Result for Frequency & Acceptance EPA Concentration Criteria** 1664A/B (indicate units) Not in EPA 1664A/B. For D7575, use lab Initial prepared standards and D7575: cal. Holding analyze at or after 28 stds. read back Time/ days. Do not use within +/-5% of Sample Prep Calibration true. Verified Standard Devices lin. cal. range Verification (CSD). Initial prior to and current cal. Study analysis: 200; 160; 120; 80; 40; 4; 1 mg/L. Initial prior to analysis; EPA 1664A/B: EPA 2, 1000 +/-10% at 2 mg, mg +/-0.5% at 1000 Initial D7575: 200; 160; 120; mg. Calibration 80; 40; 4; 1mg/L or D7575: cal. Stds. CSD. stds. read back within +/-5% of true. Not in EPA 1664A/B D7575: <1 Calibration mg/L Blank One each batch of 20 EPA 1664A/B: samples <5 mg/L. D7575: <MDL Method or <10% of Blank known conc. of associated test samples Permit Conc. Limit for Analyte† Before and after batch: EPA 1664A/B: EPA 1664A/B; 2, 1000 +/-10% at 2 mg, mg +/-0.5% at 1000 Initial Cal. D7575: OPR at 40 mg. Verification mg/L, do not use OPR CSD. reads back within +/-5% of true. Before and after batch: EPA 1664A/B; EPA 1664A/B: 2, 1000 +/-10% at 2 mg, mg +/-0.5% at 1000 Continuing D7575: OPR at 40 mg. Cal. mg/L, do not use D7575: OPR Verification CSD. reads back within +/-5% of true. One per 40 mg/L. HEM Recovery: Ongoing 78-114% Precision & Recovery (OPR)
Result for EPA 1664A/B Frequency & Concentration (indicate units) Acceptance Criteria** Initial Holding Time/ Sample Prep Verification Study Not in EPA 1664A/B. For D7575, use lab prepared standards and analyze at or after 28 days. Do not use Calibration Standard Devices (CSD). Initial prior to analysis: 200; 160; 120; 80; 40; 4; 1 mg/L. D7575: cal. stds. read back within +/-5% of true. Verified lin. cal. range and current cal. Initial Calibration Stds. Initial prior to analysis; EPA 2, 1000 mg D7575: 200; 160; 120; 80; 40; 4; 1mg/L or CSD. EPA 1664A/B: +/-10% at 2 mg, +/-0.5% at 1000 mg. D7575: cal. stds. read back within +/-5% of true. Calibration Blank Not in EPA 1664A/B D7575: <1 mg/L Method Blank One each batch of 20 samples EPA 1664A/B: <5 mg/L. D7575: <MDL or <10% of known conc. of associated test samples Permit Conc. Limit for Analyte† Initial Cal. Verification Before and after batch: EPA 1664A/B; 2, 1000 mg D7575: OPR at 40 mg/L, do not use CSD. EPA 1664A/B: +/-10% at 2 mg, +/-0.5% at 1000 mg. OPR reads back within +/-5% of true. Continuing Cal. Verification Before and after batch: EPA 1664A/B: 2, 1000 mg D7575: OPR at 40 mg/L, do not use CSD. EPA 1664A/B; +/-10% at 2 mg, +/-0.5% at 1000 mg. D7575: OPR reads back within +/-5% of true. Ongoing Precision & Recovery (OPR) One per 40 mg/L. HEM Recovery: 78-114%
performance-comparison-form_clean-matrix_for-og_2013.docx