1 Scope
This standard specifies the requirements, test methods, inspection rules and marking, packaging, transport, storage of sodium citrate dihydrate.
This standard is applicable to sodium citrate dihydrate which is fermented and purified out of starchiness or sugariness.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest editions of the normative documents referred to apply.
GB/T 601 Chemical Reagent - Preparations of Standard Volumetric Solutions
GB/T 602 Chemical reagent - Preparations of Standard Solutions for Impurity(GB/T602-200, ISO6353-1:1982, NEQ)
GB/T 603 Chemical Reagent - Preparations of Reagent Solutions for Use in Test Methods(GB/T 603-2002, ISO 6353-1:1982, NEQ)
GB/T 606 "Chemical Reagent - General Method for the Determination of Water - Karl Fischer Method"
GB/T 500911 Determination of Total Arsenic and Abio-arsenic in Food
GB/T 5009.12 Method for Determination of Lead in Foods
GB/T 6682 Water for Analytical Laboratory Use - Specification and Test Methods (GB/T 6682-2008, ISO 3696:1987, MOD)
3 Chemical Name, Molecular Formula, Structural Formula and Relative Molecular Mass
3.1 Chemical name: 2-hydroxy propane-1,2,3-tricarboxylic acid potassium
3.2 Molecular formula: C6H5Na3O7•2H2O.
3.3 Relative molecular mass: 294.10.
3.4 Structural formula:
Foreword
1 Scope
2 Normative References
3 Chemical Name, Molecular Formula, Structural Formula and Relative Molecular Mass
4 Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
