T/NJSS 001-2023 Industrial fumaric acid
T/NJSS 001-2023 Industrial fumaric acid
Basic Information
Scope
Scope: This document specifies the classification, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of industrial fumaric acid. This document applies to industrial fumaric acid (hereinafter referred to as the product) produced from acid water (mainly consisting of maleic acid and a small amount of phthalic acid and benzoic acid) generated by the exhaust gas absorption tower of phenoxide plants, through isomerization reaction, decolorization, crystallization, and drying. It is mainly used as a raw material for the production of unsaturated resins, alkyd resins, paper additives, etc. Main technical contents: 1. Scope. 2. Normative reference documents. 3. Terms and definitions. 4. Classification. 5. Requirements. 6. Test methods. 7. Inspection rules. 8. Marking, packaging, transportation, and storage. 9. Appendix A (normative appendix): Benzoic acid test method. 10.