Specifies sampling plans and procedures that can be used to assess whether the quality level of an entity (lot, process, etc) conforms to a declared value. This Standard is identical with and reproduced from ISO 2859-4:2002. <\/p>\n
Scope<\/b><\/p>\n
This part of ISO 2859 establishes sampling plans and procedures that can be used to assess whether the quality level of an entity (lot, process, etc) conforms to a declared value. The sampling plans have been devised so as to obtain a risk of less than 5% of contradicting a correct declared quality level. The risk is 10% of failing to contradict an incorrect declared quality level which is related to the limiting quality ratio (see clause 4). Sampling plans are provided corresponding to three levels of discriminatory ability.
In contrast to the procedures in the other parts of ISO 2859, the procedures in this part of ISO 2859 are not applicable to acceptance assessment of lots. Generally, the balancing of the risks of reaching incorrect conclusions in assessment procedures will differ from the balancing in the procedures for acceptance sampling.
This part of ISO 2859 may be used for various forms of quality inspection in situations where objective evidence of conformity to some declared quality level is to be provided by means of inspection of a sample. The procedures are
applicable to entities such as lots, process output, etc. that allow random samples of individual items to be taken from the entity.
The sampling plans provided in this part of ISO 2859 are applicable, but not limited, to inspection of a variety of products such as
\u2014 end items;
\u2014 components and raw materials;
\u2014 operations;
\u2014 materials in process;
\u2014 supplies in storage;
\u2014 maintenance operations;
\u2014 data or records;
\u2014 administrative procedures.
The procedures are primarily intended to be used when the quantity of interest is the number or fraction of nonconforming items for which the inspected items are classified as conforming or nonconforming.
With minor changes, the procedures may also be used when the quantity of interest is the number of nonconformities or number of nonconformities per item. The necessary changes are:
\u2014 replacement of \u201cnumber of nonconforming items\u201d by \u201cnumber of nonconformities\u201d;
\u2014 replacement of \u201cpercent nonconforming items\u201d by \u201cnonconformities per 100 items\u201d.
In this case the values given in Tables 2 to 7 are only approximations.<\/p>\n","protected":false},"excerpt":{"rendered":"
Sampling procedures for inspection by attributes – Procedures for assessment of declared quality levels<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n AS<\/b><\/a><\/td>\n 2003-07-28<\/td>\n 25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":490175,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[97,2633],"product_tag":[],"class_list":{"0":"post-490163","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-03-120-30","7":"product_cat-as","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/490163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/490175"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=490163"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=490163"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=490163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}