This standard specifies dimensional tolerance classes and tolerance values for molded, extruded and calendered compact rubber products, and also specifies the corresponding test methods required to determine compliance with this standard. The tolerances specified in this standard apply to vulcanizates and may also apply to products made of thermoplastic rubber. This standard does not apply to calendered composite products such as precision annular seals or tapes, or products coated with rubber coatings by gluing or pasting.
GB/T 3672.1-2002 history
2002GB/T 3672.1-2002 Rubber-Tolerances of products--Part 1: Dimensional tolerances