GB 1894-2005 Food additive—Anhydrous sodium sulphite

GB 1894-1992 Food additive Anhydrous sodium sulphite

GB 1886.8-2015 Food Safety National Standard - Food Additives - Sodium Sulfite

GB/T 3049-1986 Chemical products for industrial use—General method for determination of iron content—o-Phenanthroline spectrophotometric method GB/T 5009.74-2003 Method for limit test of heavy metals in food additives GB/T 5009.76-2003 Determination of arsenic in food additives GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 6678-2003 General principles for sampling chemical products HG/T 3696.1-2011 Inorganic chemical products for chemical analysis: Preparation of standard solutions, preparations, and products - Part 1: Preparation of standard titration solutions HG/T 3696.2-2011 Inorganic chemical products - Preparation of standard solutions, preparations and articles for chemical analysis - Part 2: Preparation of impurity standard solutions HG/T 3696.3-2011 Inorganic chemical products for chemical analysis - Preparation of standard solutions, preparations, and articles - Part 3: Preparation of preparations and articles HG/T 3696.1-2002 Preparation of standard titration solution for chemical analysis of inorganic chemical products HG/T 3696.2-2002 Preparation of Standard Solutions for the Chemical Analysis of Inorganic Chemical Products with Impurities HG/T 3696.3-2002 The preparation of preparations and products used for chemical analysis of inorganic chemical products GB/T 191-2025 Graphical symbols marking for handling and storage of packages