This part of ISO 11916 specifies the measurement of explosives and related nitrocompounds (as given in Table 1) in soil and soil materials. This document is intended for the trace analysis of explosives and related compounds by liquid chromatography tandem mass spectrometry (LC-MS/MS). Generally, LCMS/ MS measurement shows the lower LOQ (limit of quantification) for each compound in Table 1 than that of high-performance liquid chromatography (HPLC) measurement. Under the conditions specified in this document, concentrations as low as 0,005 mg/kg to 0,014 mg/kgdry matter can be determined, depending on the substance. Similar compounds, in particular various nitroaromatics, by-products and degradation products of explosive compounds may be analyzed using this method. However, the applicability should be checked on a case-by-case basis.