Publisher : SN

NS 9455:2005 PDF

Water quality — Guidelines for biological assessments in freshwater environments

Document status: Active

NS 9455:2015 PDF

Water quality - Guidelines and requirements for biological assessments in freshwater environments

Document status: Active

NS 9456:2004 PDF

Water quality — Visual counting of Atlantic salmon, anadromous brown trout and Arctic char

Document status: Active

NS 9456:2015 PDF

Visual registration of sea migrating salmonids in watercourses

Document status: Active

NS 9457:2004 PDF

Water quality — Guidance for survey on invertebrate drift in running waters

Document status: Active

NS 9458:2004 PDF

Water quality — Guidance for monitoring smolt migration with device

Document status: Active

NS 9459:2004 PDF

Water quality — Guidance on sampling of phytoplankton from lakes and reservoirs

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NS 9460:2005 PDF

Measurement of liquid flow in wastewater treatment plant - Use of thin plate weirs and flumes

Document status: Active

NS 9462:2006 PDF

Water quality — Determination of UV-absorbance

Document status: Active

NS 9500:1985 PDF

Plastics - Determination of apparent density of moulding material that can be poured from a specified funnel (ISO 60:1977)

Document status: Active