This standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, packaging, transportation and storage of L-theanine. This standard applies to L-theanine that is made from biomass as raw material and refined through biological fermentation, enzymatic conversion or extraction.
QB/T 4263-2011 Referenced Document
GB 4789.1 National Food Safety Standard General Rules for Microbiological Inspection of Food*, 2016-12-23 Update
GB 4789.10 National Food Safety Standard Food Microbiology Test Staphylococcus aureus Test*, 2016-12-23 Update
GB 4789.11 National food safety standard food microbiological examination β-hemolytic streptococcus test*, 2014-12-01 Update
GB 4789.12 National Food Safety Standard Food Microbiological Inspection Clostridium botulinum and Botulinum Toxin Inspection*, 2016-12-23 Update
GB 4789.13 National Food Safety Standard Microbiological Examination of Food Hygiene - Examination of Clostridium Perfringens*, 2012-05-17 Update
GB 4789.14 National Food Safety Standard Food Microbiological Examination Examination of Bacillus cereus*, 2014-12-01 Update
GB 4789.15 National Food Safety Standard Food Microbiological Examination Mold and Yeast Count*, 2016-10-19 Update
GB 4789.16 Morphological identification of common toxin-producing molds in food microbiological examination of national food safety standards*, 2016-12-23 Update
GB 4789.17 National Food Safety Standards Food Microbiological Inspection Meat and Meat Products Sampling and Sample Processing*, 2024-02-08 Update
GB 4789.18 National Food Safety Standards Food Microbiology Testing Milk and Dairy Products Sampling and Sample Processing*, 2024-02-08 Update
GB 4789.2 National Food Safety Standard Food Microbiological Inspection Determination of Total Bacterial Colony*, 2022-06-30 Update
GB 4789.20 National food safety standards Food microbiology inspection Sampling and sample processing of aquatic products and their products*, 2024-02-08 Update
GB 4789.27 Food Hygiene Microbiology Test Antibiotic Residue Test in Fresh Milk
GB 4789.28 National food safety standards Food microbiology testing Quality requirements for culture media and reagents*, 2024-02-08 Update
GB 4789.29 National Food Safety Standard Food Microbiology Examination Burkholderia Gladioli*, 2020-09-11 Update
GB 4789.3 National Food Safety Standard Food Microbiology Determination Coliform Bacteria Count*, 2017-06-23 Update
GB 4789.30 National Food Safety Standard Food Microbiology Test for Listeria monocytogenes*, 2016-12-23 Update
GB 4789.31 Enterobacteriaceae phage diagnostic test for Salmonella, Shigella and diarrheagenic Escherichia coli in food microbiology testing*, 2013-11-29 Update
GB 4789.34 National Food Safety Standard Food Microbiology Test Bifidobacteria Test*, 2016-12-23 Update
GB 4789.35 National Food Safety Standard Food Microbiology Test Lactic Acid Bacteria Test*, 2023-09-06 Update
GB 4789.36 National Food Safety Standard Food Microbiological Inspection Escherichia coli O157H7NM Inspection*, 2016-12-23 Update
GB 4789.38 National Food Safety Standard Microbiological Examination of Food Hygiene - Enumeration of Escherichia Coli *, 2012-05-17 Update
GB 4789.41 National Food Safety Standard Food Microbiology Test Enterobacteriaceae Test*, 2016-08-31 Update
GB 4789.42 National Food Safety Standard Food Microbiology Test Norovirus Test*, 2016-12-23 Update
GB 4789.43 National Food Safety Standard Food Microbiological Examination Determination of Antibacterial Activity of Microbial Enzyme Preparations*, 2016-12-23 Update
GB 4789.44 National Food Safety Standard Food Microbiology Test Vibrio Vulnificus Test*, 2020-09-11 Update
GB 4789.5 National Food Safety Standard Microbiological Examination of Food Hygiene - Examination of Shigella *, 2012-05-17 Update
GB 4789.6 National Food Safety Standard Food Microbiological Inspection Examination of Diarrhea-causing Escherichia coli*, 2016-12-23 Update
GB 4789.7 Food microbiology test Vibrio parahaemolyticus test*, 2013-11-29 Update
GB 4789.8 National Food Safety Standard Food Microbiology Inspection Yersinia Enterocolitica*, 2016-08-31 Update
GB 4789.9 National Food Safety Standard Food Microbiology Inspection Campylobacter jejuni*, 2014-12-01 Update
GB 5009.11 National food safety standards Determination of total arsenic and inorganic arsenic in food*, 2024-02-08 Update
GB 5009.3-2010 National food safety standard Determination of moisture in foods
GB 5009.4-2010 National food safety standard Determination of ash in foods
GB 5009.74 National Food Safety Standards Tests for Limits of Heavy Metals in Food Additives*, 2016-03-21 Update
GB/T 191 Packaging.Pictorial marking for handling of goods
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*, 2023-08-06 Update
GB/T 613 Amendment No. 1 of National Standard "General Method for Determination of Specific Optical Rotation Power (Specific Optical Rotation) of Chemical Reagents"
GB/T 6678 General principles for sampling chemical products
GB/T 6679 General rules for sampling solid chemical products
GB/T 6682 Water for analytical laboratory use.Specification and test methods