30.20 Oct 6, 2026
ISO
ISO/TC 281
International Standard
This document specifies a test method to evaluate the effectiveness of removing nitrogen and phosphorus from sediments through washing using fine bubble technology. It is applicable to freshwater and estuarine environments where sediment-bound nutrients cause water quality degradation.
PROJECT
ISO/CD 4240-6
30.20
CD study/ballot initiated
Oct 6, 2026
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