{"id":312866,"date":"2024-10-19T21:31:32","date_gmt":"2024-10-19T21:31:32","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-182252012\/"},"modified":"2024-10-25T19:33:48","modified_gmt":"2024-10-25T19:33:48","slug":"bs-iso-182252012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-182252012\/","title":{"rendered":"BS ISO 18225:2012"},"content":{"rendered":"<p>This International Standard specifies general and performance requirements for multilayer pipe systems based on pipes made from thermoplastics and intended to be used for gas supply outdoors.<\/p>\n<p>It gives requirements for the design of pipe systems consisting of multilayer pipes based on thermoplastics and for which at least 60&nbsp;%&nbsp;of the wall thickness is of a polymeric material. The polymeric material used for stress design layers and all inner layers must be polyethylene (PE) and\/or crosslinked polyethylene (PE-X), in accordance with Annex&nbsp;A. The outer layers of metal multilayer pipes must be of either PE or PE-X.<\/p>\n<blockquote>\n<p>NOTE For the purposes of this International Standard, PE-RT is considered as PE, while PE-X and adhesive layers are considered as thermoplastics materials.<\/p>\n<\/blockquote>\n<p>This International Standard is applicable to systems intended to be operated at temperatures ranging from&nbsp;\u221220&nbsp;\u00b0C to 40&nbsp;\u00b0C. It is applicable to pipes in these systems having a nominal diameter up to and including 630&nbsp;mm, and to the supply of gaseous fuels of categories D (natural gas) and E (LPG vapour and natural gas or LPG vapour) (see ISO&nbsp;13623).<\/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>6<b><\/td>\n<td>Foreword  <\/td>\n<\/tr>\n<tr>\n<td><b>7<b><\/td>\n<td>Introduction  <\/td>\n<\/tr>\n<tr>\n<td><b>9<b><\/td>\n<td>1\tScope <br \/> 2\tNormative references  <\/td>\n<\/tr>\n<tr>\n<td><b>10<b><\/td>\n<td>3\tTerms and definitions <br \/> 3.1\tStructural definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>11<b><\/td>\n<td>3.2\tGeometrical definitions  <\/td>\n<\/tr>\n<tr>\n<td><b>12<b><\/td>\n<td>3.3\tDefinitions related to pressure <br \/> 3.4\tMaterials definitions <br \/> 3.5\tDefinitions related to material characteristics  <\/td>\n<\/tr>\n<tr>\n<td><b>13<b><\/td>\n<td>3.6\tTerms related to service conditions <br \/> 4\tPipes <br \/> 4.1\tMaterial  <\/td>\n<\/tr>\n<tr>\n<td><b>14<b><\/td>\n<td>4.2\tGeneral characteristics <br \/> 4.3\tDimensions of pipes  <\/td>\n<\/tr>\n<tr>\n<td><b>15<b><\/td>\n<td>Table tab_1  <\/td>\n<\/tr>\n<tr>\n<td><b>16<b><\/td>\n<td>Table tab_2 <br \/> 4.4\tMechanical properties  <\/td>\n<\/tr>\n<tr>\n<td><b>18<b><\/td>\n<td>Table tab_3 <br \/> Table tab_4 <br \/> 4.5\tPhysical properties  <\/td>\n<\/tr>\n<tr>\n<td><b>19<b><\/td>\n<td>Table tab_5 <br \/> 5\tFittings <br \/> 5.1\tFittings reference standards <br \/> 5.2\tMaterials <br \/> 5.3\tDimensions <br \/> 5.4\tElastomeric seals <br \/> 6\tFitness for purpose of the system  <\/td>\n<\/tr>\n<tr>\n<td><b>20<b><\/td>\n<td>Table tab_6 <br \/> 7\tMarking and documentation <br \/> 7.1\tLegibility <br \/> 7.2\tDamage <br \/> 7.3\tMinimum marking requirements  <\/td>\n<\/tr>\n<tr>\n<td><b>22<b><\/td>\n<td>Table tab_A.1 <br \/> Annex\u00a0A<br \/>\n(normative)<\/p>\n<p>List of reference product standards  <\/td>\n<\/tr>\n<tr>\n<td><b>23<b><\/td>\n<td>Annex\u00a0B<br \/>\n(normative)<\/p>\n<p>Testing resistance to gas constituents  <\/td>\n<\/tr>\n<tr>\n<td><b>24<b><\/td>\n<td>Table tab_C.1 <br \/> Annex\u00a0C<br \/>\n(normative)<\/p>\n<p>Testing resistance to weathering of outer layer of M-pipes  <\/td>\n<\/tr>\n<tr>\n<td><b>25<b><\/td>\n<td>Reference ref_1 <br \/> Reference ref_2 <br \/> Reference ref_3 <br \/> Reference ref_4 <br \/> Reference ref_5 <br \/> Reference ref_6 <br \/> Reference ref_7 <br \/> Reference ref_8 <br \/> Reference ref_9 <br \/> Reference ref_10 <br \/> Reference ref_11 <br \/> Bibliography  <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p><b>Plastics piping systems. Multilayer piping systems for outdoor gas installations. Specifications for systems<\/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>2012<\/td>\n<td>28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":312874,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[349,2641],"product_tag":[],"class_list":{"0":"post-312866","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-23-040-20","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\/312866","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\/312874"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=312866"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=312866"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=312866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}