NY/T 3655-2020
Determination of N-Hydroxymethyl methionine calcium in feeds
NY/T 4353-2023
NY/T 3947-2021
Determination of selenocystine, methylselenocysteine and selenotmethionine in livestock and poultry meat by high performance liquid chromatography-atomic f1uorescence spectrometry
T/LNIQA 010-2023
GB/T 17810-2009
Feed grade DL-methionine
GB/T 42957-2023
Determination of lysine, methionine and threonine in commercial amino acid products and additive premixture feeds
GB 21694-2017
Feed additive―Zinc methionine complex (chelate)
GB 22489-2017
Feed additive―Manganese methionine complex (chelate)
GB 20802-2017
Feed additive-Cupric methionine complex (chelate)
GB 21034-2017
Feed additive-Calcium salt of hydroxyl analogue of methionine
GB/T 18868-2024
Rapid determination of moisture, crude protein, crude fibre, crude fat, lysine and methinione in feeds—Near infrared spectroscopy
DB22/T 2462-2016
NY/T 1498-2008
Feed additive Ferrous methionine
GB/T 19371.2-2007
Determination of methionine hydroxy analogue in feeds - High-performance liquid chromatography
GB/T 21694-2008
Feed additive—Zinc methionine
GB/T 22489-2008
Feed additive—Manganese methionine
GB/T 20802-2006
Feed additive—Cupric methionine
GB/T 18868-2002
Method for determination of moisture,crude protein,crude fat,crude fibre,lysine and methinione in feeds--Near infrared reflectance spectroscopy
GB/T 17810-1999
Feed grade DL-methionine
GB/T 21034-2007
Feed additive—Methionine hydroxy calcium