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ASTM D 4821 : 2015

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

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

Available format(s)

Hardcopy , PDF

Superseded date

13-02-2015

Superseded by

ASTM D 4821 : 2016

Language(s)

English

Published date

01-01-2015

€74.48
Excluding VAT

Committee
D 24
DocumentType
Guide
Pages
13
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

1.1This 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.

1.2This 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).

1.3This 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.

ASTM D 1510 : 2019 Standard Test Method for Carbon Black—Iodine Adsorption Number
ASTM D 8043 : 2016 Standard Guide for Carbon Black—Shelf Life
ASTM D 6915 : 2017 : EDT 1 Standard Practice for Carbon Black—Evaluation of Standard Reference Blacks
ASTM D 2414 : 2018 : REV A Standard Test Method for Carbon Black—Oil Absorption Number (OAN)
ASTM D 3493 : 2018 : REV A Standard Test Method for Carbon Black—Oil Absorption Number of Compressed Sample (COAN)
ASTM D 3265 : 2019 Standard Test Method for Carbon Black—Tint Strength

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