Main menu
Use the form below to find particular standards or projects. Enter your criteria for searching (single or in combination) in the fields below and press the button “Search”. You can also search using the Advance Search facility.
Water quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates
90.93 Standard confirmed
Water quality — Biological classification of rivers — Part 2: Guidance on the presentation of biological quality data from surveys of benthic macroinvertebrates
90.93 Standard confirmed