BS PD ISO/TS 22939:2019


 

 

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标准号
BS PD ISO/TS 22939:2019
发布
2019年
发布单位
SCC
当前最新
BS PD ISO/TS 22939:2019
 
 
适用范围
  Full Description 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 comparison of enzyme activities in a control soil similar to the test soil, or on exposure tests with chemicals or treatments. Cross References: ISO 10694 ISO 10390 ISO 18400-206 All current amendments available at time of purchase are included with the purchase of this document.

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