NS EN ISO 9888 Ed. 2 (1999)现行
Water Quality - Evaluation Of Ultimate Aerobic Biodegradability Of Organic Compounds In Aqueous Medium - Static Test (zahn-wellens Method)
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Defines a procedure for the evaluation in aqueous medium of the ultimate biodegradability and as information, the primary biodegradability and the total elimination from water, of organic compounds at a specified concentration by aerobic microorganisms. The procedure is applicable to organic compounds which are water-soluble at the concentration used under the test conditions and not expected to be transformed to insoluble metabolites if biodegradation; nonvolatile, or which have negligible vapour pressure under test conditions; not lost by foaming from the test solution and not inhibitory to the microorganisms at the concentration chosen for the test.
NEN EN ISO 9888:1999 - Identical
UNE EN ISO 9888:1999 - Identical
ISO 9888:1999 - Identical
NF EN ISO 9888:1999 - Identical
ONORM EN ISO 9888:1999 - Identical
DIN EN ISO 9888 (1999-11) - Identical
BS EN ISO 9888:1999 - Identical
SN EN ISO 9888:1999 - Identical
NBN EN ISO 9888:1999 - Identical
UNI EN ISO 9888:2000 - Identical
SS EN ISO 9888 Ed. 1 (1999) - Identical
I.S. EN ISO 9888:1999 - Identical
