{"id":126049,"date":"2024-10-19T05:31:26","date_gmt":"2024-10-19T05:31:26","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-21904-42020\/"},"modified":"2024-10-24T23:17:34","modified_gmt":"2024-10-24T23:17:34","slug":"bs-en-iso-21904-42020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-21904-42020\/","title":{"rendered":"BS EN ISO 21904-4:2020"},"content":{"rendered":"

This document specifies two methods for establishing the minimum air volume flow rate. One method is dedicated for use with captor hoods, nozzles and slot nozzles with a ratio of slot length to hose diameter of 8:1 or less. The other method is dedicated for use with on-gun extraction devices.<\/p>\n

These methods are not applicable to down draught tables.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
7<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Captor hoods, nozzles and slot nozzles
4.1 Principle <\/td>\n<\/tr>\n
10<\/td>\n4.2 Apparatus
4.3 Test method
4.3.1 Test setup
4.3.2 Determination of the position of the entry and the measurement plane <\/td>\n<\/tr>\n
11<\/td>\n4.3.3 Procedure <\/td>\n<\/tr>\n
12<\/td>\n4.4 Test report <\/td>\n<\/tr>\n
13<\/td>\n5 On-torch extraction devices
5.1 Principle <\/td>\n<\/tr>\n
14<\/td>\n5.2 Apparatus
5.3 Test method
5.3.1 Test setup
5.3.2 Procedure <\/td>\n<\/tr>\n
15<\/td>\n5.4 Test report <\/td>\n<\/tr>\n
16<\/td>\nAnnex A (informative) Additional information for on-torch extraction <\/td>\n<\/tr>\n
18<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Health and safety in welding and allied processes. Equipment for capture and separation of welding fume – Determination of the minimum air volume flow rate of capture devices<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2024<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":126050,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[430,2641],"product_tag":[],"class_list":{"0":"post-126049","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-25-160-30","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\/126049","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\/126050"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=126049"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=126049"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=126049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}