{"id":630993,"date":"2024-11-06T00:31:22","date_gmt":"2024-11-06T00:31:22","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-9912-42018\/"},"modified":"2024-11-06T00:31:22","modified_gmt":"2024-11-06T00:31:22","slug":"iso-9912-42018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-9912-42018\/","title":{"rendered":"ISO 9912-4:2018"},"content":{"rendered":"<p>This document specifies construction requirements and test methods for pressurized granulated media filters, hereinafter referred to as media filters, intended for operation in agricultural irrigation systems.<\/p>\n<p>It is applicable to both manual cleaning media filters and automatic self-cleaning media filters, used as single unit or in batteries (two or more units working in parallel).<\/p>\n<p>This document covers the operation and performance of a media filter, together with all related valves, back flushing mechanism, underdrains, manifolds and other related accessories necessary for the operation of the filter.<\/p>\n<p>This document is applicable to three configurations of a filter.<\/p>\n<p>a)    An empty filter vessel (tank) housing.<\/p>\n<p>b)    A filter vessel filled with media filter material(s), complete with valves, connections, air release and\/or other accessories. This configuration, when connected to and controlled by a flushing control device, is a complete operating single filter unit, usually positioned as a part of a filtration station.<\/p>\n<p>c)    A filtration station, called &#034;filter battery&#034;.<\/p>\n<p>Annex A provides information on types of irrigation media filters.<\/p>\n<p>Annex B provides information on granulated media.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Agricultural irrigation equipment \u2014 Filters for microirrigation \u2014 Part 4: Granulated media filters<\/b><\/p>\n<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\/iso\/\"><b>ISO<\/b><\/a><\/td>\n<td>2018-08<\/td>\n<td>22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":631005,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[932,2634],"product_tag":[],"class_list":{"0":"post-630993","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-65-060-35","7":"product_cat-iso","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\/630993","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\/631005"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=630993"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=630993"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=630993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}