ASTM-D4620 › 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