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This recommended practice provides a system for specifying significant requirements of automotive plastic parts or specimens taken from said parts. It should apply to parts only and not to the materials produced for the manufacture of parts used in the automotive and related industries.

This recommended practice provides a screening procedure for evaluating the susceptibility of plastics to environmental stress cracking by testing their resistance to pure solvents. This method can then be used to evaluate complex chemical mixtures with components identified as suspect, which are expected to be present in the polymer's environment. It is recommended that ASTM D 543, Resistance of Plastics to Chemical Reagents, also be conducted. This test evaluates chemical effects that cause changes in polymer weight, dimension, appearance or strength.

This SAE Recommended Practice provides a system for classification and specification for limited number of polyamides (nylons) used in the Automotive Industry. Based upon ASTM D 4066, it calls for additional descriptive characteristics and properties commonly used in the Automotive Industry. Recycled polyamides meeting requirements of this practice may be used interchangeably with virgin resins.

This SAE Recommended Practice provides a system for marking plastic parts to designate the type of material from which the part was fabricated.

This SAE Recommended Practice provides a system for marking plastic parts to designate the type of material from which the part was fabricated.

This SAE Recommended Practice provides a system for marking plastic parts to designate the type of material from which the part was fabricated.