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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

NF T90-316 ; NF EN ISO 9888:1999-09-01
Water quality. Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium. Static test (Zahn-Wellens method)

Title (German)

WASSERBESCHAFFENHEIT. BESTIMMUNG DER AEROBEN BIOLOGISCHEN ABBAUBARKEIT ORGANISCHER STOFFE IM WAESSRIGEN MEDIUM. STATISCHER TEST (ZAHN-WELLENS-TEST). (EUROPAEISCHE NORM EN ISO 9888)

Edition 1999-09-01

Original language French

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Terminology

Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

NF T90-316 ; NF EN ISO 9888:1999-09-01 Water quality. Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium. Static test (Zahn-Wellens method)

Want to learn more?

NF T90-316 ; NF EN ISO 9888:1999-09-01
Water quality. Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium. Static test (Zahn-Wellens method)