{"id":596884,"date":"2024-11-05T21:49:41","date_gmt":"2024-11-05T21:49:41","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-162212001\/"},"modified":"2024-11-05T21:49:41","modified_gmt":"2024-11-05T21:49:41","slug":"iso-162212001","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-162212001\/","title":{"rendered":"ISO 16221:2001"},"content":{"rendered":"<p>This International Standard specifies five methods for determining the ultimate aerobic biodegradability of organic<\/p>\n<p>compounds in the marine environment by aerobic microorganisms in static aqueous test systems. Standard<\/p>\n<p>degradation methods developed for testing in fresh water are modified and adapted to marine conditions. These<\/p>\n<p>methods are the DOC die-away test (ISO 7827), the closed bottle test (ISO 10707), the two-phase closed bottle<\/p>\n<p>test (ISO 10708), the CO2 evolution test (ISO 9439) and the CO2 headspace test (ISO 14593).<\/p>\n<p>The methods apply to organic compounds which<\/p>\n<p>a) are water-soluble under the conditions of the test used;<\/p>\n<p>b) are poorly water-soluble under the conditions of the test used, in which case special measures may be<\/p>\n<p>necessary to achieve good dispersion of the compound (see for example, ISO 10634);<\/p>\n<p>c) are volatile, provided that an appropriate test with suitable conditions is used;<\/p>\n<p>d) are not inhibitory to the test microorganisms at the concentration chosen for the tests. The presence of<\/p>\n<p>inhibitory effects can be determined as specified in this International Standard.<\/p>\n<p>NOTE The conditions described in this International Standard do not always correspond to the optimal conditions for<\/p>\n<p>allowing the maximum degree of biodegradation to occur. For biodegradation methods in fresh water see ISO 14593 and<\/p>\n<p>ISO 15462, and for biodegradation at low concentrations see ISO 14592.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Water quality \u2014 Guidance for determination of biodegradability in the marine environment<\/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>2001-02<\/td>\n<td>20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":596898,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[218,2634],"product_tag":[],"class_list":{"0":"post-596884","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\/596884","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\/596898"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=596884"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=596884"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=596884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}