추출

This guide covers a standard method for selecting a sampling plan for checking the electrodeposition of metallic and inorganic coatings on products, with the aim of determining whether the submitted lot complies with the specifications applicable to coatings. The characteristics of the sampling plan are expressed in terms of acceptable quality level (AQL), restricted quality level (LQL), average efferent quality (AOQ), and average efferent quality limit (AOQL). General procedures and criteria for constructing and selecting sampling plan types, selecting specific plans, selecting inspection lots, sample sampling and inspection, and lot disposal are discussed in full.

이 요약은 참조 표준에 대한 간략한 개요입니다.. 이는 단지 참조용일 뿐이며 표준의 공식적인 부분은 아닙니다.; 사용 및 적용을 위해서는 표준 자체의 전문을 참조해야 합니다.. ASTM은 어떠한 종류의 보증도 하지 않습니다., 명시적이든 묵시적이든, 본 초록의 내용이 정확하다는 것을 나타내지 않습니다., 완전하거나 새로운.

ASTM B697-88-2016 전착된 금속 및 무기 코팅 검사를 위한 샘플링 방식 선택을 위한 표준 가이드

단계 1: 범위

1.1 This guide provides guidance on the selection of a sampling plan for examining electrodeposition of products and associated coatings to determine whether submitted batches of coated products comply with applicable specifications for coatings. This complements test method B602, provides more information about sampling inspections, and provides additional sampling plans for users who find limited plan options in test method B602.

1.2 When using a sampling plan, select and inspect items from a relatively small portion of the inspection lot. Based on the results, it is decided whether the inspection lot is satisfactory to the specification.

1.3 The Guide also contains several sampling plans. A plan is an attribute plan, 그건, in the application of the plan, each inspected item is classified as meeting or not meeting each coating requirement. Compare the number of nonconforming items to the maximum allowable quantity. The plan is simple and relatively few. Additional plans covering more cases and more complex plans are provided in references (1-7) at the end of this guide and MIL-STD-105.

1.4 Use acceptance sampling plan:

1.4.1 The inspection cost is high and the consequences of accepting nonconforming products are not serious.

1.4.2 When 100% check fatigue and boredom, errors may result. 이러한 경우, a sampling plan can provide greater protection than a 100% 점검.

1.4.3 Destructive tests are required during inspection. 여기, sampling inspection is used.

1.5 Another general type of acceptance sampling plan not covered by this guide is a variable plan, in which measurements of characteristics are analyzed by a statistical procedure. These plans, where applicable, can reduce inspection costs and improve quality protection. For planned information on variables, the test method is given to B762, MIL-STD-414, ANSI/ASQC Z1.9-1979 and references (1-2).