ISO 3951-2:2006 变量检验用取样程序 第2部分：单一质量特性和单一AQL限制用遂批验收用列入验收质量限度（AQL）的单一取样计划用一般规范

标准编号：ISO 3951-2:2006

中文名称：变量检验用取样程序 第2部分：单一质量特性和单一AQL限制用遂批验收用列入验收质量限度（AQL）的单一取样计划用一般规范

英文名称：Sampling procedures for inspection by variables — Part 2: General specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality cha

发布日期：2006-04

标准范围

ISO 3951-2:2006规定了单次抽样计划的验收抽样系统，用于变量检验，并根据验收质量限（AQL）编制索引。ISO 3951-2:2006主要设计用于以下条件:检验程序适用于连续系列的离散产品，所有产品均由一个生产商使用一种生产工艺提供；产品项目的质量特征在连续范围内是可测量的；测量误差可忽略不计（即标准偏差不超过相应工艺标准偏差的10%）；生产是稳定的（在统计控制下），并且质量特征按照正态分布分布，至少是近似分布；其中，在多个质量特性的情况下，这些特性彼此独立，至少大致独立；合同或标准对每项质量特性规定了规格上限、规格下限或两者。

ISO 3951-2:2006 specifies an acceptance sampling system of single sampling plans for inspection by variables, indexed in terms of the Acceptance Quality Limit (AQL).ISO 3951-2:2006 is primarily designed for use under the following conditions: where the inspection procedure is to be applied to a continuing series of lots of discrete products all supplied by one producer using one production process; where the quality characteristics of the items of product are measurable on a continuous scale; where the measurement error is negligible (i.e. with a standard deviation no more than 10 % of the corresponding process standard deviation); where production is stable (under statistical control) and the quality characteristics are distributed, at least to a close approximation, according to normal distributions; where, in the case of multiple quality characteristics, the characteristics are independent of one another, at least approximately; where a contract or standard defines an upper specification limit, a lower specification limit, or both on each of the quality characteristics.

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