GB/T 6029-2016Rubber, vulcanized - Determination of accelerants - Thin layer chromatographic method (English PDF)
硫化橡胶 促进剂的测定 薄层色谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 13, 2016
Implementation date
May 1, 2017
Scope
GB/T 6029-2016 is the English-translated version of 硫化橡胶 促进剂的测定 薄层色谱法.
GB/T 6029-2016 is the Chinese standard "Rubber, vulcanized - Determination of accelerants - Thin layer chromatographic method". Its scope clause reads: This standard specifies the use of thin layer chromatography to determine the vulcanized rubber accelerator method.
This standard applies to vulcanized rubber and rubber accelerators (thiazoles, sulfenamides, thiuram, dithiocarbamates and Guanidine) and its partial transformants. Its clauses include normative reference documents; principle; reagent.
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Document preview — GB/T 6029-2016
National Standard of the People's Republic of China
- ICS
- 83.060
- Classification
- G 40
- Replacing
- GB/T 6029-1996
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 principle
- 4 reagent
1 Scope
This standard specifies the use of thin layer chromatography to determine the vulcanized rubber accelerator method.
This standard applies to vulcanized rubber and rubber accelerators (thiazoles, sulfenamides, thiuram, dithiocarbamates and
Guanidine) and its partial transformants.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 3516 Determination of rubber solvent extract
3 principle
In the thin layer chromatography process, due to the different chemical structure of the promoter and its conversion, the difference in the distribution coefficient in the liquid-solid phase leads to
This achieves the purpose of separation. In the thin layer or coated with silica gel on the glass plate for point-like, expand and color. And then press the spots in the pattern
The color, shape and ratio shift Rf to determine the corresponding accelerator.
4 reagent
4.1 General provisions
4.1.1
The solution used in this standard is expressed as "%" (except for special instructions).
4.1.2
When the solution appears turbidity, precipitation or color changes and other phenomena, should be re-prepared.
4.1.3
Unless otherwise stated, only the reagents identified as analytical reagents and distilled or deionized water or comparable purity are used in the analysis.
4.2 Development agent
4.2.1 concentrated ammonia
Mass fraction of 25% to 28%.
4.2.2 anhydrous ethanol - concentrated ammonia - toluene solution
Take 0.5 mL of absolute ethanol and 0.05 mL of concentrated aqueous ammonia, and add to 100 mL of toluene solution.
4.2.3 Acetone - concentrated ammonia - toluene solution
Take 10 mL of acetone and 0.2 mL of concentrated aqueous ammonia and add to 100 mL of toluene.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 6029
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 6029-2016 | Rubber, vulcanized - Determination of accelerants - Thin layer chromatographic method | current edition | Current |
| GB/T 6029-1996 | Rubber, vulcanized - Determination of accelerants - Thin layer chromatographic method | previous edition | Superseded |
This page sells the current edition, GB/T 6029-2016. Earlier editions are listed for reference only.
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