{"id":3542,"date":"2025-07-31T18:47:36","date_gmt":"2025-07-31T18:47:36","guid":{"rendered":"https:\/\/discover.restek.com\/?p=3542"},"modified":"2025-12-09T00:23:13","modified_gmt":"2025-12-09T00:23:13","slug":"what-is-a-pi-marked-or-tped-gas-sample-cylinder","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/de\/faq\/gnot4998\/what-is-a-pi-marked-or-tped-gas-sample-cylinder","title":{"rendered":"What is a “-PI” marked or TPED gas sample cylinder?"},"content":{"rendered":"\n

To comply with the European Union Transportation of Pressurized Equipment Directive<\/a> (TPED), Restek offers \u201c-PI\u201d marked cylinders for use in European Union (EU) countries. The mathematical Pi mark is required to be stamped into the cylinder (metal) if the cylinder is sold into an EU country.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

To comply with the European Union Transportation of Pressurized Equipment Directive (TPED), Restek offers \u201c-PI\u201d marked cylinders for use in European Union (EU) countries. The mathematical Pi mark is required to be stamped into the cylinder (metal) if the cylinder is sold into an EU country.<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[23],"tags":[2677,2694],"industries-application":[],"post-badge":[],"resource-type":[],"product-library":[2371,2379],"resource-technique":[],"ppma_author":[414],"class_list":["post-3542","post","type-post","status-publish","format-standard","hentry","category-faq","tag-faq-air-sampling","tag-faq-gas-sampling","product-library-air-gas-sampling-products","product-library-gas-sampling-bags-accessories"],"acf":[],"taxonomy_info":{"category":[{"value":23,"label":"FAQ"}],"post_tag":[{"value":2677,"label":"FAQ: Air Sampling"},{"value":2694,"label":"FAQ: Gas Sampling"}],"product-library":[{"value":2371,"label":"Air & Gas Sampling Products"},{"value":2379,"label":"Gas Sampling Bags & Accessories"}]},"featured_image_src_large":false,"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/de\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":23,"name":"FAQ","slug":"faq","term_group":0,"term_taxonomy_id":23,"taxonomy":"category","description":"","parent":0,"count":271,"filter":"raw","cat_ID":23,"category_count":271,"category_description":"","cat_name":"FAQ","category_nicename":"faq","category_parent":0}],"tag_info":[{"term_id":2677,"name":"FAQ: Air Sampling","slug":"faq-air-sampling","term_group":0,"term_taxonomy_id":2677,"taxonomy":"post_tag","description":"Browse frequently asked questions for air sampling products.","parent":0,"count":39,"filter":"raw"},{"term_id":2694,"name":"FAQ: Gas Sampling","slug":"faq-gas-sampling","term_group":0,"term_taxonomy_id":2694,"taxonomy":"post_tag","description":"Browse frequently asked questions for gas sampling products.","parent":0,"count":6,"filter":"raw"}],"authors":[{"term_id":414,"user_id":11,"is_guest":0,"slug":"restek-corporation","display_name":"Restek Corporation","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts\/3542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/comments?post=3542"}],"version-history":[{"count":3,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts\/3542\/revisions"}],"predecessor-version":[{"id":71087,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/posts\/3542\/revisions\/71087"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/media?parent=3542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/categories?post=3542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/tags?post=3542"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/industries-application?post=3542"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/post-badge?post=3542"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/resource-type?post=3542"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/product-library?post=3542"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/resource-technique?post=3542"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/de\/wp-json\/wp\/v2\/ppma_author?post=3542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}