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OENORM EN 15921
Fertilizers - Extraction of soluble phosphorus according to Petermann at 65 °C
Edition
2011-07-15
OENORM EN 15922
Fertilizers - Extraction of soluble phosphorus according to Petermann at ambient temperature
Edition
2011-07-15
OENORM EN 15923
Fertilizers - Extraction of phosphorus soluble in Joulie's alcaline ammonium citrate
Edition
2011-07-15
OENORM EN 15924
Fertilizers - Determination of the fineness of grinding of soft natural phosphates
Edition
2011-11-01
OENORM EN 15925
Fertilizers - Extraction of total sulfur present in various forms
Edition
2011-11-01
OENORM EN 15926
Fertilizers - Extraction of water soluble sulfur where the sulfur is in various forms
Edition
2011-11-01
OENORM EN 15928
Fertilizers - Determination of the fineness of grinding (dry procedure)
Edition
2010-10-15
OENORM EN 15930
Fibres - Elasticity of fibres - Test methods
Edition
2010-11-01
OENORM EN 15934
Sludge, treated biowaste, soil and waste - Calculation of dry matter fraction after determination of dry residue or water content
Edition
2012-10-01
OENORM EN 15935
Soil, waste, treated biowaste and sludge - Determination of loss on ignition
Edition
2023-08-15
