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Introduction to MARLAP, Part II

Introduction to MARLAP, Part II. Presented to: EPA Science Advisory Board (SAB) Presenter: Mr. Ronald J. Swatski Representing: Department of the Army Duty Station: U.S. Army Center for Health Promotion and Preventive Medicine, Aberdeen Proving Ground, MD Date: April 23, 2002.

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Introduction to MARLAP, Part II

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  1. Introduction to MARLAP, Part II • Presented to: EPA Science Advisory Board (SAB) • Presenter: Mr. Ronald J. Swatski • Representing: Department of the Army • Duty Station: U.S. Army Center for Health Promotion and Preventive Medicine, Aberdeen Proving Ground, MD • Date: April 23, 2002

  2. MARLAP Overview • Who: For project planners, managers, and laboratory personnel • What: Provide guidance and framework to ensure radioanalytical data meet a project’s specific requirements and needs • How: Guidance for national consistency using a performance-based approach Making collective knowledge and experience in radioanalytical work widely available

  3. Objectives of MARLAP, Part II • Provide information resource for using a performance-based approach for radioanalytical laboratory work • Making collective knowledge and experience in radioanalytical work widely available

  4. MARLAP Part II MARLAP IS: • Written primarily for laboratory personnel • Consistent with ISO, ANSI, ASTM, and agency documents • Guidance on laboratory processes (advantage/disadvantage) MARLAP IS NOT: • Compilation of analytical methods • Sampling guidance

  5. Outline of Part II • Chapter 10, Field and Sampling Issues That Affect Laboratory Measurements [Generic issues: Containers, labeling, chain of custody. Matrix specific issues: Filtration, acidification, sediment, preservation] • Chapter 11, Sample Receipt, Inspection, and Tracking [Chain of Custody, Sample Inspection, Sample log-in and Tracking, Storage] • Chapter 12, Laboratory Sample Preparation [Grinding, filtering, sub-sampling for different matrices, contamination control] • Chapter 13, Sample Dissolution [Chemistry of dissolution, fusion, wet ashing and acid dissolution, microwave digestion]

  6. Chapter 14, Separation Techniques [Oxidation/reduction, solvent extraction, electrodeposition, coprecipitation, carriers/tracers, radiochemical equilibrium] • Chapter 15, Nuclear Counting Instrumentation [Alpha, beta, gamma, coincidence/low background, spectrometry, calibration, troubleshooting, non-nuclear instrumentation] • Chapter 16, Instrument Calibration and Test Source Preparation [Test source is the radioactive material introduced into the measurement instrument. Geometry, homogeneity, uncertainty, self-absorption, matrix and instrument factors] • Chapter 17, Data Acquisition, Reduction and Reporting [Counting by instrument type, data reduction, and reporting]

  7. Chapter 18, Laboratory Quality Control [Chapter uses the format of issue, discussion, excursions, and examples. Performance includes radiochemistry method, instrument, control charts, statistical test for QC results, e.g. instrument background or chemical/tracer yields] • Chapter 19, Measurement Statistics [Basic concepts, uncertainty, detection and quantification, distributions, example calculations] • Chapter 20, Waste Management in a Radioanalytical Laboratory [Type of waste, waste minimization, specific requirements, and contents of a laboratory waste management plan/certification plan]

  8. Appendices: a. Directed Planning Approaches b. The Data Quality Objective Process c. Measurement Quality Objectives for Method Uncertainty and Detection and Quantification Capability d. Content of Project Plan Documents e. Contracting Laboratory Services f. Laboratory Subsampling

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