = Exper. Sigma 1.00 1.53 1.00 0.00 0.58 2.31 1.15 2.52 1.15 0.58 1.00 1.00 0.58 2.65 2.08 1.15 2.00 2.52 0.58 1.00 1.00 2.52 : .:' >"';.:',"'' ''v 1.53 0.00 ."::.: .' " ; 1.00 1.53 0.58 :-:^l;15ii:;- 0.00 1.00 1.15 1.15 2.08 1.00 1.00 1.15 4.00 Rng anal (R + SR) 0.236 0.354 0.236 0.000 0.118 0.473 0.236 0.591 0.236 0.118 0.236 0.236 0.118 0.591 0.473 0.236 0.473 0.591 0.118 0.236 0.236 0.591 0.354 0.000 0.236 0.354 0.118 0,236 0.000 0.236 0.236 0.236 0.473 0.236 0.236 0.236 0.945 Average 35.00 38.33 40.00 38.00 38.67 32.33 34.33 36.33 38.33 37.33 37.00 37.00 39.33 34.00 34.67 35.33 37.00 28.67 35.67 39.00 38.00 36.33 32.67 33.00 41.00 37.33 35.67 61.67 41.00 41.00 31.33 35.33 33.67 35.00 34.00 31.33 44.00 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) (known) Tog -0.64 0.51 1.09 0.40 0.63 -1.57 -0.87 -0.18 0.51 0.17 0.05 0.05 0.86 -0.99 -0.76 -0.53 0.05 -2.84 -0.41 0.74 0.40 -0.18 -1.45 -1.34 1.44 .;'. , '' 0.17 -0.41 8.60 1.44 1.44 -1.91 -0.53 -1.10 -0.64 -0.99 -1.91 2.48 1T = Above 11 = Below -1.73 -0.58 0.00 -0.69 -0.46 -2.66 -1.96 -1.27 -0.58 -0.92 -1.04 -1.04 -0.23 : ' ' -2.08 -1.85 -1.62 -1.04 * -3.93 U -1.50 -0.35 -0.69 -1.27 -2.54 -2.42 \ r;;:,r., » 0.35 * -0.92 -1.50 7.51 x 0.35 0.35 -3.00 -1.62 -2.19 -1.73 * -2.08 -3.00 1.39 control limit control limit ^** ------- 22/37 CRD-LV Performance Evaluation: Gamma Cesium-134 Lab Res. 1 Res. 2 VO 41.0 39.0 VE -": / ~ \^': \ ." VS 35.0 38.0 VT W 36.0 34.0 WD 38.0 38.0 WF 34.0 34.0 WI "'"' ";/ WJ 326.0 326.0 WK 28.0 40.0 WL 274.0 220,0 WO 81& 81.0 X 34.0 35.0 Exper. Rng anal Res. 3 Sigma (R + SR) 32.0 4.73 1.120 v ' 37.0 1.53 0.354 35.0, 1.00 0.236 36.0 1.15 0.236 34.0 0.00 0.000 32 3 '. ' 6.0 0.58 0.118 2.0 6.11 1.795 248.0 27.01 11.246 : 84.0 1.73 0.354 36.0 1.00 0.236 in Water, 3-Nov-1995 Normalized deviation Average (grand-avg) (known) 37.33 0.17 -0.92 'j ^ " \ - " '' 36.67 -0.07 -1.15 , , ',,.. ...... ,. , ,,., 35.00 -0.64 -1.73 37.33 0.17 -0.92 34.00 -0.99 -2.08 325.67 100.05 98.96 33.33 -1.22 -2.31 247.33 72.91 71,82 82.00 15.64 14.55 35.00 -0.64 -1.73 ) Tag ' , * '*' ., X'" X X Data sorted by Laboratory Average Average Tag 28.67 Ji 29.67 U 31.00 li 31.33 31.33 31.33 32.00 32.33 32.33 32.67 32.67 33.00 33.00 33.00 33.00 33.00 33.33 33.33 33.33 33.67 33.67 33.67 34.00 34.00 34.00 34.00 34.00 34.00 34.00 s No data submitted 0 = Insufficient data ^ Lab TC BG A VI UX JG GL SC EB TQ AW TR PU PQ CK AF WK NJ GI VA PV AJ WF VH sv MQ CM BC AN Average Tag 34.33 34.33 34.67 34.67 34.67 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.00 35.33 35.33 35.33 35.33 35.33 35.67 35.67 35.67 35.67 35.67 35.67 35.67 35.67 TAG SYMBOLS Lab SD DG SX NH HX X w VE RU QZ QT QJ PI CC BN BH UY SZ DM CP AH UP TD RH PM OA LF JE GE Average Tag 35.67 35.67 36.00 36.00 36.00 36.33 36.33 36.33 36.33 36.33 36.33 36.33 36.33 36.67 36.67 36.67 36.67 36.67 36.67 36.67 37.00 37.00 37.00 37.00 37.00 37.00 37.00 37.00 37.33 ft s Above control x = Determined to be an outlier !) = Below control Lab FZ DE RO BO AK TL SF I EL DO CJ C AY VS MA M KL HJ DT DL T SR SN RR PW HK BM AE WD limit limit * ------- S. .. . ; CRD-LV Cesium-134 Performance Evaluation: Gamma in Water, 3-Nov-1995 23/37 1 Data sorted by Laboratory Average Average Tag 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.33 37.67 37.67 37.67 37.67 38.00 38.00 38.00 38.00 38.00 38.00 38.33 % responding labs 10 -6 -4 Lab Average Tag VO 38.33 UN 38.33 SM 38.33 R 38.33 Q 38.67 PE 38.67 OM 38.67 N 38.67 LT 39.00 J 39.00 DD 39.00 BL 39.00 AU 39.33 LE 39.33 GQ 39.33 FJ 39.33 CA 39.67 TI 39.67 RZ 39.67 JS 40.00 EZ 40.00 CE 40.00 AP 40.00 SI 40.33 Frequency distribution 1. .III..! . -2 0 Lab Average Tag RV 40.33 QX 40.33 KX 40.67 CX 41.00 S 41.00 HP 41.00 E 41.00 CQ 41.00 TH 41.33 QW 42.00 HL 42.33 BB 42.67 SS 43.33 RF 43.33 O 43.67 1C 43.67 NO 44.00 L 45.33 DH 45.67 RX 61.67 x EX 69.00 x EA 82.00 x BA 247.33 x PB 325.67 x +2 +4 Lab MX FL OL UW UT U QU KH QP K CS JY HI AL DZ BK VM MP AZ UR LR WO WL WJ I +6 Normalized deviation of the mean from the known value % responding labs Frequency distribution m -6 -4 = No data submitted 0 = Insufficient data Illll . _ _ . .Illllllllllll. -2 0 Normalized deviation of the mean from _-_. . +2 +4 the grand average TA£ SYMBOLS ft = Above x = Determined to be an outlier Jl H Below I control limit control limit ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 24/37 Cesium-137 Statistical Summary 193 Participants The known value of this nuclide is 49.0 pCi/I with an expected precision of 5.0; the control limits are 40.3 to 57.7; the warning regions are 40.3 to 43.2 and 54.8 to 57.7 33(17.1 %) Failed to respond .. 9(4.7 %) Outliers 5(2.6 %) Out of control but not an outlier Statistic 136(70.5 %) Within all limits Respondents * 1O(5.2 %) In warning zone but within control Non-outliers Mean Std. Dev. Variance %Coef. ofVar. % deviation of mean from known value Norm. dev. of mean from known value Median % deviation of median from known value Norm. dev. of median from known value 66.29 140.10 19627.35 211.33 35.29 0.12 50.67 3.40 0.01 Grand Avg 50.81 3.13 9.82 6.17 3.69 0.58 50.67 3.40 0.53 14(8.8 %) More than 3 norm. S.D. 1O(6.3 %) Between 2 and 3 norm. S.D. 96(6O.O %) Within 1 norm. S.D. of known value 4O(25.O %) Between 1 and 2 norm. S.D. ------- 25 / 37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 1 Cesium-137 Lab A AE AF AH AI AJ AK AL AN AP AU AW AY AZ BA BB BC BG BH BI BK BL BM BN BO BW C CA CC CE CG CJ CK CM CO CP CQ cs ex D DD DE DG DH DL = 0 s V' Res. 1 43.0 49.0 51.0 52.0 50.0 50.0 51.0 50.0 52.0 48.0 51.0 57.0 52.0 49.0 50.0 52.0 67.0 53.0 64.0 50.0 52.0 52.0 48.0 44.0 54.0 49.0 55.0 45.0 48.0 50.0 56.0 53.0 62.0 51.0 53.0 50.0 56.0 50.0 54.0 Res. 2 44.0 50.0 49.0 53.0 50.0 50.0 50.0 49.0 51.0 48.0 49.0 57.0 46.0 48.0 50.0 52.0 48.0 53.0 65.0 51.0 50.0 51.0 51.0 46.0 50.0 48.0 53.0 53.0 53.0 52.0 51.0 54.0 . 61.0 52.0 52.0 50.0 58.0 50.0 42.0 Res. 3 43.0 53.0 52.0 52.0 50.0 50.0 40.0 50.0 52.0 50.0 49.0 58.0 44.0 44.0 50.0 51.0 52.0 53.0 64.0 49.0 52.0 51.0 51.0 47.0 51.0 48.0 55.0 53.0 44.0 51.0 47.0 51.0 63.0 53.0 54.0 50.0 60.0 50.0 48.0 No data submitted Insufficient data x = Exper. Sigma 0.58 2.08 1.53 0.58 0.00 0.00 6.08 0.58 0.58 1.15 1.15 0.58 4.16 2.65 0.00 0.58 10.02 0.00 0.58 1.00 1.15 0.58 1.73 1.53 2.08 0.58 1.15 4.62 4.51 1.00 4.51 1.53 1.00 1.00 1.00 0.00 2.00 0.00 6.00 Rng anal Normalized deviation (R + SR) Average (grand-avg) (known) Tag 0.118 0.473 0.354 0.118 0.000 0.000 1.570 0.118 0.118 0.236, 0.236 0.118 0.945 0.591 0.000 0.118 3.371 0.000 0.118 0.236 0.236 0.118 0.354 0.354 0.473 0.118 0.236 0.945 1.120 0.236 1.120 0.354 0.236 0.236 0.236 0.000 0.473 0.000 1.795 43.33 50.67 50.67 52.33 50.00 50.00 47.00 49.67 51.67 48.67 49.67 57.33 47.33 47.00 50.00 51.67 55.67 53.00 64.33 50.00 51.33 51.33 50.00 45.67 51.67 48.33 54.33 50.33 48.33 51.00 51.33 52.67 62.00 52.00 53.00 50.00 58.00 50.00 48.00 TAG SYMBOLS Determined to be an outlier -2.59 -0.05 -0.05 0.53 -0.28 -0.28 -1.32 -0.39 0.30 -0.74 -0.39 2.26 -1.20 -1.32 -0.28 0.30 1.68 0.76 4.69 -0.28 0.18 0.18 -0.28 -1.78 0.30 -0.86 1.22 -0.16 -0.86 0.07 0.18 0.64 3:88 0.41 0.76 -0.28 2.49 -0.28 -0.97 ft = Above U = Below -1.96 0.58 0.58 1.15 0.35 0.35 -0.69 0.23 0.92 -0.12 0.23 2.89 -0.58 -0.69 0.35 0.92 2.31 1.39 5.31 x 0.35 0.81 0.81 0.35 -1.15 0.92 -0.23 1.85 * 0.46 -0.23 0.69 0.81 1.27 4.50 x 1.04 » 1.39 0.35 3.12 IT 0.35 -0.35 control limit control limit -4/ ------- CRD-LV Performance Evaluation : Gamma in Water, 3-Nov-1995 26 / 37 ] Cesium-137 Lab DM DO DR DT DZ E EA EB EL EW EX EZ FJ FK FL FU FZ GE GI GL GQ m HJ HK HL HP HX I 1C J JE JG JI JS JY K KH KL KX L LE LF LR LT M = 0 = Res. 1 45.0 49.0 49.0 54.0 57.0 51.0 50.0 50.0 * ' 52.0 42.0 51.0 54.0 45.0 55.0 44.0 47.0 52.0 56.0 54.0 52.0 55.0 52.0 50.0 51.0 52.0 50.0 53.0 51.0 54.0 51.0 53.0 59.0 51.0 49.0 54.0 57.0 48.0 52.0 52.0 51.0 Res. 2 46.0 55.0 48.0 54.0 51.0 50.0 49.0 50.0 54.0 51.0 51.0 53.0 49.0 51.0 49.0 50.0 52.0 59.0 49.0 54.0 55.0 53.0 50.0 48.0 51.0 50.0 53.0 55.0 50.0 58.0 51.0 62.0 49.0 52.0 57.0 55.0 51.0 50.0 52.0 49.0 Res. 3 48.0 58.0 53.0 49.0 55.0 51.0 48.0 52.0 51.0 50.0 49.0 51.0 50.0 48.0 48.0 50.0 51.0 57.0 48.0 51.0 55.0 53.0 49.0 43.0 52.0 49.0 51.0 56.0 54.0 52.0 53.0 58.0 50.0 48.0 58.0 54.0 49.0 50.0 54.0 46.0 No data submitted Insufficient data x = Exper. Sigma 1.53 4.58 2.65 2.89 3.06 0.58 1.00 1.15 1.53 4.93 1.15 1.53 2.65 3.51 2.65 1.73 0.58 1.53 3.21 1.53 0.00 0.58. 0.58 4.04 0.58 0.58 1.15 2.65 2.31 3.79 1.15 2.08 1.00 2.08 2.08 1.53 1.53 1.15 1.15 2.52 Rng anal (R + SR) Average 0.354 1.120 0.591 0.591 0.709 0.118 0.236 0.236 0.354 1.120 0.236 0.354 0.591 0.827 0.591 0.354 0.118 0.354 0.709 0.354 0.000 0.118 0.118 0.945 0.118 0.118 0.236 0.591 0.473 0.827 0.236 0.473 0.236 0.473 0.473 0.354 0.354 0.236 0.236 0.591 46.33 54.00 -~ ! , *' ~-!- - ,s- i :* ; 50.00 52.33 54.33 50.67 49.00 50.67 - 52.33 47.67 50.33 52.67 48.00 51.33 47.00 49.00 51.67 57.33 50.33 52.33 55.00 52.67 49.67 47.33 51.67 49.67 52.33 54.00 52.67 53.67 52.33 59.67 50.00 49.67 56.33 55.33 49.33 50.67 52.67 48.67 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) (known) Tag -1.55 1.11 'Xi*^^V <:^ -0.28 0.53 1.22 -0.05 -0.63 -0.05 0.53 -1.09 -0.16 0.64 -0.97 0.18 -1.32 -0.63 0.30 2.26 -0.16 0.53 1.45 0.64 -0.39 -1.20 0.30 -0.39 0.53 1.11 - 0.64 0.99 0.53 3.07 -0.28 -0.39 1.91 1.57 -0.51 -0.05 0.64 -0.74 IT s Above ^ = Below -0.92 1.73 - <^;;Tv\ '.'-. 0.35 1.15 1.85 0.58 0.00 0.58 « 1.15 -0.46 0.46 1.27 * -0.35 0.81 -0.69 0.00 0.92 2.89 0.46 1.15 2.08 1.27 0.23 -0.58 0.92 0.23 1.15 1.73 1.27 1.62 1.15 3.70 IT 0.35 0.23 2.54 2.19 0.12 0.58 1.27 -0.12 control limit control limit ------- 27 / 37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 Cesium-137 Lab MA ML MP MQ MV MX MY N NH NJ NK NO NP NZ O OA OB OK OL OM 02 P PB PE PI PM PQ PU PV PW Q QJ QM QP QT QU QW QX QZ R RF RH RL RO RR = 0 = Res. 1 52.0 52.0 50.0 52.0 54.0 51.0 49.0 51.0 56.0 49.0 54.0 49.0 51.0 45.0 54.0 51.0 50.0 49.0 56.0 45.0 51.0 47.0 50.0 59.0 49.0 52.0 54.0 59.0 51.0 53.0 45.0 46.0 51.0 47.0 Res. 2 54.0 55.0 51.0 55.0 48.0 51.0 48.0 52.0 56.0 48.0 55.0 55.0 49.0 45.0 57.0 50.0 55.0 51.0 57.0 50.0 51.0 47.0 51.0 50.0 48.0 52.0 51.0 62.0 49.0 56.0 47.0 48.0 49.0 46.0 Res. 3 52.0 53.0 53.0 54.0 51.0 50.0 49.0 54.0 55.0 46.0 55.0 51.0 51.0 45.0 57.0 50.0 52.0 48.0 57.0 47.0 49.0 48.0 54.0 46.0 44.0 53.0 50.0 62.0 52.0 53.0 45.0 47.0 53.0 49.0 No data submitted Insufficient data x = Exper. Sigma 1.15 1.53 1.53 1.53 3.00 0.58 0.58 1.53 0.58 1.53 0.58 3.06 1.15 0.00 1.73 0.58 2.52 1.53 0.58 2.52 1.15 0.58 2.08 6.66 2.65 0.58 2.08 1.73 1.53 1.73 1.15 1.00 - 2.00 1.53 Rng anal Normalized deviation (R + SR) Average (grand-avg) (known) Tag 0.236 0.354 0.354 0.354 0.709 0.118 0.118 0.354 0.118 0.354 0.118 0.709 0.236 0.000 0.354 0.118 0.591 0.354 0.118 0.591 0.236 0.118 0.473 2.020 0.591 0.118 0.473 0.354 0.354 0.354 0.236 0.236 0.473 0.354 52.67 / " 53.33 51.33 53.67 51.00 50.67 48.67 52.33 55.67 47.67 54.67 51.67 ' 50.33 45.00 56.00 50.33 52.33 49.33 56.67 47.33 50.33 47.33 51.67 51.67 47.00 52.33 51.67 61.00 50.67 54.00 45.67 47.00 51.00 47.33 TAG SYMBOLS Determined to be an outlier 0.64 0.88 0.18 0.99 ' '--.' " " ' v 0.07 -0.05 -0.74 0.53 1.68 -1.09 1.34 0.30 -0.16 -2.01 1.80 -0.16 0.53 -0.51 2.03 -1.20 -0.16 -1.20 0.30 0.30 -1.32 0.53 0.30 3.53 -0.05 1.11 -1.78 -1.32 0.07 -1.20 It & Above U. s Below 1.27 v. , ,,, , ( 9 , 1.50 0.81 *' 1.62 , 0.69 0.58 -0.12 * 1.15 2.31 -0.46 1.96 '' 0.92 0.46 » -1.39 2.42 0.46 1.15 0.12 2.66 -0.58 0.46 -0.58 0.92 » 0.92 -0.69 1.15 0.92 4.16 ft 0.58 1.73 -1.15 -0.69 ' 0.69 -0.58 control limit control limit ------- CRD-LV Performance Evaluation : Gamma in Water, 3-Nov-1995 t 28/37 Cesium-137 Lab RU RV RX RZ S sc SD SF SI SM SN SR ss ST sv sx sz T TB TC TD TH TI TL TO TQ TR TS U UE UM UN UP UR UT UW UX UY VA VC VE VG VH VI VM = 0 = V Res, 1 48.0 50.0 52.0 49.0 50.0 44.0 53.0 53.0 52.0 50.0 50.0 50.0 53.0 47.0 45.0 51.0 49.0 53.0 45.0 50.0 64.0 44.0 i t 45.0 46.0 53.0 V 53.0 50.0 117.0 1.0 49.0 46.0 49.0 48.0 38.0 48.0 54.0 51.0 Res. 2 49.0 46.0 53.0 50.0 47.0 47.0 53.0 53.0 50.0 55.0 51.0 50.0 54.0 46.0 44.0 52.0 50.0 46.0 52.0 51.0 52.0 49.0 50.0 43.0 53.0 \ - 55.0 50.0 124.0 1.0 47.0 46.0 50.0 45.0 45.0 45.0 51.0 52.0 Res. 3 48.0 55.0 50.0 50.0 49.0 50.0 49.0 50.0 49.0 54.0 51.0 49.0 54.0 52.0 44.0 52.0 48.0 50.0 51.0 51.0 58.0 53.0 46.0 44.0 53.0 56.0 50.0 121.0 1.0 46.0 47.0 53.0 44.0 42.0 52.0 48.0 50.0 No data submitted Insufficient data x = Exper. Sigma 0.58 4.51 1.53 0.58 1.53 3.00 2.31 1.73 1.53 2.65 0.58 0.58 0.58 3.21 0.58 0.58 1.00 3.51 3.79 0.58 6.00 4.51 2.65 1.53 0.00 1.53 0.00 3.51 0.00 1.53 0.58 2.08 2.08 3.51 3.51 3.00 1.00 Rnganal (R + SR) 0.118 1.120 0.354 0.118 0.354 0.709 0.473 0.354 0.354 0.591 0.118 0.118 0.118 0.709 0.118 0.118 0.236 0.827 0.827 0.118 1.795 1.120 0.591 0.354 0.000 0.354 0.000 0.827 0.000 0.354 0.118 0.473 0.473 0.827 0.827 0.709 0.236 Normalized deviation Average 48.33 50.33 51.67 49.67 48.67 47.00 51.67 52.00 50.33 53.00 '50.67 49.67 53.67 48.33 44.33 51.67 49.00 49.67 49.33 50.67 58.00 48.67 47.00 44.33 53.00 s _. 54.67 50.00 120.67 1.00 47.33 46.33 50.67 45.67 41.67 48.33 51.00 51.00 TAG SYMBOLS Determined to be an outlier (grand-avg) (known) Tag -0.86 -0.16 0.30 -0.39 -0.74 -1.32 0.30 0.41 -0.16 0.76 -0.05 -0.39 0.99 -0.86 -2.24 0.30 -0.63 \ ' -0.39 -0.51 -0.05 2.49 -0.74 -1.32 -2.24 0.76 « 1.34 -0.28 24.20 17.25 -1.20 -1.55 -0.05 -1.78 -3.17 - -0.86 0.07 0.07 ft = Above li = Below -0.23 0.46 0.92 0.23 -0.12 -0.69 0.92 1.04 0.46 1.39 0.58 0.23 1.62 -0.23 -1.62 0.92 0.00 . it':, ' ' 0.23 0.12 0.58 3.12 ft -0.12 -0.69 -1.62 1.39 1.96 0.35 24.83 x -16.63 x -0.58 -0.92 0.58 -1.15 -. .':".'-."."". ,- A -., . ''*' -2.54 ' ;.4'..;,":,jx.- ' -0.23 0.69 0.69 control limit control limit v ------- 29/37 CRD-LV Performance Evaluation: Gamma Cesium-137 Lab Res. 1 Res. 2 VO 52.0 53.0 VS 48.0 53.0 IVT * "-'' W 53.0 50.0 WD 49.0 48.0 WF* 90.0 90.0 WI . ' ;*' - ' > WJ 440.0 432.0 WK 1743,0 1752.0 WL 334,0 286.0 WO = 9LO 77.0 X 59.0 56.0 Exper. Rng anal Res. 3 Sigma (R + SR) 53.0 0.58 0.118 49.0 2.65 0.591 52.0 1.53 0.354 50.0 1.00 0.236 90.0 0.00 0.000 439.0 4.36 ', 0.945 1793.0 26.65 10.346 312.0 24.03 9.896 . 93.0 8.72 2.695 59.0 1.73 0.354 in Water, 3-Nov-1995 Normalized deviation Average (grand-avg) (known) 52.67 0.64 1.27 50.00 -0.28 0.35 s -. 51.67 0.30 0.92 49.00 -0.63 0.00 90.00 1&58 14.20 437.00 133.78 134.41 1762:67 593,01 593.63 310.67 90.02 90:64 ^ 87.00 : 12.54 13.16 58.00 2.49 3.12 Tag "' x X , *" ' X / "X : ft Data sorted by Laboratory Average Average Tag 1.00 x 41.67 43.33 44.33 44.33 45.00 45.67 45.67 45.67 46.33 46.33 47.00 47.00 47.00 47.00 47.00 47.00 47.00 47.33 47.33 47.33 47.33 47.33 47.33 47.67 47.67 48.00 48.00 48.33 = No data submitted 0 = Insufficient data Lab Average Tag UT 48.33 VE 48.33 A 48.33 TR 48.33 SX 48.67 PB 48.67 VA 48.67 RF 48.67 C 48.67 UX 49.00 DM 49.00 TQ 49.00 SC 49.00 RH 49.33 QT 49.33 GI 49.33 BA 49.67 AL 49.67 UW 49.67 RR 49.67 Q 49.67 . PV 49.67 I 49.67 AZ 49.67 OA 50.00 EZ 50.00 FZ 50.00 DL 50.00 VH 50.00 TAG SYMBOLS Lab Average Tag SV 50.00 RU 50.00 CK 50.00 CC 50.00 TL 50.00 S 50.00 NJ 50.33 M 50.33 AU 50.33 WD 50.33 T 50.33 GL 50.33 EB 50.33 TD 50.33 PQ 50.67 LF 50.67 TC 50.67 SR 50.67 RZ 50.67 KX 50.67 J 50.67 HX 50.67 AW 50.67 AN 50.67 VS 51.00 UP 51.00 KL 51.00 DT 51.00 DH 51.00 ft = Above control x = Determined to be an outlier li = Below control Lab DE BO BL BB AK AJ SI RV PW PI OM HJ FJ CJ UY TH SN QZ NH LR EL EA AF AE VM VI RO N CM limit limit ------- CRD-LV Cesium-137 Average Tag 51.33 51.33 51.33 51.33 51.33 51.67 51.67 51.67 51.67 51.67 51.67 51.67 51.67 51.67 51.67 51.67 51.67 51.67 52.00 52.00 52.33 52.33 52.33 52.33 % responding labs in. IU' ------- - - - ° -6 ' -'4 % responding labs iu- -6 -4 = No data submitted 0 3 Insufficient data Performance Evaluation: Gamma in Water, 3-Nov-1995 Data sorted by Laboratory Average Lab Average Tag Lab Average MQ 52.33 JE 54.33 GE 52.33 HK 54.67 CP 52.33 EX 54.67 BN 52.33 DZ 55.00 BM 52.33 AH 55.33 W 52.67 VO 55.67 SZ 52.67 MA 55.67 SD 52.67 LT 56.00 RX 52.67 JS 56.33 QW 52.67 HP 56.67 QP 52.67 FL 57.33 QJ 52.67 CQ 57.33 OL 53.00 U 58.00 1C 53.00 SM 58.00 GQ 53.00 DD 58.00 CA 53.00 BH 59.67 BC 53.33 MP 61.00 AP 53.67 SS 62.00 SF 53.67 MX 64.33 CX 53.67 JY 87.00 QU 54.00 R 90.00 PM 54.00 JG 120.67 NO 54.00 DO 310.67 K 54.33 E 437.00 1762.67 Frequency distribution _ ------------------ »i- £ 1 * ill II _ T - fllllllllll.-.-- _ -2 6 +2 Normalized deviation of the mean from the known value Frequency distribution 1 .ll.l.. --. T __ -2 0 +2 Normalized deviation of the mean from the grand average TAG SYMBOLS ft s x = Determined to be an outlier li s Tag ft ft ft ft ft X X X X X X X X +4 +4 Above Below 30/37 1 Lab CE UN OB HL LE O BG PE L PU HI AY X TI DG KH QX CS BK WO WF UR WL WJ WK I ' +6 i +6 control limit control limit . / ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 31/37 Barium-133 Statistical Summary 193 Participants The known value of this nuclide is 99.0 pCi/1 with an expected precision of 10.0; the control limits are 81.7 to 116.3; the warning regions are 81.7 to 87.4 and 110.6 to 116.3 36(18.7 %) Failed to respond -. 4(2.1 %) Outliers-' 2(1.0 %) Out of control' but not an outlier Statistic . 135(69.9 %) Within all limits Respondents - 16(8.3 %) In warning zone but within control Non-outliers Mean Std. Dev. Variance %Coef. ofVar. % deviation of mean from known value Norm. dev. of mean from known value Median % deviation of median from known value Norm. dev. of median from known value 103.69 78.47 6157.64 75.68 4.74 0.06 96.00 -3.03 -0.04 Grand Avg 95.64 6.59 43.47 6.89 -3.40 -0.51 96.00 -3.03 -0.46 6(3.8 %) More than 3 norm. S.D. -. 16(10.2 %) Between 2 and 3 norm. S.D. 9(56.7 %) Within 1 norm. S.D. of known value 46(29.3 %) Between 1 and 2 norm. S.D. ------- 32 / 37 CRD-LV Performance Evaluation : Gamma in Water, 3-Nov-1995 Barium- 133 Lab A AE AF AH AI AJ AK AL AN AP AU AW AY AZ BA BB BC BG BH BI BK BL BM BN BO BW C CA CC CE CG CJ CK CM CO CP CQ cs ex D DD DE DG DH DL Res. 1 89.0 96.0 93.0 99.0 96.0 90.0 97.0 92.0 94.0 92.0 90.0 103.0 113.0 106.0 86.0 85.0 97.0 92.0 ; :: * :- 111.0 99.0 99.0 89.0 93.0 95.0 , 103.0 89.0 104.0 94.0 86.0 101.0 95.0 101.0 105.0 86.0 102.0 91.0 92.0 94.0 105.0 Res. 2 85.0 99.0 97.0 98.0 "/ 99.0 92.0 108.0 106.0 90.0 98.0 90.0 102.0 101.0 100.0 94.0 86.0 96.0 92.0 112.0 100.0 99.0 89.0 96.0 91.0 97.0 88.0 102.0 92.0 86.0 101.0 107.0 97.0 106.0 87.0 102.0 92.0 95.0 95.0 100.0 Res. 3 76.0 101.0 93.0 100.0 96.0 89.0 99.0 92.0 91.0 99.0 86.0 104.0 95.0 103.0 90.0 86.0 84.0 93.0 112.0 100.0 99.0 92.0 95.0 91.0 98.0 87.0 93.0 88.0 88.0 96.0 98.0 100.0 105.0 90.0 102.0 92.0 90.0 95.0 105.0 = No data submitted 0 s ^ - Insufficient data X s Exper. Sigma 6.66 2.52 2.31 1.00 1.73 1.53 5.86 8.08 2.08 3.79 2.31 1.00 9.17 3.00 4.00 0.58 7.23 0.58 0.58 0.58 0.00 1.73 1.53 2.31 3.21 1.00 5.86 3.06 1.15 2.89 6.24 2.08 0.58 2.08 0.00 0.58 2.52 0.58 2.89 Rng anal Normalized deviation (R + SR) Average (grand-avg) (known) Tag 0.768 0.295 0.236 0.118 \ 0.177 0.177 0.650 0.827 0.236 0.413 0.236 0.118 1.120 0.354 0.473 0.059 0.768 0.059 0.059 0.059 0.000 0.177 0.177 0.236 0.354 0.118 0.650 0.354 0.118 0.295 0.709 0.236 0.059 0.236 0.000 0.059 0.295 0.059 0.295 83.33 98.67 94.33 99.00 97.00 90.33 101.33 96.67 91.67 96.33 88.67 103.00 103.00 103.00 90.00 85.67 92.33 92-33 111.67 99.67 99.00 90.00 94.67 92.33 99.33 88.00 99.67 91.33 86.67 99.33 100.00 99.33 105.33 87.67 102.00 91.67 92.33 94.67 103.33 TAG SYMBOLS Determined to be an outlier -2.13 0.52 -0.23 0.58 0.24 -0.92 0.99 0.18 -0.69 0.12 -1.21 1.28 1.28 1.28 -0.98 -1.73 -0.57 -0.57 2.78 0.70 0.58 -0.98 -0.17 -0.57 0.64 -1.32 0.70 -0.75 -1.55 0.64 0.76 0.64 1.68 -1.38 1.10 -0.69 -0.57 -0.17 1.33 tl & Above li = Below -2.71 -0.06 -0.81 0.00 '- * - -0.35 -1.50 0.40 -0.40 -1.27 -0.46 -1.79 0.69 0.69 0.69 -1.56 -2.31 -1.15 -1.15 . ' y^* 2.19 0.12 0.00 -1.56 -0.75 » -1.15 0.06 -1.91 0.12 -1.33 -2.14 0.06 > "'' "' ' 0.17 0.06 1.10 -1.96 -*\ - 0^52 -1.27 -1.15 -0.75 0.75 control limit control limit -y ------- CRD-LV Performance Evaluation Gamma in Water, 3-Nov-1995 33/37 Barium-133 Lab DM DO DR DT DZ E EA EB EL .EW/ EX EZ FJ IJ»W '" FK > FL FU- FZ GE GI GL GQ HI HJ HK HL HP HX I 1C J JE JG JI JS JY K KH KL KX L LE LF LR LT M Res. 1 86.0 99.0 89.0 101.0 95.0 98.0 84.0 94.0 ' - '"-Cr:-\:,i 97.0 111.0 97.0 , s,,^^^,. 109.0 , , , ,--,,>\, 95.0 97.0 85.0 94.0 96.0 100.0 99.0 92.0 100.0 101.0 96.0 85.0 96.0 105.0 94.0 78.0 ,\ 98.0 97.0 92.0 106.0 100.0 100.0 106.0 93.0 93.0 116.0 101.0 85.0 Res. 2 86.0 99.0 91.0 102.0 94.0 98.0 85.0 94.0 o- ,V~N ^ 101.0 105.0 100.0 '"-"\»..y>;i -,-- , > > s * _' 115.0 ."*»o ' 96.0 92.0 94.0 87.0 96.0 112.0 97.0 91.0 100.0 94.0 92.0 95.0 106.0 101.0 95.0 79.0 r"V " ,, 97.0 101.0 94.0 104.0 100.0 107.0 104.0 101.0 95.0 112.0 100.0 85.0 Res. 3 89.0 111.0 102.0 99.0 94.0 98.0 87.0 95.0 100.0 109.0 101.0 - - , ;% - » 99.0 " , , - «v> 91.0 97.0 95.0 92.0 96.0 116.0 94.0 90.0 100.0 94.0 93.0 86.0 99.0 102.0 95.0 82.0 -,X *'Y, ; 97.0 98.0 95.0 104.0 99.0 102.0 102.0 97.0 96.0 109.0 96.0 90.0 3 No data submitted 0 s Insufficient data X 3 Exper. Rng anal Normalized deviation Sigma (R + SR) Average (grand-avg) (known) Tag 1.73 6.93 7.00 1.53 0.58 0.00 1.53 0.58 2.08 3.06 2.08 \ " ''.. 8.08 V t ,--- >' ' ' 2.65 2.89 5.51 3.61 0.00 8.33 2.52 1.00 0.00 4.04 2.08 5.51 5.13 2.08 0.58 2.08 .;- V- - ' - 0.58 2.08 1.53 1.15 0.58 3.61 2.00 4.00 1.53 3.51 2.65 2.89 0.177 0.709 0.768 0.177 0.059 0.000 0.177 0.059 , ' .« 0.236 0.354 0.236 . 0.945 0.295 0.295 0.591 0.413 0.000 0.945 0.295 0.118 0.000 0.413 0.236 0.591 0.591 0.236 0.059 0.236 0.059 0.236 0.177 0.118 0.059 0.413 0.236 0.473 0.177 0.413 0.295 0.295 87.00 103.00 94.00 100.67 94.33 98.00 85.33 94.33 ~- -<." ;«v^u^; -- 99.33 108.33 99.33 "" - ""- "v"\ \\VT^-";-^- - \ \ 107.67 ' , rjYVvt-v 94.00 95.33 91.33 91.00 96.00 109.33 96.67 91.00 100.00 96.33 93.67 88.67 100.33 102.67 94.67 79.67 .. 7/.,.,,"V:C\.I T 97.33 98.67 93.67 104.67 99.67 103.00 104.00 97.00 94.67 112.33 99.00 86.67 TAG SYMBOLS Determined to be an outlier -1.50 1.28 -0.28 0.87 -0.23 0.41 -1.78 -0.23 ;..;- x\ 0.64 2.20 0.64 "V" '"-^" "s - l 2.08 * '" ' ' -0.28 -0.05 -0.75 -0.80 0.06 2.37 0.18 -0.80 0.76 0.12 -0.34 -1.21 0.81 1.22 -0.17 -2.77 "-t -' '; :, 0.29 0.52 -0.34 1.56 0.70 1.28 1.45 0.24 -0.17 2.89 0.58 -1.55 ft 3 Above li 3 Below -2.08 0.69 -0.87 0.29 -0.81 -0.17 -2.37 -0.81 -, ,>;\< , « 0.06 1.62 0.06 -. X "''\ u ^ / \ - V 1.50 ^"\<" :,-.; -0.87 -0.64 -1.33 -1.39 -0.52 1.79 -0.40 -1.39 0.17 -0.46 -0.92 -1.79 0.23 0.64 -0.75 -3.35 ji ,-" ;- . ,v ',»<-. -0.29 -0.06 -0.92 0.98 0.12 0.69 0.87 -0.35 -0.75 2.31 0.00 -2.14 control limit control limit ------- 34 / 37 CRD-LV Performance Evaluation Gamma in Water, 3-Nov-1995 .x Barium- 133 Lab MA ML MP MQ MV MX MY N NH NJ NK NO NP NZ O OA OB OK OL OM OZ P PB PE PI PM P9 S;-PU;i PV PW Q QJ QM QP QT QU QW QX QZ R RF RH RL RO RR Res. 1 106.0 107.0 99.0 101.0 93.0 86.0 87.0 100.0 100.0 , , , , ; , ., , , 104.0 95.0 ' > 84.0 104.0 90.0 89.0 97.0 80.0 92.0 89.Q 100.0 95.0 92.0 100.0 99.0 102.0 93.0 92.0 95.0 88.0 94.0 92.0 Res. 2 101.0 109.0 103.0 100.0 93.0 83.0 89.0 -» .... ..,.. , 99.0 97.0 * -, 98.0 95.0 85.0 104.0 90.0 99.0 99.0 92.0 93.0 92.0 100.0 87.0 95.0 100.0 100.0 105.0 94.0 93.0 89.0 89.0 86.0 89.0 Res. 3 101.0 108.0 101.0 102.0 94.0 89.0 90.0 ' 101.0 99.0 87.0 90.0 86.0 103.0 86.0 89.0 92.0 85.0 96.0 87.0 100.0 106.0 97.0 99.0 98.0 101.0 95.0 93.0 90.0 92.0 89.0 91.0 3 No data submitted 0 3 Insufficient data x = Exper. Rng anal Sigma (R + SR) Average 2.89 1.00 2.00 1.00 0.58 3.00 1.53 1.00 1.53 8.62 2.89 1.00 0.58 2.31 5.77 3.61 6.03 2.08 2.52 0.00 9.54 2.52 0.58 1.00 2.08 1.00 0.58 3.21 2.08 4.04 1.53 0.295 0.118 0.236 0.118 0.059 0.354 0.177 0.118 0.177 1.008 0.295 0.118 0.059 0.236 0.591 0.413 0.709 0.236 0.295 0.000 1.233 0.295 0.059 0.118 0.236 0.118 0.059 0.354 0.236 0.473 0.177 102.67 108.00 101.00 101.00 93.33 86.00 88.67 100.00 98.67 - 96.33 ' 93.33 85.00 103.67 88.67 92.33 96.00 85.67 93.67 89.33 100.00 96.00 94:67 99.67 99.00 102.67 94.00 92.67 91.33 89.67 89.67 90.67 TAG SYMBOLS Determined to be an outlier Normalized deviation (grand-avg) (known) Tag 1.22 s * - ' , 2.14 0.93 0.93 -0.40 -1.67 -1.21 - ' "' -1 ' 0.76 0.52 0.12 -0.40 -1.84 1.39 -1.21 -0.57 0.06 -1.73 -0.34 -1.09 0.76 0.06 -0.17 0.70 0.58 1.22 -0.28 -0.51 -0.75 -1.03 -1.03 -0.86 ft = Above U s Below 0.64 ''s * ,' '? 1.56 * -- 0.35 , * 0.35 -0.98 -2.25 - -1.79 -'» . ' ' - " ", » 0.17 -0.06 ' -0.46 -0.98 * /. * - -2.42 0.81 -1.79 -1.15 -0.52 * -2.31 -0.92 -1.67 0.17 v - -0.52 -0.75 0.12 0.00 0.64 -0.87 -1.10 -1.33 -1.62 ' -1.62 -1.44 control limit control limit ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 35/37 Barium- 133 Lab RU RV RX RZ S sc SD SF SI SM SN SR ss ST SV sx sz T TB TC TD TH TI TL TO TQ TR TS U UE UM. UN UP UR UT UW UX UY VA VC VE VG VH VI VM = 0 = Res. 1 98.0 110.0 98.0 95.0 97.0 86.0 88.0 99.0 95.0 98.0 92.0 97.0 107.0 98.0 101.0 92.0 94.0 98.0 92.0 96.0 101.0 93.0 90.0 92.0 95.0 87.0 91.0 61.6 32:6 101.0 82.0 106.0 94.0 95.0 : :<' ' ' 86.0 93.0 96.0 Res. 2 96.0 103.0 110.0 96.0 98.0 87.0 87.0 98.0 92.0 105.0 92.0 91.0 106.0 98.0 97.0 95.0 97.0 78.0 87.0 98.0 98.0 92.0 88.0 93.0 95.0 86.0 93.0 70.6 32,0 103.0 83.0 99.0 84.0 91.0 83.0 88.0 97.0 Res. 3 93.0 103.0 106.0 97.0 98.0 90.0 81.0 100.0 91.0 99.0 91.0 93.0 106.0 105.0 103.0 93.0 97.0 88.0 86.0 97.0 100.0 90.0 91.0 96.0 98.0 "- - " - 92.0 90.0 55;6 32.0 99.0 82.0 101.0 87.0 .' v .-'S::'?. 92.0 87.0 88.0 98.0 No data submitted Insufficient data x = Exper. Sigma 2.52 4.04 6.11 1.00 0.58 2.08 3.79 1.00 2.08 3.79 0.58 3.06 0.58 4.04 3.06 1.53 1.73 10.00 3.21 1.00 1.53 1.53 1.53 2.08 1.73 3.21 1.53 7.55 0.00 2.00 0.58 3.61 5.13 2.08 2.08 2.89 1.00 Rng anal (R + SR) 0.295 0.413 0.709 0.118 0.059 0.236 0.413 0.118 0.236 0.413 0.059 0.354 0.059 0.413 0.354 0.177 0.177 1.345 0.354 0.118 0.177 0.177 0.177 0.236 0.177 0.354 0.177 0.886 0.000 0.236 0.059 0.413 0.591 0.236 0.236 0.295 0.118 Average 95.67 105.33 104.67 96.00 97.67 87.67 85.33 99.00 92.67 100.67 91.67 93.67 106.33 100.33 100.33 93.33 96.00 88.00 88.33 97.00 99.67 91.67 89.67 93.67 96.00 88.33 91.33 £2:66 32.06 101.00 82.33 102.00 88.33 92.67 85.33 89.67 97.00 TAG SYMBOLS Determined to be an outlier Normalized (grand-avg) 0.01 1.68 1.56 0.06 0.35 -1.38 -1.78 0.58 -0.51 0.87 -0.69 -0.34 1.85 0.81 0.81 -0.40 0.06 -1.32 -1.26 0.24 0.70 -0.69 ., -1.03 -0.34 0.06 .. -1.26 -0.75 -5.83 4102 0.93 -2.30 1.10 -1.26 -0.51 - -1.78 -1.03 0.24 deviation (known) Tag -0.58 1.10 0.98 -0.52 -0.23 -1.96 -2.37 0.00 -1.10 0.29 -1.27 -0.92 1.27 0.23 0.23 -0.98 -0.52 -1.91 -1.85 -0.35 0.12 -1.27 ..,-, .' . -1.62 -0.92 '- -0.52 » -1.85 -1.33 -6.41 x -11.60 x 0.35 -2.89 0.52 -1.85 ^ . ''" -1.10 * -2.37 -1.62 -0.35 ft = Above control limit U- = Below control limit ------- 36/37 Barium Lab VO VR vs VT W WD WF WI WJ WK WL WO X CRD-LV Performance Evaluation: Gamma 133 Res. 1 Res. 2 97.0 98.0 98.0 99.0 99.0 96.0 103.0 101.0 77.0 77.0 * " , 896.0 900.0 89.0 88.0 751.0 544.0 115.0 118.0 82.0 93.0 Exper. Rng anal Res. 3 Sigma (R + SR) 109.0 6.66 0.709 . 101.0 1.53 0.177 94.0 2.52 0.295 95.0 4.16 0.473 77.0 0.00 0.000 912.0 8.33 0.945 87.0 1.00 0.118 656.0 103.62 22.384 113.0 2.52 0.295 84.0 5.86 0.650 in Water, 3-Nov-1995 Normalized deviation Average (grand-avg) (known) Tag 101.33 0.99 0.40 99.33 0.64 0.06 96.33 0.12 -0.46 99.67 0.70 0.12 77.00 -3.23 -3.81 902.67 139.78 139.20 88.00 -1.32 -1.91 650.33 96.08 95.49 115.33 3.41 2.83 86.33 -1.61 -2.19 » -.- u * X X Data sorted by Laboratory Average Average 32.00 62.00 77.00 79.67 82.33 83.33 85.00 85.33 85.33 85.33 85.67 85.67 86.00 86.33 86.67 86.67 87.00 87.67 87.67 88.00 88.00 88.00 88.33 88.33 88.33 88.67 88.67 88.67 88.67 s No Tag X X U U data submitted 0 = Insufficient data Lab UT UR WF JG UX A PB VH SD EB PV BC NJ X M CK DM SC CX WK TC CC VA UN TD PI NO I AW Average Tag 89.33 89.67 89.67 89.67 89.67 90.00 90.00 90.33 90.67 91.00 91.00 91.33 91.33 91.33 91.33 91.67 91.67 91.67 91.67 92.33 92.33 92.33 92.33 92.33 92.67 92.67 92.67 93.33 93.33 TAG SYMBOLS Lab Q VI TQ RO RH BN BB AK RR HK GL UP RF GI CJ TL SN DE AP PM DG C BH BG VE SI R SZ OM Average Tag 93.33 93.67 93.67 93.67 93.67 93.67 94.00 94.00 94.00 94.33 94.33 94.33 94.67 94.67 94.67 94.67 94.67 95.33 95.67 96.00 96.00 96.00 96.00 96.00 96.00 96.33 96.33 96.33 96.33 ft = Above control x = Determined to be an outlier !) = Below control Lab NH TR SR PW K HX QZ FZ DT EL E AF QT LF JE DH BO GE RU U T RZ QP PQ GQ W OL HP AU limit limit ------- CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 Barium-133 Average Tag 96.67 96.67 97.00 97.00 97.00 97.00 97.33 97.67 98.00 98.67 98.67 98.67 99.00 99.00 99.00 99.00 99.00 99.33 99.33 99.33 99.33 99.33 99.33 % responding labs in. ___________ ° -6 ' -4 % responding labs IU" -6 -4 s No data submitted 0 = Insufficient data Data sorted by Laboratory Average Lab HJ AN VM TH LE AJ JS S EA OA JY AE SF QW LT BM AH VS FJ EX CQ CM CA Average Tag Lab 99.67 WD 99.67 TI 99.67 QU 99.67 KL 99.67 CE 99.67 BL 100.00 QJ 100.00 O 100.00 HL 100.00 CP 100.33 SX 100.33 SV 100.33 1C 100.67 SM 100.67 DZ 101.00 UW 101.00 N 101.00 MX 101.33 VO 101.33 AL 102.00 UY 102.00 DD 102.67 QX Average Tag 102.67 102.67 103.00 103.00 103.00 103.00 103.00 103.33 103.67 104.00 104.67 104.67 105.33 105.33 106.33 107.67 108.00 108.33 109.33 111.67 112.33 115.33 650.33 x 902.67 x Frequency distribution _ _. II _ . .iilillliLlliL. . -2 0 +2 +4 Normalized deviation of the mean from the known value Frequency distribution _ .. __ _ __ |. .Illllllll-llll.. T. . _ -2 0 +2 +4 Normalized deviation of the mean from the grand average TAG SYMBOLS fl = Above x = Determined to be an outlier U s Below - - 1 37/37 Lab MA J KX DO BA AZ AY DL PE L RX KH RV CS ss FL MP EZ m BK LR WO WL WJ lim +6 ffii +6 control limit control limit ------- |