Tianrui rohs instrument EDX1800B evaluation report

EDX1800B Stability Test Number of Tests Working Curve Cd Content (ppm) Pb Content (ppm) Hg Content (ppm) Br Content (ppm) CR Content (ppm) Pict 1 PE 136.8 98.7 29 788.2 104.4 2 PE 133 92.7 28.3 715.7 109.9 3 PE 134.5 98.2 26.7 799.7 108.1 4 PE 135.5 99.2 20.1 741 96.6 5 PE 144 90 27.5 768.6 95.3 Pict PictOld = 6 PE 133.7 96.1 24.4 804.5 91.1 7 PE 136.3 97.5 23 741.9 93.2 8 PE 141.9 92.6 27.8 807.2 96.9 9 PE 145.9 98.5 23.2 767.8 107.7 10 PE 137.1 91.4 23.4 801.7 91.4 PictOld PictOld Sn — standard deviation of n measurements

n - number of measurements

— The arithmetic mean of n measurements,

Relative deviation RSD is calculated by the following formula.

RSD= ×100%.
11 PE 137.3 91.3 28 815.9 96.8 12 PE 136.5 95.9 18.2 777.2 93.9 13 PE 136.3 95.3 24.1 801.8 108.8 14 PE 135.9 98 26.5 805.2 98.1 15 PE 128.9 96.5 23.9 780.1 107.3 16 PE 140.6 97.7 29.3 751.6 91.1 17 PE 140.2 101.2 26.3 763.9 105.5 18 PE 141.4 102.3 27 759.1 109.7 19 PE 147.5 94.3 25.1 798.1 93.6 20 PE 136 107 25.8 750.8 110 Average value of PictOld content (PPM) 137.97 96.72 25.38 777.00 100.47 Standard deviation of the overall evaluation measurement Sn(PPM) 4.42 4.00 2.82 26.98 7.10 3s value 13.26 12.01 8.47 80.95 21.29 Equivalent Relative Standard Deviation RSD (%) 3.20% 4.14% 11.13% 3.47% 7.06% Performance Evaluation Passed Qualified Passed Qualified Note: 1. ND represents less than or equal to 2 ppm. 2. X-ray fluorescence instrument analysis measured Data for surface testing.
3. Cr, Br is the total content of the element measured, if its display exceeds the standard does not mean VI price Cr and PBB, PBDE exceeds the standard. Standard Name: EC681k Each measurement time: 200S Date: 2013.7.06 Location: Laboratory Operator: QC19