GB 5009.309-2025 National standard for food safety: Determination of asparagine and glutamine in food

GB 5009.1-2025 Food Safety National Standards General Principles of Physical and Chemical Tests GB 5009.5-2025 GB 5009.6-2025 National Standards for Food Safety - Determination of Fat in Foods GB 5009.18-2025 GB 5009.31-2025 GB 5009.33-2025 National Standards for Food Safety - Determination of Nitrite and Nitrate in Foods GB 5009.42-2025 GB 5009.120-2025 National Food Safety Standards: Determination of Propionic Acid and Its Salts in Foods GB 5009.137-2025 The National Standard for Food Safety: Determination of Antimony in Foods GB 5009.183-2025 National Food Safety Standards: Determination of Urease in Foods GB 5009.229-2025 National standard for food safety - Determination of acid value in food GB 5009.247-2025 National Food Safety Standards: Determination of Neohetrazine in Foods GB 5009.256-2025 GB 5009.268-2025 GB 5009.300-2025 The Determination of L-carnitine in Foods National Standard of Food Safety GB 5009.301-2025 National Standards for Food Safety - Determination of osmotic pressure in food GB 5009.302-2025 GB 5009.303-2025 GB 5009.304-2025 National Standards for Food Safety: Determination of Tri- and Hexavalent Chromium in Foods GB 5009.305-2025 National Standards for Food Safety: Determination of Bisphenol A, Bisphenol F, and Bisphenol S in Foods GB 5009.306-2025 GB 5009.307-2025 National Standards for Food Safety: Determination of Formaldehyde in Foods GB 5009.308-2025 National standard for food safety - Determination of ascorbic acid palmitate in food