{"id":283550,"date":"2024-10-19T19:10:39","date_gmt":"2024-10-19T19:10:39","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-117332004\/"},"modified":"2024-10-25T15:56:28","modified_gmt":"2024-10-25T15:56:28","slug":"bs-en-iso-117332004","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-117332004\/","title":{"rendered":"BS EN ISO 11733:2004"},"content":{"rendered":"

This International Standard specifies a method for the determination of the elimination and the biodegradability of organic compounds by aerobic micro-organisms. The conditions described simulate a waste-water treatment plant. Two test systems can be used: activated sludge plants or porous pots. The tests can optionally be performed under conditions of nitrification and denitrification (Annex A) and coupling of the units (Annex B).<\/p>\n

The method applies to organic compounds which, under the conditions of the test, are<\/p>\n

    \n
  1. \n

    soluble in tap water at the test concentration and not expected to be transformed to insoluble metabolites if biodegradation, in addition to elimination, is determined;<\/p>\n<\/li>\n

  2. \n

    poorly water-soluble, but which are satisfactorily dispersible in water and allow detection with suitable analytical means (e.g. organic carbon measurements);<\/p>\n<\/li>\n

  3. \n

    non-volatile, or which have a negligible vapour pressure under the test conditions;<\/p>\n<\/li>\n

  4. \n

    not inhibitory to the test micro-organisms at the concentration chosen for the test. Inhibitory effects can be determined by using a suitable test method (e.g. ISO 8192[15]<\/sup> or ISO 15522[27]<\/sup>). Compounds inhibitory at concentrations used in this test may be tested at concentrations less than their EC20<\/sub> value, followed by higher practical concentrations after a period of acclimatization.<\/p>\n<\/li>\n<\/ol>\n

    The method can also be used to measure the biodegradation and elimination of dissolved organic compounds in waste water (also called \u201ctest compound\u201d in the method).<\/p>\n

    If more or different information is required to predict the behaviour of test compounds or waste water in a treatment plant, other degradation tests may be performed. For appropriate use of this method and for alternative biodegradation methods, see ISO\/TR 15462 and for general information on biotesting, see ISO 5667-16.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Water quality. Determination of the elimination and biodegradability of organic compounds in an aqueous medium. Activated sludge simulation test<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    BSI<\/b><\/a><\/td>\n2005<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":283552,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[218,2641],"product_tag":[],"class_list":{"0":"post-283550","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-13-060-70","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\/283550","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\/283552"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=283550"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=283550"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=283550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}