ASTM D7729 - 12(2018)e1

    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


      Format Pages Price  
    PDF 5 $48.00   ADD TO CART
    Hardcopy (shipping and handling) 5 $48.00   ADD TO CART



    1. Scope

    1.1 This practice describes a procedure for developing a graphical model of relative standard deviation versus concentration for 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 Committee D19 Adjunct DQCALC2 (a Microsoft Excel3-based tool).

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

    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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    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

    D1129 Terminology Relating to Water

    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 Documents

    VIM International Vocabulary of Metrology, Basic and General Concepts and Associated Terms, 3rd edition, JCGM 200:2008


    ICS Code

    ICS Number Code 17.020 (Metrology and measurement in general)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D7729-12R18E01

    Citation Format

    ASTM D7729-12(2018)e1, Standard Practice for Determining and Expressing Precision of Measurement Results, in the Analysis of Water, as Relative Standard Deviation, Utilizing DQCALC Software, ASTM International, West Conshohocken, PA, 2018, www.astm.org

    Back to Top