Forty-eight standards for accelerators and anti-aging agents

I. Eight Methodological Categories

1. Test Method for Sulfenamide Accelerators in Rubber Compounds; Effective Date: June 1, 2008; Standard Number: GB/T 21184-2007; Issuing Authorities: General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration Committee. 2. Determination of Rubber Accelerators—Thin-Layer Chromatography; Effective Date: May 1, 2017.

Standard No.: GB/T 6029-2016; Issuing Authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. 3. Symbols and Abbreviations for Rubber Compounding Agents; Effective Date: July 1, 2018. Standard No.: GB/T 21871-2017; Issuing Authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. 4. Test Method for Antioxidant PPD in Rubber Compounding Agents; Chemical Name: p-Phenylenediamine.

Effective Date: February 1, 2007

Standard No.: GB/T 20646-2006; Issuing Authority: General Administration of Quality Supervision, Inspection and Quarantine and Standardization Administration Committee. 5. Test Methods for Rubber Antioxidants and Vulcanization Accelerators; Effective Date: February 1, 2009. Standard No.: GB/T 11409-2008; Issuing Authority: General Administration of Quality Supervision, Inspection and Quarantine and Standardization Administration Committee. 6. Determination of Rubber Antioxidants—Thin-Layer Chromatography; Effective Date: May 1, 2017. Standard No.: GB/T 4499-2016; Issuing Authority: General Administration of Quality Supervision, Inspection and Quarantine and Standardization Administration Committee. 7. Determination of Rubber Antioxidants—Gas Chromatography–Mass Spectrometry; Effective Date: May 1, 2017. Standard No.: GB/T 33078-2016; Issuing Authority: General Administration of Quality Supervision, Inspection and Quarantine and Standardization Administration Committee. 8. Test Methods for Pre-Dispersed Masterbatches of Rubber Additives; Effective Date: February 1, 2024. Standard No.: HG/T 6163-2023; Issuing Authority: General Administration of Quality Supervision, Inspection and Quarantine and Standardization Administration Committee.

II. 27 sulfur vulcanization accelerator products

(1) Thiosulfonamides 1. Vulcanization Accelerator NOBS Chemical name: N-Oxydiethylenediamine-2-benzothiazole thiosulfonamide Implementation date: June 1, 2007 Standard number: GB/T 8829-2006 Issuing authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee 2. Vulcanization Accelerator TBBS Chemical name: N-tert-Butyl-2-benzothiazole thiosulfonamide Implementation date: November 1, 2008 Standard number: GB/T 21840-2008 Issuing authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee 3. Vulcanization Accelerator DCBS Chemical name: N,N-Dicyclohexyl-2-benzothiazole thiosulfonamide Implementation date: March 1, 2011 Standard number: HG/T 4140-2010 Issuing authority: Ministry of Industry and Information Technology 4. Vulcanization Accelerator CBS Chemical name: N-Cyclohexyl-2-benzothiazole thiosulfonamide Implementation date: June 1, 2015 Standard number: GB/T 31332-2014 Issuing authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee 5. Vulcanization Accelerator TBSI Chemical name: N-tert-Butyl-bis(2-benzothiazole) thiosulfonamide Implementation date: April 1, 2018 Standard number: HG/T 5257-2017 Issuing authority: Ministry of Industry and Information Technology 6. Vulcanization Accelerator CBBS Chemical name: N-Cyclohexyl-bis(2-benzothiazole) thiosulfonimide Implementation date: February 1, 2024 Standard number: HG/T 6159-2023 Issuing authority: Ministry of Industry and Information Technology
(2) Thiazole Compounds 7. Sulfur-Curing Accelerator MBT Chemical Name: 2-Mercaptobenzothiazole Effective Date: June 1, 2015 Standard Number: GB/T 11407-2013 Issuing Authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee 8. Sulfur-Curing Accelerator MBTS Chemical Name: Dibenzothiazyl Disulfide Effective Date: December 1, 2013 Standard Number: GB/T 11408-2013 Issuing Authorities: General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee 9. Sulfur-Curing Accelerator ZMBT Chemical Name: Zinc 2-Mercaptobenzothiazolate Effective Date: June 1, 2015 Standard Number: HG/T 4780-2014 Issuing Authority: Ministry of Industry and Information Technology 10. Sulfur-Curing Accelerator MTT Chemical Name: 3-Methyl-2-thiothiazolidin-2-one Effective Date: April 1, 2019 Standard Number: HG/T 5463-2018 Issuing Authority: Ministry of Industry and Information Technology
(3) Dithiocarbamate Compounds 11. Vulcanization Accelerator ZDMC Chemical Name: Zinc Dimethyldithiocarbamate Implementation Date: June 1, 2013 Standard Number: HG/T 4391-2012 Issuing Authority: Ministry of Industry and Information Technology 12. Vulcanization Accelerator TDEC Chemical Name: Zinc N-Ethyl-N-phenyldithiocarbamate Implementation Date: October 1, 2014 Standard Number: HG/T 4614-2014 Issuing Authority: Ministry of Industry and Information Technology 13. Vulcanization Accelerator ZDBC Chemical Name: Zinc Dibutyldithiocarbamate Implementation Date: June 1, 2015 Standard Number: HG/T 4781-2014 Issuing Authority: Ministry of Industry and Information Technology 14. Vulcanization Accelerator ZDEC Chemical Name: Zinc Diethyldithiocarbamate Implementation Date: June 1, 2015 Standard Number: HG/T 4782-2014 Issuing Authority: Ministry of Industry and Information Technology 15. Vulcanization Accelerator ZBEC Chemical Name: Zinc Dibenzyldithiocarbamate Implementation Date: July 1, 2016 Standard Number: HG/T 4891-2016 Issuing Authority: Ministry of Industry and Information Technology 16. Vulcanization Accelerator ZDIBC Chemical Name: Zinc Diisobutyldithiocarbamate Implementation Date: February 1, 2024 Standard Number: HG/T 6158-2023 Issuing Authority: Ministry of Industry and Information Technology

(4) Thiourea Compounds

17. Vulcanization Accelerator TMTD Chemical Name: Tetramethylthiuram Disulfide Effective Date: April 1, 2008 Standard Number: HG/T 2334-2007 Issuing Authority: National Development and Reform Commission 18. Vulcanization Accelerator TBzTD Chemical Name: Tetrabenzylthiuram Disulfide Effective Date: July 1, 2012 Standard Number: HG/T 4234-2011 Issuing Authority: Ministry of Industry and Information Technology 19. Vulcanization Accelerator TETD Chemical Name: Tetraethylthiuram Disulfide Effective Date: June 1, 2013 Standard Number: HG/T 2344-2012 Issuing Authority: Ministry of Industry and Information Technology 20. Vulcanization Accelerator DPTH Chemical Name: Hexamethylene Bis(thiourea) Disulfide Effective Date: June 1, 2015 Standard Number: HG/T 4799-2014 Issuing Authority: Ministry of Industry and Information Technology 21. Vulcanization Accelerator TMTM Chemical Name: Tetramethylthiuram Monosulfide Effective Date: June 1, 2016 Standard Number: HG/T 4890-2016 Issuing Authority: Ministry of Industry and Information Technology 22. Vulcanization Accelerator TIBTD Chemical Name: Tetrabutylthiuram Disulfide Effective Date: April 1, 2018 Standard Number: HG/T 5260-2017 Issuing Authority: Ministry of Industry and Information Technology 23. Vulcanization Accelerator MPTD Chemical Name: N,N'-Dimethyl-N,N'-diphenylthiuram disulfide (MPTD) Effective Date: July 1, 2021 Standard Number: HG/T 5833-2021 Issuing Authority: Ministry of Industry and Information Technology
(5) Guanidines 24. Sulfur Accelerator DPG Chemical Name: Diphenylguanidine Implementation Date: March 1, 2011 Standard Number: HG/T 2342-2010 Issuing Authority: Ministry of Industry and Information Technology

(6) Thiourea Compounds 25. Sulfurization Accelerator ETU Chemical Name: 1,2-Ethylenethiourea (Ethylene Thiourea) Implementation Date: June 1, 2013 Standard Number: HG/T 2343-2012 Issuing Authority: Ministry of Industry and Information Technology

(7) Other Categories

26. Sulfurization Accelerator ZDBP
Chemical name: Zinc bis(O,O-di-n-butyl dithiophosphate) Effective date: July 1, 2021 Standard number: HG/T 5834-2021 Issuing authority: Ministry of Industry and Information Technology 27. Vulcanization accelerator ZEHBP Chemical name: Zinc bis[O-n-butyl-O-(2-ethylhexyl) dithiophosphate] Effective date: July 1, 2021 Standard number: HG/T 5835-2021 Issuing authority: Ministry of Industry and Information Technology

III. Thirteen types of rubber anti-aging agents

1. Rubber Antioxidant BLE: Chemical name—Acetone Diphenylamine (High-Temperature Condensation Product), 9,9-Dimethylacridine
Effective Date: January 1, 1998
Standard Number: HG/T 2862-1997 Issuing Authority: Technical Supervision Department of the Ministry of Chemical Industry 2. Rubber Antioxidant D Chemical Name: N-Phenyl-β-naphthylamine
Effective Date: February 2, 2001 Standard Number: Q/CNPC 55-2001 Issuing Authority: China National Petroleum Corporation 3. Rubber Antioxidant 4010NA Chemical Name: N-Isopropyl-N’-Phenyl-p-phenylenediamine
Effective date: June 1, 2004 Standard number: GB/T 8828-2003 Issuing authority: General Administration of Quality Supervision, Inspection and Quarantine 4. Rubber antioxidant PAN Chemical name: N-Phenyl-1-naphthylamine Effective date: March 1, 2007 Standard number: GB/T 8827-2006 Issuing authorities: General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration Committee 5. Rubber antioxidant 6PPD Chemical name: N-(1,3-Dimethylbutyl)-N’-aminodiphenylamine Effective date: November 1, 2008 Standard number: GB/T 21841-2008 Issuing authorities: General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration Committee 6. Rubber antioxidant TMQ Chemical name: 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Effective date: October 1, 2012 Standard number: GB/T 8826-2011 Issuing authorities: General Administration of Quality Supervision, Inspection and Quarantine and the Standardization Administration Committee 7. Rubber antioxidant DTPD (3100) Chemical name: N,N’-Dimethylphenyl-p-phenylenediamine Effective date: July 1, 2012 Standard number: HG/T 4233-2011 Issuing authority: Ministry of Industry and Information Technology 8. Rubber antioxidant 8PPD Chemical name: N-(Methylheptyl)-N’-phenyl-p-phenylenediamine Effective date: July 1, 2016 Standard number: HG/T 4896-2016 Issuing authority: Ministry of Industry and Information Technology 9. Rubber antioxidant 7PPD Chemical name: N-(1,4-Dimethylpentyl)-N’-phenyl-p-phenylenediamine Effective date: April 1, 2017 Standard number: HG/T 5075-2016 Issuing authority: Ministry of Industry and Information Technology 10. Rubber antioxidant TMPTA Chemical name: 2,4,6-Tris(N-1,4-Dimethylpentyl-p-phenylenediamino)-1,3,5-triazine Effective date: April 1, 2017 Standard number: HG/T 5083-2016 Issuing authority: Ministry of Industry and Information Technology 11. Rubber antioxidant MMBI Chemical name: 2-Mercapto-4(or 5)-methylbenzimidazole Effective date: April 1, 2018 Standard number: HG/T 5261-2017 Issuing authority: Ministry of Industry and Information Technology 12. Rubber antioxidant MBI Chemical name: 2-Mercapto-benzimidazole Effective date: April 1, 2018 Standard number: HG/T 5262-2017 Issuing authority: Ministry of Industry and Information Technology 13. Rubber antioxidant ZMMBI Chemical name: 2-Mercapto-4(or 5)-methylbenzimidazole zinc Effective date: February 1, 2024 Standard number: HG/T 6159-2023 Issuing authority: Ministry of Industry and Information Technology