{"id":376543,"date":"2024-10-20T02:48:35","date_gmt":"2024-10-20T02:48:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-38212019-2\/"},"modified":"2024-10-26T04:58:15","modified_gmt":"2024-10-26T04:58:15","slug":"bs-en-iso-38212019-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-38212019-2\/","title":{"rendered":"BS EN ISO 3821:2019"},"content":{"rendered":"<p>This document specifies requirements for rubber hoses (including twin hoses) for welding, cutting and allied processes.<\/p>\n<p>This document specifies requirements for rubber hoses for normal duty of 2\u00c2&nbsp;MPa (20\u00c2&nbsp;bar) and light duty [limited to hoses for maximum working pressure of 1\u00c2&nbsp;MPa (10\u00c2&nbsp;bar) and with bore up to and including 6,3\u00c2&nbsp;mm].<\/p>\n<p>This document applies to hoses operated at temperatures \u00e2\u02c6\u20192 0\u00c2&nbsp;\u00c2\u00b0C to +60\u00c2&nbsp;\u00c2\u00b0C and used in:<\/p>\n<ul>\n<li>\n<p>gas welding and cutting;<\/p>\n<\/li>\n<li>\n<p>arc welding under the protection of an inert or active gas;<\/p>\n<\/li>\n<li>\n<p>processes allied to welding and cutting, in particular, heating, brazing, and metallization.<\/p>\n<\/li>\n<\/ul>\n<p>This document does not specify requirements for hose assemblies; these are detailed in <span class=\"std\"> <span class=\"std-ref\">ISO\u00c2&nbsp;8207<\/span><\/span>.<\/p>\n<p>This document applies neither to thermoplastics hoses nor to hoses used for high pressure [&gt;0,15\u00c2&nbsp;MPa (&gt;1,5\u00c2&nbsp;bar)] acetylene.<\/p>\n<h4>PDF Catalog<\/h4>\n<table border=\"1px\" class=\"des-table\">\n<tr>\n<th>PDF Pages<\/th>\n<th>PDF Title<\/th>\n<\/tr>\n<tr>\n<td><b>2<b><\/td>\n<td>National foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>4<b><\/td>\n<td>European foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>1 Scope <br \/> 2 Normative references  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>3 Terms and definitions <br \/> 4 Abbreviated terms <br \/> 5 Application <br \/> 6 Hose designation  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>7 Materials <br \/> 7.1 Construction <br \/> 7.1.1 Light and normal duty hoses <br \/> 7.1.2 Flux fuel gas hose <br \/> 7.1.3 Twin hose <br \/> 7.2 Manufacture <br \/> 8 Dimensions and tolerances <br \/> 8.1 Inside diameters  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>8.2 Outside diameters <br \/> 8.3 Wall thickness  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>8.4 Concentricity (total indicator reading) <br \/> 8.5 Cut lengths and tolerances <br \/> 8.6 Disclosure of inside diameter and outside diameter <br \/> 9 Requirements and type tests <br \/> 9.1 General <br \/> 9.2 Basic requirements <br \/> 9.2.1 Tensile strength and elongation at break <br \/> 9.2.2 Accelerated ageing <br \/> 9.2.3 Adhesion  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>9.2.4 Hydrostatic requirements <br \/> 9.2.5 Flexibility at ambient temperature <br \/> 9.2.6 Low-temperature flexibility <br \/> 9.2.7 Protection against incandescent particles and hot surfaces <br \/> 9.2.8 Ozone resistance <br \/> 9.3 Special requirements <br \/> 9.3.1 Non-ignition requirement for oxygen hoses  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>9.3.2 Resistance to acetone and dimethylformamide for acetylene hoses <br \/> 9.3.3 Resistance to n-pentane for propane hoses <br \/> 9.3.4 Resistance to azeotrope of trimethylborate with methanol for flux fuel gas hoses  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>9.3.5 Flexibility of flux fuel gas hoses <br \/> 9.3.6 Permeability to LPG, MPS, and natural gas of methane hoses, universal fuel gas hoses, and flux fuel gas hoses <br \/> 9.3.7 Requirements for twin hoses <br \/> 9.3.8 Requirements for universal fuel gas hose <br \/> 10 Hose colour and gas identification <br \/> 10.1 General <br \/> 10.2 Gas identification  <\/td>\n<\/tr>\n<tr>\n<td><b>17<b><\/td>\n<td>10.3 Marking  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Annex A (normative) Method of test for non-ignition  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>Annex B (normative) Method of test for resistance to n-pentane  <\/td>\n<\/tr>\n<tr>\n<td><b>21<b><\/td>\n<td>Annex C (normative) Method of test for resistance to incandescent particles and hot surfaces  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>Annex D (normative) Summary of requirements and type tests  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>Annex E (normative) Alternative oxygen gas colour codes  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Gas welding equipment. Rubber hoses for welding, cutting and allied processes<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2021<\/td>\n<td>26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":376549,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[430,2641],"product_tag":[],"class_list":{"0":"post-376543","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\/376543","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\/376549"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=376543"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=376543"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=376543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}