scope:

This Standard specifies procedures for determining the decrease in counterforce exerted by vulcanized or thermoplastic rubber which has been subjected to the specified compression or tensile deformation and maintained in the specified environment (not less than the standard laboratory temperature). Testing at temperatures below standard laboratory temperature can be conducted; however, the reliability of the results is not proven.

NOTE The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows.

ISO 3384-1 : 2019 Rubber, vulcanized or thermoplastic - Determination of stress relaxation in compression - Part 1: Testing at constant temperature (MOD)

In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.

WARNING 1 Persons using this Standard should be familiar with normal laboratory practice. 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.

WARNING 2 Certain procedures specified in this Standard might involve the use or generation of substances, or the generation of waste, that could constitute a local environmental hazard. Reference should be made to appropriate laws/regulations on safe handling and disposal after use.