本文件规定了两种土壤消化方法，即使用王水消化法处理的生物废物、污泥和废物。 王水消化不一定能使样品完全分解。提取的分析物浓度不一定反映样品中的总含量，但代表本试验程序条件下的王水可溶性金属。人们普遍认为，出于环境分析目的，结果符合保护环境的预期目的。 本文件适用于以下要素: 铝、锑、砷、钡、铍、硼、镉、钙、铬、钴、铜、铁、铅、镁、锰、汞、钼、镍、磷、钾、硒、银、钠、锶、硫、碲、铊、锡、，钛、钒和锌。 本文件也可用于其他元素的消化，前提是用户已验证其适用性。

This document specifies two methods for digestion of soil, treated biowaste, sludge and waste by the use of an aqua regia digestion. Digestion with aqua regia will not necessarily accomplish total decomposition of the sample. The extracted analyte concentrations may not necessarily reflect the total content in the sample but represent the aqua regia soluble metals under the condition of this test procedure. It is generally agreed that for environmental analysis purposes, the results are fit for the intended purpose to protect the environment. This document is applicable for the following elements: Aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), beryllium (Be), boron (B), cadmium (Cd), calcium (Ca), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), magnesium (Mg), manganese (Mn), mercury (Hg), molybdenum (Mo), nickel (Ni), phosphorus (P), potassium (K), selenium (Se), silver (Ag), sodium (Na), strontium (Sr), sulfur (S), tellurium (Te), thallium (Tl), tin (Sn), titanium (Ti), vanadium (V), and zinc (Zn). This document can also be applied for the digestion of other elements, provided the user has verified the applicability.