標準號：BS EN 12457-4-2002
中文標準名稱：廢棄物的特性.浸析.顆粒廢棄物和污泥浸析的一致性試驗.粒徑小于10 mm材料在液體,固體比為10 l/kg時的一級分批試驗
英文標準名稱：Characterisation of waste. Leaching. Compliance test for leaching of granular waste materials and sludges. One stage batch test at a liquid to solid ratio of 10 l/kg for materials with particle size below 10 mm (without or with size reduction)
標準類型：Z13
發(fā)布日期：2002/10/15 12:00:00
實施日期：2002/10/15 12:00:00
中國標準分類號：Z13
國際標準分類號：13.030.10;13.030.20
適用范圍：This part of four European Standards specifies a compliance test providing information on leaching of granularwastes and sludges under the experimental conditions specified hereafter, and particularly a liquid to solid ratioof 10 l/kg dry matter. It applies to waste which has a particle size below 10 mm without or with size reduction (asspecified in 4.3.2)NOTE In some cases, it could be useful to test the material with coarser particles up to 40 mm in diameter. This requires alarger amount for material and liquid. In this particular case, particle size distribution related differences in leaching may bemore pronounced than in the standard procedure.This European Standard has been developed to investigate mainly inorganic constituents from wastes. It does nottake into account the particular characteristics of non-polar organic constituents nor the consequences ofmicrobiological processes in organic degradable wastes.The test procedure specified in this European Standard produces an eluate which shall subsequently becharacterised physically and chemically according to appropriate standard methods.NOTE 1 This procedure cannot be applicable to materials with a water content or such a water affinity that a good mixing ofthe solid with the predetermined quantity of liquid is not achievable.NOTE 2 This procedure cannot be applicable to materials reacting with the leachant, leading, for example, to excessive gasemission, a solidifying effect or an excessive heat release.NOTE 3 By crushing the material, new surfaces are exposed which may lead to a change in leaching properties.This test cannot be used alone to determine the leaching behaviour of a waste, as specified in ENV 12920.This European Standard does not address issues related to health and safety.