KS I ISO 8689-1-2006(2016) Water quality-Biological classification of rivers-Part 1:Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates
2006KS I ISO 8689-1:2006 Water quality-Biological classification of rivers-Part 1:Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates