ASTM-D4620 Standard Test Method for Evaluating the Effective Surface Area of Zinc Oxide in Rubber

ASTM-D4620 - 2002 R21 EDITION - CURRENT
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Standard Test Method for Evaluating the Effective Surface Area of Zinc Oxide in Rubber
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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, agreement of test results between laboratories).

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 problems, 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.

Keywords

CR (chloroprene rubber); Cure activation; Effective surface area; Nitrogen absorption; Rubber-general; Surface analysis-rubber chemicals/materials; Vulcanization characterist; Zinc oxide; effective surface area-zinc-oxide in rubber, test

To find similar documents by ASTM Volume:

09.01 (Rubber, Natural and Synthetic -- General Test Methods; Carbon Black)

To find similar documents by classification:

83.060 (Rubber Raw rubber, see 83.040.10)

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Document Number

ASTM-D4620-02R21

Revision Level

2002 R21 EDITION

Status

Current

Modification Type

Revision

Publication Date

Dec. 30, 2021

Document Type

Test Method

Page Count

2 pages

Committee Number

D11.20