{"id":1497,"date":"2026-04-10T02:34:39","date_gmt":"2026-04-10T09:34:39","guid":{"rendered":"https:\/\/www.songhaiflanges.com\/?p=1497"},"modified":"2026-04-10T02:37:24","modified_gmt":"2026-04-10T09:37:24","slug":"ped-vs-asme-vs-api-vs-iso-which-standard-is-strictest","status":"publish","type":"post","link":"https:\/\/www.songhaiflanges.com\/vi\/ped-vs-asme-vs-api-vs-iso-which-standard-is-strictest\/","title":{"rendered":"PED vs ASME vs API vs ISO: Which Standard Is Strictest?"},"content":{"rendered":"<h2>PED vs ASME vs API vs ISO: Comparing PVF Standards<\/h2>\n<p><strong>Published:<\/strong> April 10, 2026 | <strong>Category:<\/strong> Industry Standards<\/p>\n<h3>Quick Answer<\/h3>\n<p>For Europe: <strong>PED 2014\/68\/EU<\/strong> (strictest on documentation). For North America: <strong>ASME + API<\/strong>. For international: <strong>ISO 9001 + NACE<\/strong>.<\/p>\n<h3>PED 2014\/68\/EU<\/h3>\n<p><strong>What:<\/strong> EU legislation for pressure equipment.<\/p>\n<p><strong>Requirements:<\/strong> CE marking, Category I-IV, Notified Body, EN 10204 3.1\/3.2, Full traceability.<\/p>\n<p><strong>Strictest:<\/strong> Documentation and conformity assessment.<\/p>\n<h3>ASME<\/h3>\n<p><strong>Standards:<\/strong> B16.5, B16.47, Section VIII, B31.3.<\/p>\n<p><strong>Requirements:<\/strong> U Stamp, Dimensional compliance, P-T ratings, Hydrostatic testing.<\/p>\n<p><strong>Strictest:<\/strong> Dimensional tolerances.<\/p>\n<h3>API<\/h3>\n<p><strong>Standards:<\/strong> API 6A, 6D, 17D, 5L.<\/p>\n<p><strong>Requirements:<\/strong> PSL 1-4, Performance testing, NDT, API Q1.<\/p>\n<p><strong>Strictest:<\/strong> Performance testing and sour service materials.<\/p>\n<h3>ISO<\/h3>\n<p><strong>Standards:<\/strong> ISO 9001, ISO 15156\/NACE MR0175.<\/p>\n<p><strong>Requirements:<\/strong> QMS certification, H\u2082S materials, Hardness limits.<\/p>\n<p><strong>Strictest:<\/strong> Materials for sour service.<\/p>\n<h3>Comparison Table<\/h3>\n<table>\n<thead>\n<tr>\n<th>Aspect<\/th>\n<th>PED<\/th>\n<th>ASME<\/th>\n<th>API<\/th>\n<th>ISO<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Documentation<\/td>\n<td>\u2605\u2605\u2605\u2605\u2605<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<td>\u2605\u2605\u2605\u2605\u2606<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<\/tr>\n<tr>\n<td>Dimensions<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<td>\u2605\u2605\u2605\u2605\u2605<\/td>\n<td>\u2605\u2605\u2605\u2605\u2606<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<\/tr>\n<tr>\n<td>Material Testing<\/td>\n<td>\u2605\u2605\u2605\u2605\u2606<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<td>\u2605\u2605\u2605\u2605\u2605<\/td>\n<td>\u2605\u2605\u2605\u2605\u2605<\/td>\n<\/tr>\n<tr>\n<td>3rd Party<\/td>\n<td>\u2605\u2605\u2605\u2605\u2605<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<td>\u2605\u2605\u2605\u2605\u2606<\/td>\n<td>\u2605\u2605\u2605\u2606\u2606<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Songhai Capabilities<\/h3>\n<ul>\n<li>PED 2014\/68\/EU &#8211; CE marked<\/li>\n<li>ASME B16.5\/B16.47<\/li>\n<li>API 6A PSL 1-3<\/li>\n<li>ISO 9001:2008<\/li>\n<li>NACE MR0175<\/li>\n<\/ul>\n<p><strong>Need multi-standard certification?<\/strong> Songhai provides full traceability.<\/p>\n<p><strong>WhatsApp:<\/strong>\u00a0+86-18658777855<\/p>\n<p><strong>Email:<\/strong>\u00a01007788887@qq.com<\/p>\n<p><a href=\"https:\/\/www.720yun.com\/vr\/a6ajt7ynrw0\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1480\" src=\"http:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1.webp\" alt=\"\" width=\"1290\" height=\"2317\" srcset=\"https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1.webp 1290w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-167x300.webp 167w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-570x1024.webp 570w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-768x1379.webp 768w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-855x1536.webp 855w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-1140x2048.webp 1140w, https:\/\/www.songhaiflanges.com\/wp-content\/uploads\/2026\/04\/4-1-7x12.webp 7w\" sizes=\"auto, (max-width: 1290px) 100vw, 1290px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>PED vs ASME vs API vs ISO: Comparing PVF Standards Published: April 10, 2026 | Category: Industry Standards Quick Answer For Europe: PED&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"default","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1],"tags":[109,126,129,127,125,128],"class_list":["post-1497","post","type-post","status-publish","format-standard","hentry","category-3-news","tag-api","tag-asme","tag-ce-marking","tag-iso","tag-ped","tag-standards"],"_links":{"self":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts\/1497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/comments?post=1497"}],"version-history":[{"count":3,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts\/1497\/revisions"}],"predecessor-version":[{"id":1510,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/posts\/1497\/revisions\/1510"}],"wp:attachment":[{"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/media?parent=1497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/categories?post=1497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.songhaiflanges.com\/vi\/wp-json\/wp\/v2\/tags?post=1497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}