ASTM-D6956 2011

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D6956-11 Standard Guide for Demonstrating and Assessing Whether a Chemical Analytical Measurement System Provides Analytical Results Consistent with Their Intended Use

Published By	Publication Date	Number of Pages
ASTM	2011	12

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Categories: 71.040.40 - Chemical analysis, ASTM

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Description

1.1 This guide describes an approach for demonstrating the quality of analytical chemical measurement results from the application of a measurement system (that is, method or sequence of methods) to the analysis of environmental samples of soil, water, air, or waste. The purpose of such measurements can include demonstrating compliance with a regulatory limit, determining whether a site is contaminated above some specified level, or determining treatment process efficacy.

1.2 This guide describes a procedure that can be used to assess a measurement system used to generate analytical results for a specific purpose. Users and reviewers of the analytical results can determine, with a known level of confidence, if they meet the quality requirements and are suitable for the intended use.

1.3 This protocol does not address the general components of laboratory quality systems necessary to ensure the overall quality of laboratory operations. For such systems, the user is referred to International Standards Organization (ISO) Standard 17025 or the National Environmental Laboratory Accreditation Conference (NELAC) laboratory accreditation standards.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

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PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Significance and Use Limitations and Assumptions Outline of Approach
4	Bias
5	Precision
6	Sensitivity
7	Selectivity
8	Assessing Measurement System Suitability
9	Documentation X1. EXAMPLES ON THE ASSESSMENT OF LABORATORY DATA X1.1 Description of the Problem TABLE X1.1
10	X1.2 Assessing Measurement System Suitability against Measurement Quality Objectives X1.3 Assessing Measurement System Suitability against Data Quality Objectives X1.4 Interrelationship between Biasdqo and Total Variability of Sampling and Analytical Activities
11	TABLE X1.2

Additional information

Standard Title	D6956-11 Standard Guide for Demonstrating and Assessing Whether a Chemical Analytical Measurement System Provides Analytical Results Consistent with Their Intended Use
Published Code	ASTM
Publication Date	2011
Pages Count	12
ICS Codes	71.040.40 - Chemical analysis

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ASTM-D6956 2011

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