基于优先分配原则的验收取样规程.第2部分:按属性验收取样用协调单个取样方案

[中文适用范围]： ISO 28598 的这一部分提供了属性抽样程序和单次抽样计划，用于由供应商、客户和/或第三方对同一批次进行连续独立检验。 ISO 28598 的这一部分涉及： ——供应商检验（最终检验、根据供应商要求进行产品认证）； ——客户检验（进货检验、监督、验收抽样）； ——第三方检验。 当仅需要一项检查时，ISO 28598 的这一部分也可能适用。 给出了单次抽样计划的目录，并按规范质量限值 (NQL) 进行索引。 ISO 28598 的这一部分提供了以下取样程序： ——成品； ——元件和离散物品； ——运营； ——离散物品及其生产过程； ——数据和记录。 属性抽样程序用于检验离散产品的独立批次或连续系列批次。 当给出规范质量限值 (NQL) 并以不合格百分比或每 100 件不合格品的百分比表示时，这些程序适用。 ISO 28598 的这一部分提供了供应商、客户和第三方验收抽样程序的协调系统。 它还适用于供应商单独或与客户达成协议在合同中指定以 NQL 表示的批次质量标准的情况。 无论哪种情况，它都提供了一种连贯的方法来指定批次对于装运和建议用途是否满意。 [外文原描述]： This part of ISO 28598 provides attributes sampling procedures and single sampling plans for successive independent inspections of the same lot conducted by the supplier, customer and/or a third party. This part of ISO 28598 addresses: - supplier inspection (final inspection, product certification upon supplier's request); - customer inspection (incoming inspection, surveillance, acceptance sampling); - third party inspection. This part of ISO 28598 may also be applicable when only one inspection is needed. A catalogue of single sampling plans is given, indexed by the normative quality limits (NQLs). This part of ISO 28598 provides sampling procedures for: - finished product; - components and discrete items; - operations; - discrete items and the processes that produce them; - data and records. Attributes sampling procedures are provided for inspection of an isolated lot or a continuing series of lots of a discrete product. These procedures are applicable when a normative quality limit (NQL) is given and expressed in terms of percent nonconforming or nonconformities per 100 items. This part of ISO 28598 provides a co-ordinated system of supplier, customer and third party acceptance sampling procedures. It is also applicable to the case where a supplier individually, or on agreement with a customer, in a contract, specifies a lot quality criterion expressed in terms of an NQL. In either case, it provides a coherent methodology for designating lots as satisfactory or unsatisfactory for shipment and proposed use.