ASTM-D4620 2021

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D4620-02(2021) Standard Test Method for Evaluating the Effective Surface Area of Zinc Oxide in Rubber

Published By	Publication Date	Number of Pages
ASTM	2021

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Category: ASTM

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Description

ASTM D4620-02-Reapproved2021

Active Standard: Standard Test Method for Evaluating the Effective Surface Area of Zinc Oxide in Rubber

ASTM D4620

Scope

1.1 This test method specifies the standard materials, mixing procedure, and test method for ranking zinc-oxide samples according to their specific surface area in a standard test formula based on chloroprene rubber (CR).

1.2 The ranking is based on the cure time of the standard CR formulation.

1.3 The accurate surface area cannot be determined by this test method, since factors other than surface area may influence the cure times to some extent (for example acidity, heavy metal traces, etc.).

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

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

1.6 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.

Keywords

curemeter; surface area; zinc oxide ;

ICS Code

ICS Number Code 83.060 (Rubber)

DOI: 10.1520/D4620-02R21

Additional information

Standard Title	D4620-02(2021) Standard Test Method for Evaluating the Effective Surface Area of Zinc Oxide in Rubber
Published Code	ASTM
Publication Date	2021