本标准规定了最佳表面光洁度O型环填料和垫圈的检查要求和验收标准。（这本身不是O形圈规格）。本标准必须与O形圈图纸和/或材料规范结合使用。本标准仅在有严格性能要求的情况下规定。

This standard establishes the inspection requirements and acceptance standards for optimum surface finish O-ring packings and gaskets. (This is not an O-ring specification per se). This standard must be used in conjunction with an O-ring drawing and/or material specification. This standard is to be specified only where stringent performance requirements are necessary.