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ISO 23753-1
Soil quality - Determination of dehydrogenases activity in soils - Part 1: Method using triphenyltetrazolium chloride (TTC)
Edition
2019-02
ISO 23753-2
Soil quality - Determination of dehydrogenases activity in soils - Part 2: Method using iodotetrazolium chloride (INT)
Edition
2019-02
ISO 13162
Water quality - Carbon 14 - Test method using liquid scintillation counting
Edition
2021-06
ISO 3021
Adventure tourism - Hiking and trekking activities - Requirements and recommendations
Edition
2023-01
BS EN ISO 9308-1+A1
Water quality. Enumeration of Escherichia coli and coliform bacteria. Membrane filtration method for waters with low bacterial background flora
Edition
2014-10-31
BS EN ISO 2870
Surface active agents. Detergents. Determination of anionic-active matter hydrolysable and non-hydrolysable under acid conditions
Edition
2009-03-31
NF T90-414-1 ; NF EN ISO 9308-1:2014-09-24
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: membrane filtration method for waters with low bacterial background flora
Edition
2014-09-24
BS ISO 21103
Adventure tourism. Information for participants
Edition
2014-04-30
UNE-EN 13286-44
Unbound and hydraulically bound mixtures - Part 44: Test method for the determination of the alpha coefficient of vitrified blast furnace slag
Edition
2004-04-16
UNE-EN 60068-2-10
Environmental testing - Part 2-10: Tests - Test J and guidance: Mould growth (IEC 60068-2-10:2005)
Edition
2006-11-29