標準號：BS EN 12457-3-2002
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.高固體含量和粒徑小于4 mm的材料在液體,固體比為2 l/kg和8 l/kg時的二級分批試驗
英文標準名稱：Characterisation of waste. Leaching. Compliance test for leaching of granular waste materials and sludges. Two stage batch test at a liquid to solid ratio of 2 l/kg and 8 l/kg for materials with a high solid content and with a particle size below 4 mm (wi
標準類型：Z13
發布日期：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：13.030.20;13.060.10
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 2 l/kg dry matter in a first step and subsequently of 8 l/kg dry matter in a second step. It applies to waste whichhas a particle size below 4 mm without or with size reduction (as specified in 4.3.2)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 eluates which shall subsequently becharacterised physically and chemically according to appropriate standard methods.This procedure is only applicable to waste material and sludges having a high solid content : the dry matter contentratio shall be at least higher than 33%. In addition, the necessary quantity of eluate in each step shall be obtainedto perform the physical and chemical characterisation of the eluate. Furthermore, the minimum dry matter contentratio shall be high enough to allow a sufficient mixing of the leachant and the test portion.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.NOTE 4 In relation with the minimum dry matter content ratio required for obtaining enough eluate in the first step, the testportion specified in this European Standard of 175 gram dry matter results in a maximum volume of eluate of 175 ml if its drymatter content ratio is 50 %.When the first step of this part 3 is not applicable, the leaching test at L/S = 10 specified in part 2 can beperformed.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.