ASTM D7729 - 12

    Standard Practice for Determining and Expressing Precision of Measurement Results, in the Analysis of Water, as Relative Standard Deviation, Utilizing DQCALC Software

    Active Standard ASTM D7729 | Developed by Subcommittee: D19.02

    Book of Standards Volume: 11.01


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    1. Scope

    1.1 This Practice describes a procedure for developing a graphical model of relative standard deviation vs concentration for a analytical methods used in the analysis of water (methods that are subject to non-additive random errors) for the purpose of assigning a statement of noise or randomness to analytical results (commonly referred to as a precision statement), in either a manual or an automated fashion.

    1.2 Data analysis and modeling is done with D19 Adjunct DQCALC (an Excel based tool).

    1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.4 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 limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D6512 Practice for Interlaboratory Quantitation Estimate

    D7510 Practice for Performing Detection and Quantitation Estimation and Data Assessment Utilizing DQCALC Software, based on ASTM Practices D6091 and D6512 of Committee D19 on Water

    Other Standard

    InternationalVocabul Basic and General Concepts and Associated Terms, VIM, 3rd edition, JCGM 200:2008


    ICS Code

    ICS Number Code 17.020 (Metrology and measurement in general)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/D7729-12

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