Table 2: Standardization of leaching tests.

Standard Title Year Origin
EN 12457-3 [18] Characterization of waste - leaching compliance test for leaching of granular waste materials and sludges. Part 3: Two-stage batch test at a liquid to solid ratio 2 and 8 L/kg for materials with a particle size below 4 mm (without or with size reduction) 2002 Europe
EN 12457-4 [12] Characterization of waste - leaching compliance test for leaching of granular waste materials and sludges. Part 4: One stage batch test at a liquid to solid ratio of 10 L/kg for materials with a particle size below 10 mm (without or with size reduction) 2002 Europe
NEN 7343 [19] Leaching characteristics of solid earthy and stony building and waste materials. Leaching test. Determination of the leaching of inorganic components from granular materials with the column test 1994 Netherlands
CEN/TS 14405 [20] Characterization of waste - Leaching behaviour tests. Up-flow percolation test (under specified conditions) 2004 Europe
EN 14997 [21] Characterization of waste - Leaching behaviour tests. Influence of pH on leaching with continuous pH-control 2015 Europe
TCLP 1311 [22] Toxicity characteristic leaching procedure 1992 USA