{"id":375384,"date":"2024-10-20T02:43:21","date_gmt":"2024-10-20T02:43:21","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-21-30403747-dc\/"},"modified":"2024-10-26T04:45:49","modified_gmt":"2024-10-26T04:45:49","slug":"bsi-21-30403747-dc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-21-30403747-dc\/","title":{"rendered":"BSI 21\/30403747 DC"},"content":{"rendered":"

This part of ISO 3951<\/span><\/span> is primarily designed for use under the following conditions:<\/p>\n

    \n
  1. \n

    where the inspection procedure is to be applied to an isolated lot of discrete products all supplied by one producer using one production process;<\/p>\n<\/li>\n

  2. \n

    where only a single quality characteristic, x<\/i>, of this process is taken into consideration, which must be measurable on a continuous scale;<\/p>\n<\/li>\n

  3. \n

    where the quality characteristic, x<\/i>, is distributed according to a normal distribution or a close approximation to the normal distribution;<\/p>\n

    \n
    \n NOTE 1\n <\/div>\n

    The use of this part of ISO 3951<\/span><\/span> is applicable directly only when there is reason to believe that the distribution of measurements of the quality characteristic is normal (s. 11.1<\/span>). If normal distribution is not warranted, data can be transformed (s. 11.2<\/span>). In case of doubt, the responsible authority should be consulted.<\/p>\n<\/p><\/div>\n<\/li>\n

  4. \n

    where the quality characteristic can be measured without or with moderate measurement bias;<\/p>\n<\/li>\n

  5. \n

    where a contract or standard defines a lower specification limit, L<\/i>, an upper specification limit, U<\/i>, or both; an item is qualified as conforming if and only if its measured quality characteristic, x,<\/i> satisfies the appropriate one of the following inequalities:<\/p>\n

      \n
    1. \n

      x<\/i> \u2265 L (i.e. the lower specification limit is not violated);<\/p>\n<\/li>\n

    2. \n

      x<\/i> \u2264 U (i.e. the upper specification limit is not violated);<\/p>\n<\/li>\n

    3. \n

      x \u2265 L<\/i> and x<\/i> \u2264 U<\/i> (i.e. neither the lower nor the upper specification limit is violated).<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

      Inequalities 1) and 2) are called cases with a single specification limit and 3) a case with double specification limits.<\/p>\n

      Where double specification limits apply, it is assumed in this part of ISO 3951<\/span><\/span> that conformance to both specification limits is equally important to the integrity of the product. In such cases, it is appropriate to apply a single LQ to the combined percentage of a product outside the two specification limits. This is referred to as combined control.<\/p>\n","protected":false},"excerpt":{"rendered":"

      BS ISO 3951-6. Sampling procedures for inspection by variables – Part 6. Specification for single sampling plans indexed by limiting quality (LQ) for isolated lot inspection for a single quality characteristic and a single LQ<\/b><\/p>\n\n\n\n\n
      Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
      BSI<\/b><\/a><\/td>\n2021<\/td>\n60<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":375392,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[97,2641],"product_tag":[],"class_list":{"0":"post-375384","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-03-120-30","7":"product_cat-bsi","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\/375384","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\/375392"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=375384"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=375384"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=375384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}