GB/T 40681.4-2021
ActiveStatistical methods in monitoring process capability and performance—Part 4: Process capability estimates and performance measures
生产过程能力和性能监测统计方法 第4部分：过程能力估计和性能测量
Application Summary AI generated
This standard specifies methods for estimating process capability indices (e.g., Cp, Cpk) and performance measures (e.g., Pp, Ppk) to assess whether a production process can consistently meet specification limits. It is applied in manufacturing industries, such as automotive, electronics, and machinery, for quality control during production runs, process validation, and supplier capability audits. The standard is used by engineers and quality professionals to evaluate process stability, identify improvement needs, and make data-driven decisions in both short-term and long-term production contexts.
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