標準號：BS DD CEN/TS 14405-2004
中文標準名稱：廢棄物的表征.浸出特性試驗.上流滲透試驗(在特定條件下)
英文標準名稱：Characterization of waste - Leaching behaviour tests - Up-flow percolation test (under specified conditions)
標準類型：Z13
發布日期：2004/7/13 12:00:00
實施日期：2004/7/13 12:00:00
中國標準分類號：Z13
國際標準分類號：13.030.10
適用范圍：This Technical Specification is applicable to determine the leaching behaviour of inorganic constituents fromgranular waste (without or with size reduction (see 6.2)). The waste body is subjected to percolation with wateras a function of liquid to solid ratio under specified percolation conditions. The waste is leached underhydraulically dynamic conditions. The method is a once-through column leaching test and the test resultsestablish the distinction between different release patterns, for instance wash-out and release under theinfluence of interaction with the matrix, when approaching local equilibrium between waste and leachant.NOTE 1 The mentioned specified percolation conditions are arbitrary and are not simulating a specific scenario.NOTE 2 Waste materials that show a saturated hydraulic conductivity between 10-7 m/s and 10-8 m/s can be subjected tothis test, but it can be difficult to maintain the imposed flow rate. If a waste shows a saturated hydraulic conductivity below10-8 m/s, the test should not be carried out. (See C.5 for a definition of ‘hydraulic conductivity’.)NOTE 3 This procedure is generally not applicable to biologically degrading materials and materials reacting with theleachant, leading, for example, to excessive gas emission or excessive heat release.NOTE 4 This procedure is applicable to materials showing solidification in the column, if the final hydraulic conductivity iswithin the specified range (see NOTE 1).