Laboratory Quality Assurance Sample Clauses

Laboratory Quality Assurance. The DEPARTMENT will ensure that laboratories serving dischargers in Alaska comply with the Discharge Monitoring Report-Quality Assurance (DMR-QA) Program. The DEPARTMENT will review and approve a laboratory’s quality assurance plan.

Laboratory Quality Assurance. Laboratory quality assurance is a very significant part of the project quality assurance plan. The laboratory’s quality assurance program should be generally consistent with: 1. The International Organization for Standardization “Guide 25: General Requirements for the Competence of Calibration and Testing Laboratories (ISO 25, 3rd edition, 1990)”, as amended, or 2. The quality standards outlined in the National Environmental Laboratory Accreditation Program, as amended, or 3. The quality standards outlined in the National Voluntary Laboratory Accreditation Program and Louisiana Environmental Laboratory Accreditation Program, as amended. 4. The quality standards outlined in the American Industrial Hygiene Association, Proficiency Analytical Testing Program for analysis of asbestos air samples. The laboratory performing the analytical methods should demonstrate that the data generated meets the intra-laboratory performance standards for the method and that the performance standards are sufficient to meet the bias, precision, sensitivity, representativeness, comparability and completeness, as specified in the project data quality objectives. 1. The bias of the method may be demonstrated through the use of reference materials, comparison to alternative methods or spiked samples. 2. The precision of the method may be determined by evaluation of relative standard deviation or the relative percent difference through the use of replicate analyses. 3. In order to address sensitivity requirements, the laboratory shall select a standard available analytical method that provides a method quantitation limit below the necessary level of required performance for purposes of assessment as well as demonstration of conformance with recognized State regulations. If it is not possible to achieve a sample quantitation limit below the necessary level of required performance, and the analyte of concern does not meet the conditions of the State regulations, then the laboratory shall select the standard available analytical method that provides the lowest possible sample quantitation limit for that analyte. 4. The method detection limit shall be verified after major instrument maintenance, a change in analyst or major changes in instrumentation or instrument conditions. The laboratory shall ensure and document an initial demonstration of proficiency for the analysis of each chemical of concern and each method used. The laboratory shall also demonstrate and document, in a scientifi...

Laboratory Quality Assurance. 24 Are your laboratory instruments and equipment regularly checked for performance, accuracy, validity, etc? yes no (Describe frequency of checks and quality of results obtained):