This standard specifies the method for the determination of protein in food by the Kjeldahl method. This standard applies to the determination of protein in meat and poultry products, soybean products, aquatic products, condiments, grain products, fermented products, cakes, vegetable protein drinks and other foods.
GB/T 14771-1993 history
2010GB 5009.5-2010 National food safety standard Determination of Protein in foods
1993GB/T 14771-1993 Method for determination of protein content in foods
GB/T 14771-1993 Method for determination of protein content in foods was changed to GB 5009.5-2010 National food safety standard Determination of Protein in foods.