{"id":8458,"date":"2024-07-23T20:00:00","date_gmt":"2024-07-23T18:00:00","guid":{"rendered":"https:\/\/www.examinechina.com\/?p=8458"},"modified":"2024-09-27T10:18:34","modified_gmt":"2024-09-27T08:18:34","slug":"aql-table","status":"publish","type":"post","link":"https:\/\/www.examinechina.com\/aql-table\/","title":{"rendered":"AQL table \u2013 a comprehensive guide"},"content":{"rendered":"\n<p>Sourcing from China involves many steps. One of the most important stages is supplier verification. If you decide to order from this supplier, it is important to check if the production goes smoothly. That is when inspection comes into the picture. AQL sampling is one of the most common inspection methods. The main AQL tool is an AQL chart. How to understand the AQL table?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is an AQL table for inspection?<\/h2>\n\n\n\n<p>AQL stands for <a href=\"https:\/\/www.examinechina.com\/aql-norm\/\">Acceptable Quality Limit<\/a>. The AQL table is a tool used in quality control processes to determine the maximum number of defective units. If there are too many defective units, the batch is rejected. Ordering AQL inspection ensures buyers that products meet certain quality standards before reaching the end consumer.<\/p>\n\n\n\n<p>Why do you need the AQL table? It helps balance the cost of inspection with the risk of accepting defective goods.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AQL Standards<\/h3>\n\n\n\n<p>AQL standards were established by organizations like ISO (International Organization for Standardization). They are international and used across many industries.<\/p>\n\n\n\n<p>There are some regulations that set AQL standards:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ISO 2859<\/li>\n\n\n\n<li>ANSI\/ASQC Z1.4<\/li>\n\n\n\n<li>ABC105<\/li>\n\n\n\n<li>NF06-022<\/li>\n\n\n\n<li>BS 6001<\/li>\n\n\n\n<li>DIN 40080.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">AQL Sampling Plan and Tables \u2013 how to read AQL charts?<\/h3>\n\n\n\n<p>The AQL sampling plan is used to select samples from a batch for inspection. The plan helps in making informed decisions about the quality of the entire batch from the inspection report.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">AQL Inspection Table with practical examples<\/h2>\n\n\n\n<p>The AQL chart provides a reference for determining the sample size and acceptance number for different batch sizes and AQL levels. The table is what quality inspectors use to decide how many units to inspect and how many defects are acceptable.<\/p>\n\n\n\n<p>Table A contains the following sections:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>general inspection levels \u2013 visual, measurement control etc. non-destructive testing<\/li>\n\n\n\n<li>special inspection levels \u2013 all destructive testing<\/li>\n\n\n\n<li>lot size \u2013 the minimum and maximum number of items from the lot<\/li>\n\n\n\n<li>code letters assigned to lot size and inspection levels.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-1024x512.jpg\" alt=\"AQL table A\" class=\"wp-image-8409 lazyload\" style=\"width:700px\"\/><noscript><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-1024x512.jpg\" alt=\"AQL table A\" class=\"wp-image-8409 lazyload\" style=\"width:700px\" srcset=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-1024x512.jpg 1024w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-300x150.jpg 300w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-768x384.jpg 768w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-1536x768.jpg 1536w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-A-2048x1024.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n<\/div>\n\n\n<p>Table B for normal inspection includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>code letters \u2013 sample size code letters, which are selected according to table A&nbsp;<\/li>\n\n\n\n<li>sample size \u2013 the number of samples to be verified for a given code letter<\/li>\n\n\n\n<li>matrix with the values of acceptable maximum and rejected minimum<\/li>\n\n\n\n<li>AQL levels expressed in %\n<ul class=\"wp-block-list\">\n<li>0 or 0.065 for critical defect<\/li>\n\n\n\n<li>2.5 for major defect<\/li>\n\n\n\n<li>4 for minor defect&nbsp;<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-1024x512.jpg\" alt=\"AQL table B\" class=\"wp-image-8410 lazyload\" style=\"width:800px\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-1024x512.jpg\" alt=\"AQL table B\" class=\"wp-image-8410 lazyload\" style=\"width:800px\" srcset=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-1024x512.jpg 1024w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-300x150.jpg 300w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-768x384.jpg 768w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-1536x768.jpg 1536w, https:\/\/www.examinechina.com\/wp-content\/uploads\/AQL-table-B-2048x1024.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">AQL Inspection Table \u2013 practical example no. 1<\/h3>\n\n\n\n<p>Quantity: 3500 pieces<\/p>\n\n\n\n<p>Inspection: normal, level II and 2.5 &gt; the general inspection level is L [see table A]<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-1024x512.jpg\" alt=\"AQL table A\" class=\"wp-image-8622 lazyload\" style=\"width:700px\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-1024x512.jpg\" alt=\"AQL table A\" class=\"wp-image-8622 lazyload\" style=\"width:700px\" srcset=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-1024x512.jpg 1024w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-300x150.jpg 300w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-768x384.jpg 768w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-1536x768.jpg 1536w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-L-2-2048x1024.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n<\/div>\n\n\n<p>Selected samples: 200 pieces [see Table B]<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-1024x512.jpg\" alt=\"AQL table B\" class=\"wp-image-8624 lazyload\" style=\"width:800px\"\/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-1024x512.jpg\" alt=\"AQL table B\" class=\"wp-image-8624 lazyload\" style=\"width:800px\" srcset=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-1024x512.jpg 1024w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-300x150.jpg 300w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-768x384.jpg 768w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-1536x768.jpg 1536w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-L-2-2048x1024.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n<\/div>\n\n\n<p>The acceptance threshold: 10 pieces<\/p>\n\n\n\n<p>What does it mean? If in a number of selected samples more than ten pieces are defective, the batch should be rejected.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">AQL Inspection Table \u2013 practical example no. 2<\/h3>\n\n\n\n<p>Quantity: 2500 pieces<\/p>\n\n\n\n<p>Inspection: normal, level II and 2.5 &gt; the general inspection level is K [see table A]<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-1024x512.jpg\" alt=\"AQL table A\" class=\"wp-image-8621 lazyload\" style=\"width:700px\"\/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-1024x512.jpg\" alt=\"AQL table A\" class=\"wp-image-8621 lazyload\" style=\"width:700px\" srcset=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-1024x512.jpg 1024w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-300x150.jpg 300w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-768x384.jpg 768w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-1536x768.jpg 1536w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-a-K-2-2048x1024.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n<\/div>\n\n\n<p>Selected samples: 125 pieces [see Table B]<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-1024x512.jpg\" alt=\"AQL table B\" class=\"wp-image-8623 lazyload\" style=\"width:800px\"\/><noscript><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-1024x512.jpg\" alt=\"AQL table B\" class=\"wp-image-8623 lazyload\" style=\"width:800px\" srcset=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-1024x512.jpg 1024w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-300x150.jpg 300w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-768x384.jpg 768w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-1536x768.jpg 1536w, https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-table-b-K-2-2048x1024.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n<\/div>\n\n\n<p>The acceptance threshold: 8 pieces<\/p>\n\n\n\n<p>What does it mean? If in a number of selected samples more than eight pieces are defective, the batch should be rejected.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">What to do with rejected pieces?<\/h4>\n\n\n\n<p>Non-conforming pieces can be disposed of, replaced, or repaired. You can also offer to buy rejected pieces at a lower price.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">AQL Calculation<\/h2>\n\n\n\n<p>To calculate AQL, use this formula:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Determine your shipment lot quantity<\/li>\n\n\n\n<li>Select Special or General inspection level<\/li>\n\n\n\n<li>Select critical, major, or minor AQL for all defects<\/li>\n\n\n\n<li>Refer to Table A and Table B to determine the inspected quantities and accepted defects<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">AQL for inspection \u2013 AQL table PDF<\/h2>\n\n\n\n<p>The AQL table for inspection provides guidance for quality inspectors who use a sampling plan. During inspections, they determine the acceptability of a batch and make an inspection report so the buyer can make informed decisions.<\/p>\n\n\n\n<p>You can download an AQL table for free in PDF format for reference.<\/p>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-c97141bf-b7df-40eb-b563-e8a8442bc84d\" href=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-tables-examinechina.pdf\">AQL tables ExamineChina<\/a><a href=\"https:\/\/www.examinechina.com\/wp-content\/uploads\/aql-tables-examinechina.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-c97141bf-b7df-40eb-b563-e8a8442bc84d\">Download<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Sourcing from China involves many steps. One of the most important stages is supplier verification. If you decide to order from this supplier, it is important to check if the production goes smoothly. That is when inspection comes into the &#8230; <a title=\"AQL table \u2013 a comprehensive guide\" class=\"read-more\" href=\"https:\/\/www.examinechina.com\/aql-table\/\" aria-label=\"Read more about AQL table \u2013 a comprehensive guide\">Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":8460,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[25],"tags":[744,328,743,267],"class_list":["post-8458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-import","tag-acceptable-quality-limit","tag-aql","tag-aql-table","tag-quality-control","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"_links":{"self":[{"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/posts\/8458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/comments?post=8458"}],"version-history":[{"count":5,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/posts\/8458\/revisions"}],"predecessor-version":[{"id":8629,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/posts\/8458\/revisions\/8629"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/media\/8460"}],"wp:attachment":[{"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/media?parent=8458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/categories?post=8458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examinechina.com\/wp-json\/wp\/v2\/tags?post=8458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}