{"id":601434,"date":"2024-11-05T22:10:16","date_gmt":"2024-11-05T22:10:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-187492004\/"},"modified":"2024-11-05T22:10:16","modified_gmt":"2024-11-05T22:10:16","slug":"iso-187492004","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-187492004\/","title":{"rendered":"ISO 18749:2004"},"content":{"rendered":"<p>ISO 18749:2004 specifies a screening test method for the determination of the degree of adsorption of substances on to the activated sludge or primary sludge in a waste water treatment plant.<\/p>\n<p>The conditions described in this International Standard normally correspond to the optimum conditions for the adsorption to occur at the chosen activated-sludge concentration and water hardness during the test period.<\/p>\n<p>The method applies to substances for which an analytical method with sufficient accuracy is available and which, under the conditions of the test and at the test concentration used,<\/p>\n<ol>\n<li>are water-soluble;<\/li>\n<li>or, if only slightly water-soluble, allow sufficiently stable suspensions, dispersions or emulsions to be prepared;<\/li>\n<li>are not significantly removed from the test solution during the test by known abiotic processes such as stripping or foaming;<\/li>\n<li>do not deflocculate activated sludge;<\/li>\n<li>are not readily biodegradable.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p><b>Water quality \u2014 Adsorption of substances on activated sludge \u2014 Batch test using specific analytical methods<\/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>2004-02<\/td>\n<td>18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":601446,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[218,2634],"product_tag":[],"class_list":{"0":"post-601434","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-70","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\/601434","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\/601446"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=601434"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=601434"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=601434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}