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SN EN ISO 21068-3
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068‑3:2024)
Edition
2024-06
NF B49-423-3 ; NF EN ISO 21068-3:2024-06-19
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 3: determination of nitrogen, oxygen and metallic and oxidic constituents
Edition
2024-06-19
SN EN ISO 23977-2
Plastics - Determination of the aerobic biodegradation of plastic materials exposed to seawater - Part 2: Method by measuring the oxygen demand in closed respirometer (ISO 23977-2:2020)
Edition
2021-11
SN EN ISO 18830
Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sandy sediment interface - Method by measuring the oxygen demand in closed respirometer (ISO 18830:2016)
Edition
2018-06
SN EN ISO 11114-3
Gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 3: Autogenous ignition test for non-metallic materials in oxygen atmosphere (ISO 11114-3:2010)
Edition
2011-03
OENORM EN ISO 18777
Transportable liquid oxygen systems for medical use - Particular requirements (ISO 18777:2005)
Edition
2009-07-15
NF A06-651
Chemical analysis of titanium and titanium alloys - Determination of oxygen content
Edition
2022-07-08
OENORM EN 17351
Bio-based products - Determination of the oxygen content using an elemental analyser
Edition
2020-04-15
OENORM EN ISO 15001
Anaesthetic and respiratory equipment - Compatibility with oxygen (ISO 15001:2010)
Edition
2012-02-01
OENORM M 5889
Measurement of oxygen transfer of aeration eqiupment in activated sludge
Edition
2008-09-01