GB/T 6029-2016 English PDF

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GB/T 6029-2016: Rubber, vulcanized -- Determination of accelerants -- Thin layer chromatographic method
Status: Valid

GB/T 6029: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6029-2016	199	Add to Cart	3 days	Rubber, vulcanized -- Determination of accelerants -- Thin layer chromatographic method	Valid
GB/T 6029-1996	199	Add to Cart	2 days	Vulcanized rubber. Determination ofaccelerant. Thin layer chromatographic method	Obsolete
GB 6029-1985	199	Add to Cart	2 days	Vulcanized rubber--Determination of accelerant--Thin layer chromatographic method	Obsolete

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Basic data

Standard ID: GB/T 6029-2016 (GB/T6029-2016)
Description (Translated English): Rubber, vulcanized -- Determination of accelerants -- Thin layer chromatographic method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G40
Classification of International Standard: 83.060
Word Count Estimation: 10,131
Date of Issue: 2016-10-13
Date of Implementation: 2017-05-01
Older Standard (superseded by this standard): GB/T 6029-1996
Regulation (derived from): National Standard Notice No.1716 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 6029-2016: Rubber, vulcanized -- Determination of accelerants -- Thin layer chromatographic method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rubber, vulcanized - Determination of accelerants - Thin layer chromatographic method ICS 83.060 G40 National Standards of People's Republic of China Replace GB/T 6029-1996 Determination of vulcanized rubber accelerators - Thin layer chromatography Rubber, vulcanized-Determination of apcelerants- 2016-10-13 released 2017-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 6029-1996 "Determination of accelerator in vulcanized rubber by thin layer chromatography". With GB/T 6029-1996 Compared to the main technical changes are as follows. --- Removal of the developing agent "n-hexane-toluene solution" (see.1996 edition 4.1.4); - increased specification for concentrated ammonia concentration (see 4.2.1); - increased specification for instrumentation requirements (see 5.1, 5.2, 5.3); - increased specification of the instrument name (see 5.4); - increased glass plate specification requirements (see 5.9); - increased ultrasonic extraction (see 7.1); - modified the way in which the standard spectrum was recorded and preserved (see 10.1, 10.1 of.1996); - Added part of the test report (see Chapter 11). This standard is proposed by the China Petroleum and Chemical Industry Association. This standard by the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35) centralized. The drafting unit of this standard. Shuangqian Group Co., Ltd., Xishuangbanna State Quality and Technical Supervision Comprehensive Testing Center, Guangzhou South China Rubber Tire Tire Co., Ltd., China National Petroleum Corporation Dushanzi Petrochemical Company Research Institute, Beijing Rubber Industry Research and Design Institute. The main drafters of this standard. Gu Qin, Dao Jianhua, Shang Weijun, Sun Feng, Fan Shanying, Pei Chengyu, Bi Xuerui, Zhou Xiuliang, Wang Wenxiang, Ding Xiaoying. This standard replaced the previous version of the standard release. --- GB 6029-1985, GB/T 6029-1996. Determination of vulcanized rubber accelerators - Thin layer chromatography WARNING. Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible security issues, It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set forth in the relevant national regulations.

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. ......

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