BS EN 15920:2011
Fertilizers. Extraction of phosphorus soluble in 2 % citric acid
BS 10/30233974 DC
BS EN 15920. Fertilizers. Extraction of phosphorus soluble in 2 % citric acid
BS DD CEN/TS 15920:2009
Fertilizers. Extraction of phosphorus soluble in 2% citric acid
BS 04/300130 DC
ISO 17792. Milk and milk products. Mesophilic starter cultures. Enumeration of citrate-fermenting lactic acid bacteria using a colony-count technique at 25 degreesC
BS DD CEN/TS 15921:2009
Fertilizers. Extraction of phosphorus soluble in alkaline ammonium citrate according to Petermann at 65°C