Common use of Analytical Quality Control Procedures Clause in Contracts

Analytical Quality Control Procedures. All analyses for this program will be performed using accepted laboratory procedures in accordance with the specified analytical protocols. Adherence to prescribed QC procedures for the EPA Methods used for this test program will ensure data of consistent and measurable quality. Analytical QC will focus on the use of control standards to provide a measure of analytical precision and accuracy. Reagent blanks and laboratory blanks will be used to check for contamination. Calibration procedures vary by analyzer. Each standard curve is run in duplicate and the mean values are used to calculate the calibration line. Also, specific acceptance criteria are defined below for various analytical operations, including, without limitation, calibrations, control standard analyses, drift checks, and blanks. Table 6-1 Quality Control Samples Test Method and QC Sample Criterion QC Limits EPA Methods 7E Analyzer Calibration Error Less than 2% of the span Sampling System Bias Less than 5% of span Zero Drift Less than 3% of span Calibration Drift Less than 3% of span