BS PD ISO/TS 22939:2019

This document specifies a method for the measurement of several enzyme activities (arylsulfatase,α — glucosidase, ß -glucosidase, Cellubisidase, ß -Xylosidase, phosphodiesterase (PDE), chitinase, phosphomonoesterase (PME), leucine-aminopeptidase, Alanine-aminopeptidase) simultaneously (or not) using fluorigenic substrates in soil samples. Enzyme activities of soil vary seasonally and depend on the chemical, physical and biological characteristics of soil. Its application for the detection of harmful effects of toxic chemicals or other anthropogenic impacts depends on the simultaneous comparisonof enzyme activities in a control soil similar to the test soil, or on exposure tests with chemicals ortreatments.Cross References:ISO 10694ISO 10390ISO 18400-206