GB/T 30910-2014Rubber shoes - Determination of migration of 2-Mercaptobenzothiazole and 2,2'-Dithiobis(benzothiazole) (English PDF)
胶鞋 2-巯基苯并噻唑、二硫化二苯并噻唑迁移量的测定
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 8, 2014
Implementation date
December 1, 2014
Scope
GB/T 30910-2014 is the English-translated version of 胶鞋 2-巯基苯并噻唑、二硫化二苯并噻唑迁移量的测定.
GB/T 30910-2014 is the Chinese standard "Rubber shoes - Determination of migration of 2-Mercaptobenzothiazole and 2,2'-Dithiobis(benzothiazole)". Its scope clause reads: This standard specifies the use of liquid chromatography shoes 2-mercapto benzothiazole disulfide dibenzothiazyl of migration to sweat method.
This standard applies to shoes with rubber material of 2-mercapto benzothiazole disulfide dibenzothiazyl due to contact with the amount of sweat and migration Detection. Its clauses include reagents and materials.
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Document preview — GB/T 30910-2014
National Standard of the People's Republic of China
- ICS
- 61.060
- Classification
- Y 78
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents and materials
- 4.1 acetonitrile
- 4.2 acetone
- 4.5 Acidic sweat
- 4.7 dibenzothiazyl disulfide standard
- 4.8 stock standard solution
1 Scope
This standard specifies the use of liquid chromatography shoes 2-mercapto benzothiazole disulfide dibenzothiazyl of migration to sweat method.
This standard applies to shoes with rubber material of 2-mercapto benzothiazole disulfide dibenzothiazyl due to contact with the amount of sweat and migration
Detection.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
Principle 3
Acidic sweat sample was extracted with 2-mercapto benzothiazole, dibenzothiazyl disulfide, extracted with methylene chloride extract was concentrated, acetone
Volume, measured by liquid chromatography, according to their retention time qualitative, with external standard.
4 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682 regulations.
4.1 acetonitrile
chromatography.
4.2 acetone
chromatography.
4.3
dichloromethane.
4.5 Acidic sweat
0.5gL- liter of water containing histidine monohydrochloride (C6H9N3O2 · HCl), 5g of sodium chloride (NaCl), 2.2g of phosphorus
Acid sodium dihydrogen (NaH2PO4 · 2H2O), with 1mol/L sodium hydroxide (NaOH) solution to adjust the pH test solution to 5.5 (± 0.2), this solution
Solution should be now with the current.
4.7 dibenzothiazyl disulfide standard
Formula C14H8N2S4, CAS No. 120-78-5, 99.1% purity.
4.8 stock standard solution
Weigh 2-mercapto benzothiazole and diphenyl disulfide benzothiazole standard each 10.0mg, were dissolved in acetone and is scheduled
Volume to 100mL, the standard stock solution was placed in 4 °C refrigerator in the dark, valid for two months.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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