HG/T 4792-2014 (English Version) PDF

Scope: This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of industrial DL-tartaric acid. This standard applies to tartaric acid produced by oxidation and hydrolysis of maleic anhydride and hydrogen peroxide as raw materials. This product is mainly used to produce tartrate products. It also plays a very important role in tanning, photography, glass, enamel, telecommunications equipment and other industries. Molecular formula: CHO ? nHO (crystal product n = 1, anhydrous product n = 0) Chemical name: 2,3-dihydroxysuccinic acid Relative molecular mass: crystal product 168.11; anhydrous product 150.09 (according to 2011 year international relative atomic mass)

HG/T 4792-2014 Referenced Document

GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 617 Chemical reagent General method for the determination of melting range
GB/T 6284 Chemical products for industrial use General method for determination of water content The loss mass on drying method
GB/T 6678-2003 General principles for sampling chemical products
GB/T 9728 Chemical reagent.General method for the determination of sulphate