ASTM-D543 Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents

ASTM-D543 - 2020 EDITION - CURRENT
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Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents
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Scope

1.1 These practices cover the evaluation of all plastic materials including cast, hot-molded, cold-molded, laminated resinous products, and sheet materials for resistance to chemical reagents. These practices include provisions for reporting changes in weight, dimensions, appearance, and strength properties. Standard reagents are specified to establish results on a comparable basis. Provisions are made for various exposure times, stress conditions, and exposure to reagents at elevated temperatures. The type of conditioning (immersion or wet patch) depends upon the end-use of the material. If used as a container or transfer line, specimens should be immersed. If the material will only see short exposures or will be used in close proximity and reagent may splash or spill on the material, the wet patch method of applying reagent should be used.

Note 1—These practices are related to ISO 175. Method B is similar to ISO 4599-1986(E). An ISO standard is under development that requires specific procedures for reporting the change in mechanical propertie after chemical exposure.

1.2 The effect of chemical reagents on other properties shall be determined by making measurements on standard specimens for such tests before and after immersion or stress, or both, if so tested.

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

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 7.

Keywords

chemical reagent; dimensional changes; exposure; mechanical property changes; plastics; stress

To find similar documents by ASTM Volume:

08.01 (Plastics (I): D256 - D3159)

To find similar documents by classification:

83.080.01 (Plastics in general)

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Document Number

ASTM-D0543-20

Revision Level

2020 EDITION

Status

Current

Modification Type

Revision

Publication Date

Feb. 1, 2020

Document Type

Practice

Page Count

8 pages

Committee Number

D20.50