Plastics Chemical Resistance Testing

ASTM D 543-95

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

ASTM D 471-98e2

Standard Test Method for Rubber Property-Effect of Liquids
This test procedure deals with the required methods to evaluate the comparative ability of rubber-like and rubber compositions to withstand the effect of liquids under severe conditions. It is designed for testing samples cut from fabric coated with vulcanized rubber, samples of vulcanized rubber cut from standard sheets, or finished articles of commerce.

ASTM D 1693-05

Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics
This test procedure deals with the determination of the susceptibility of ethylene plastics to environmental stress cracking. Under situations of stress and in the presence of environments such as wetting agents, soaps, detergents or oils, ethylene plastics may exhibit mechanical failure by cracking.

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