April 19, 2023, the Ministry of Industry and Information Technology website released the news of 111 industry standards, 9 industry standards in foreign languages and 2 industry standards for the approval of the revised list of documents for public notice.
This includes a number of rubber chemicals industry standards. According to the industry standard revision plan, the relevant standardization technical organizations have completed the standard making and revising work, the public announcement before the release of the standard is to further listen to the views of the community.
The public announcement of the name of the rubber chemicals industry standards and the main content:
1. vulcanization accelerator ZDIBC
Standard No.: HG/T 6158-2023
Standard name: vulcanization accelerator zinc diisobutyl dithiocarbamate (ZDIBC)
Main content: This document specifies the physical and chemical properties of the vulcanization accelerator zinc diisobutyl dithiocarbamate (referred to as the vulcanization accelerator ZDIBC) and other technical requirements, describes the corresponding group batch rules, sampling, test methods, specifies the contents of the logo, packaging, transportation and storage. This document applies to diisobutylamine, carbon disulfide, zinc-containing compounds as the main raw materials by the reaction of the vulcanization accelerator ZDIBC.
2. Rubber antioxidant ZMMBI
Standard No.: HG/T 6159-2023
Standard name: rubber antioxidant 2-mercapto-4 (or 5)-methylbenzimidazole zinc (ZMMBI)
Main content: This document specifies the physical and chemical properties of the rubber antioxidant 2-mercapto-4 (or 5)-methylbenzimidazole zinc (referred to as rubber antioxidant ZMMBI) and other technical requirements, describes the corresponding group batch rules, sampling, test methods, specifies the contents of the logo, packaging, transportation and storage. This document applies to 2-mercapto-4 (or 5)-methylbenzimidazole, liquid alkali, zinc sulfate (or zinc chloride) as the main raw material for the rubber antioxidant ZMMBI.
3. Vulcanization accelerator CBBS
Standard No.：HG/T 6161-2023
Standard name: vulcanization accelerator N - cyclohexyl - bis (2 - benzothiazole) hyposulfenimide (CBBS)
Main content: This document specifies the physical and chemical properties and other technical requirements of the vulcanization accelerator N-cyclohexyl-bis(2-benzothiazole) subsulfonimide (referred to as vulcanization accelerator CBBS), describes the corresponding group batch rules, sampling, test methods, specifies the contents of the logo, packaging, transportation and storage. The document applies to aniline, cyclohexylamine, carbon disulfide as the main raw material by the oxidation reaction of the vulcanization accelerator CBBS.
4. Compounding antioxidant
Standard No.: HG/T 6162-2023
Standard name: Compounding antioxidant test method
Main content: This document specifies the appearance of the compounding antioxidant, heating reduction, fine powder content, particle length in line with the rate, particle diameter, bulk density, solubility, light transmission, component content of the test method.
This document applies to the testing of compounding antioxidant products. The determination method of component content in this method is applicable to the compounding antioxidant with antioxidant content greater than 5%.
5. Rubber auxiliary pre-dispersion masterbatch
Standard No.: HG/T 6163-2023
Standard name: rubber auxiliaries pre-dispersed masterbatch test method
Main content: This document specifies the terms and definitions, test methods of rubber additives pre-dispersion masterbatch. This document applies to rubber additives pre-dispersion masterbatch with non-adhesive surface, rubber additives content greater than 40%, and the carrier is polymer.