{"id":2081,"date":"2020-08-28T15:38:29","date_gmt":"2020-08-28T15:38:29","guid":{"rendered":"https:\/\/gcttg.com\/2020\/08\/28\/que-signifie-niveau-de-qualite-acceptable-nqa-ou-aql-4-0-de-aami-pb70-2012\/"},"modified":"2021-06-29T19:53:07","modified_gmt":"2021-06-29T19:53:07","slug":"what-is-the-acceptable-quality-level-aql-4-0-in-aami-pb70-2012","status":"publish","type":"post","link":"https:\/\/gcttg.com\/en\/what-is-the-acceptable-quality-level-aql-4-0-in-aami-pb70-2012\/","title":{"rendered":"WHAT IS THE ACCEPTABLE QUALITY LEVEL AQL 4.0% IN AAMI PB70-2012 ?"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><h4>What is the AQL 4.0% and the RQL 20% mentioned in the AAMI PB70-2012 specification?<\/h4>\n<p>A statistical approach has been developed to limit the producer\u2019s risk (the highest defective rate considered acceptable in the process) and the consumer\u2019s risk (the highest defective rate accepted by the customer). This statistical approach introduces two parameters of quality level: AQL and RQL<\/p>\n<p>The AQL is defined as the Acceptance Quality Level expressed in % and the RQL is the Rejectable Quality Level also expressed in %. When those two parameters are part of a specification requirements, they imply that the tested finished goods must be submitted to a specific\u00a0<strong>sampling<\/strong>\u00a0<strong>plan<\/strong>\u00a0which depends on three parameters :<\/p>\n<ul>\n<li>Lot size<\/li>\n<li>Inspection type (tightened; normal; reduced)<\/li>\n<li>Inspection level (I; II; III)<\/li>\n<\/ul>\n<p>ANSI \/ AAMI PB70-2012 requires an AQL of 4.0% and an RQL of 20%.<\/p>\n<p>For the AQL of 4.0%, the standard ISO 2859-1 can be used to calculate the number of individual samples for various lot sizes.<\/p>\n<p>For this example, if the\u00a0<strong>lot size<\/strong>\u00a0is 1\u00a0000; 10\u00a0000 or 100\u00a0000 units, with a\u00a0<strong>Normal\u00a0<\/strong>inspection type and an inspection\u00a0<strong>Level II,\u00a0<\/strong>a look at Table 1 of the standard identifies the\u00a0<strong>sample size code letters.<\/strong><\/p>\n<p>For these lot sizes, the sample size code letters are\u00a0<strong>J, L and N<\/strong>, respectively for 1\u00a0000; 10\u00a0000 and 100\u00a0000 units.<\/p>\n<p>If a\u00a0<strong>single sampling plan<\/strong>\u00a0is used,\u00a0<strong>Table 2-A<\/strong>\u00a0of the standard indicates the number of samples (the sample size) to be inspected for the production evaluation. For this example, the sample size is respectively 80, 200 and 315 items.<\/p>\n<p>Finally, this Table 2-A also indicates the acceptable maximum number of defective specimens in the sampling plan to be compliant with an AQL 4.0%. For this example, the acceptable number of defective specimens is respectively 7; 14 and 21.<\/p>\n<div id=\"attachment_2082\" style=\"width: 978px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-2082\" class=\"wp-image-2082 size-full\" src=\"https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN.jpg\" alt=\"\" width=\"968\" height=\"253\" srcset=\"https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-200x52.jpg 200w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-300x78.jpg 300w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-400x105.jpg 400w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-500x131.jpg 500w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-600x157.jpg 600w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-700x183.jpg 700w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-768x201.jpg 768w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN-800x209.jpg 800w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Tableau-AQL-EN.jpg 968w\" sizes=\"(max-width: 968px) 100vw, 968px\" \/><p id=\"caption-attachment-2082\" class=\"wp-caption-text\">Figure 1 : Example of an AQL 4% test plan for a 1000 items lot size<\/p><\/div>\n<h5><\/h5>\n<p><img decoding=\"async\" class=\"wp-image-2084 aligncenter\" src=\"https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN.jpg\" alt=\"\" width=\"617\" height=\"347\" srcset=\"https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-200x113.jpg 200w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-300x169.jpg 300w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-400x225.jpg 400w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-500x281.jpg 500w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-600x338.jpg 600w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-700x394.jpg 700w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-768x432.jpg 768w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-800x450.jpg 800w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-1024x576.jpg 1024w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN-1200x675.jpg 1200w, https:\/\/gcttg.com\/wp-content\/uploads\/2020\/08\/Info-EN.jpg 1280w\" sizes=\"(max-width: 617px) 100vw, 617px\" \/><\/p>\n<p>If you have questions about this publication, please contact <a href=\"mailto:info@gcttg.com\">info@gcttg.com<\/a><\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":2084,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[77],"tags":[84,85,86,87,88,89,90],"class_list":["post-2081","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-acceptable-quality-level-en","tag-ansi-aami-pb70-en","tag-aql-4-en","tag-inspection-level-en","tag-iso-2859-1-en","tag-sample-size-code-letter-en","tag-single-sampling-plan-en"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/posts\/2081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/comments?post=2081"}],"version-history":[{"count":0,"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/posts\/2081\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/media\/2084"}],"wp:attachment":[{"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/media?parent=2081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/categories?post=2081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gcttg.com\/en\/wp-json\/wp\/v2\/tags?post=2081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}