1.1 本规程提供了报告橡胶或橡胶产品制造操作过程性能的计算程序和格式。 1.2 本规程专门用于最终产品的重要技术性能。 ====意义和用途====== 5.1 当（1）可能存在特殊的变化原因，以及（2）过程可能不处于统计控制状态时，本规程用于评估生产过程是否符合规范。该评估也可用于比较不同的制造操作是否符合规范。

1.1 This practice provides a calculation procedure and a format for reporting the process performance of a manufacturing operation for a rubber or rubber product. 1.2 This practice is specifically designed to be used for technically significant properties of the final product. ====== Significance And Use ====== 5.1 This practice is used to evaluate the conformance of a production process to specifications when (1) special causes of variation may be present, and (2) the process may not be in a state of statistical control. This evaluation may also be used to compare different manufacturing operations for conformance to specifications.