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About This Item

 

Full Description

1.1 This guide covers procedures for using the ASTM Standard Reference Blacks2 (SRBs) and the HT and INR Iodine Number Standards to continuously monitor the precision of those carbon black test methods for which reference values have been established. It also offers guidelines for troubleshooting various test methods.

1.2 This guide defines the environmental conditions that are required for laboratories that perform carbon black testing activities for those test methods under D24's jurisdiction.

1.3 This guide establishes procedures for the use of x-charts to continuously monitor those tests listed in Section 2 for within-lab precision (repeatability) and between-lab accuracy (reproducibility).

1.4 This guide provides a statistical procedure for improving test reproducibility when a laboratory cannot physically calibrate its apparatus to obtain the reference values of the ASTM reference blacks, within the ranges given in this guide.

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.

 

Document History

  1. ASTM D4821-19

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    Standard Guide for Carbon Black-Validation of Test Method Precision and Bias

    • Most Recent
  2. ASTM D4821-16


    Standard Guide for Carbon Black-Validation of Test Method Precision and Bias

    • Historical Version
  3. ASTM D4821-15


    Standard Guide for Carbon Black—Validation of Test Method Precision and Bias

    • Historical Version
  4. ASTM D4821-14


    Standard Guide for Carbon Black—Validation of Test Method Precision and Bias

    • Historical Version
  5. ASTM D4821-07e1


    Standard Guide for Carbon Black<char: emdash>Validation of Test Method Precision and Bias

    • Historical Version
  6. ASTM D4821-07


    Standard Guide for Carbon Black-Validation of Test Method Precision and Bias

    • Historical Version
  7. ASTM D4821-06


    Standard Guide for Carbon Black-Validation of Test Method Precision and Bias

    • Historical Version
  8. ASTM D4821-05


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version
  9. ASTM D4821-04


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version
  10. ASTM D4821-03a


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version
  11. ASTM D4821-03


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version
  12. ASTM D4821-01


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version
  13. ASTM D4821-01a


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version
  14. ASTM D4821-99


    Standard Guide for Carbon Black - ;Validation of Test Method Precision and Bias

    • Historical Version