GB/T 41193-2021 Assessment for fertility of anaerobic digested fertilizer

NY/T 497-2002 Field experiment technology of fertilizer effect testing GB 2635-1992 Flue-cured tobacco GB/T 5009.5-2003 Determination of protein in foods GB 5009.5-2010 National food safety standard Determination of protein in foods GB 5009.5-2016 National Standards for Food Safety - Determination of Protein in Foods GB/T 5009.9-2003 Determination of starch in foods GB/T 5009.9-2008 Determination of starch in foods GB 5009.9-2016 Food Safety National Standard Determination of Starch in Foods GB 5009.9-2023 National Food Safety Standard Determination of Starch in Foods GB/T 5009.33-2003 Determination of nitrite and nitrate in foods GB/T 5009.33-2008 Determination of nitrite and nitrate in foods GB 5009.33-2010 National food safety standard Determination of nitrite and nitrate in foods GB 5009.33-2016 National Standards for Food Safety - Determination of Nitrite and Nitrate in Foods GB/T 5009.86-2003 Determination of total ascorbic acid in fruits, vegetables and derived products—Flourometric method and colorimetric method GB 5009.86-2016 National standard for food safety: Determination of ascorbic acid in food GB/T 5009.157-2003 Determination of organic acid in foods GB 5009.157-2016 National Standards for Food Safety: Determination of Organic Acids in Foods GB/T 5515-1985 Inspection of grain and oilseeds Methods for determination of grude fibre GB/T 5515-2008 Inspection of grain and oils—Determination of crude fibre content in grain—Method with intermediate filtration GB/T 8305-2002 Tea—Determination of water extracts content GB/T 8305-2013 Tea—Determination of water extracts content GB/T 8312-2002 Tea—Determination of caffeine content GB/T 8312-2013 Tea—Determination of caffeine content GB/T 8313-2002 Tea—Determination of tea polyphenols content GB/T 8313-2008 Determination of total polyphenols and catechins content in tea GB/T 8313-2018 Determination of total polyphenols and catechins content in tea GB/T 8314-2002 Tea—Determination of free amino acids content GB/T 8314-2013 Tea—Determination of free amino acids content GB/T 14487-1993 The terms of tea sensory tests GB/T 14487-2008 Terms of tea sensory tests GB/T 14487-2017 Tea vocabulary for sensory evaluation GB/T 14488.1-1993 Method for determination of oil content in oilseeds GB/T 14488.1-2008 Oilseeds—Determination of oil content GB/T 20392-2006 Test method of properties of cotton fibers by high volume instruments GB/T 20392-2023 Test method for physical properties of cotton fibers—High volume instruments method GB/T 21266-2007 Determination of total capsaicinoid content and representation of pungency degree in capsicum and its products GB/T 22996-2008 Determination of ginsenosides in ginseng—LC-UV method NY/T 1119-2019 NY/T 1119-2019 Soil Quality Monitoring Techniques Specification NY/T 1278-2007 The determination of soluble sugars in vegetables and their products using copper reduction and iodometry NY/T 1295-2007 The determination of total flavonoids content in buckwheat and its products NY/T 2637-2014 NY/T 2637-2014 Fruits and Vegetables Determination of Soluble Solids Content by Refractometer Method GB 5009.5-2025 National Food Safety Standard: Determination of Protein in Food GB 5009.33-2025 National Standards for Food Safety - Determination of Nitrite and Nitrate in Foods