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GB/T 29613.2-2014 PDF English

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GB/T 29613.2-2014: Rubber -- Analysis by pyrolytic gas-chromatographic methods -- Part 2: Determination of styrene/butadiene/isoprene ratio
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GB/T 29613.2-2014English234 Add to Cart 3 days [Need to translate] Rubber -- Analysis by pyrolytic gas-chromatographic methods -- Part 2: Determination of styrene/butadiene/isoprene ratio

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Basic data

Standard ID GB/T 29613.2-2014 (GB/T29613.2-2014)
Description (Translated English) Rubber -- Analysis by pyrolytic gas-chromatographic methods -- Part 2: Determination of styrene/butadiene/isoprene ratio
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G40
Classification of International Standard 83.060
Word Count Estimation 12,166
Date of Issue 12/12/2014
Date of Implementation 6/1/2015
Quoted Standard ISO 1407-2011
Adopted Standard ISO 7270-2-2012, IDT
Regulation (derived from) National Standards Bulletin 2014 No. 30
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
Summary This Standard specifies the determination in raw rubber, unvulcanized rubber, vulcanized rubber to homopolymers and copolymers using pyrolysis gas chromatography and (or) in the form of a copolymer of styrene (ST)/butadiene (BD)/iso pentadiene (IP) ratios

GB/T 29613.2-2014: Rubber -- Analysis by pyrolytic gas-chromatographic methods -- Part 2: Determination of styrene/butadiene/isoprene ratio





---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 Analysis by pyrolytic gas-chromatographic methods Part 2. Determination of styrene/butadiene/isoprene ratio ICS 83.060 G40 National Standards of People's Republic of China Rubber pyrolysis gas chromatography - Part 2. Determination of styrene/butadiene/isoprene ratio Part 2. Determinationofstyrene/butadiene/isopreneratio (ISO 7270-2.2012, IDT) Issued on. 2014-12-22 2015-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 29613 "rubber pyrolysis gas chromatography" is divided into two parts. --- Part 1. Polymer (single and with) the identification; --- Part 2. styrene/butadiene/isoprene ratio measurement. This is Part 2 GB/T 29613 of. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with ISO 7270-2.2012 "Rubber pyrolysis gas chromatography - Part 2. Styrene/D Diene/isoprene ratio determination. " This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee rubber and rubber products, Common test methods for Club (SAC/TC35/SC2) centralized. This section is drafted. Guizhou Tyre Co., Ltd. tournament round, PetroChina Dushanzi Petrochemical Company Institute, Beijing Rubber Industry Research and Design Institute. The main drafters of this section. Zhou Ji, Ho Sin, LIU Ai-qin, Wang Deyu, Sun Feng, Wang Wenxiang, Zhounai Dong, Dong Caiyu. Rubber pyrolysis gas chromatography - Part 2. Determination of styrene/butadiene/isoprene ratio Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues, Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations. Tip. Use the procedures prescribed in this section is possible to use or produce some substance, or may produce some waste. This may give present Harm to the environment, safe handling and disposal should refer to the appropriate file.

1 Scope

This section GB/T 29613 specifies the use of pyrolysis gas chromatography measurement to copolymer rubber in raw, uncured rubber, vulcanized rubber Thereof, a homopolymer and (or) the form of a copolymer of styrene (ST)/butadiene (BD)/isoprene (IP) ratios. This section applies to the determination of styrene/butadiene/isoprene copolymers or terpolymers and mixtures thereof. Note 1. The test requires the use of personnel in this section should have some theoretical knowledge and practical experience to be able to properly operate in accordance with this section and analysis test results. Note 2. The resin will be affected by the high sulfur content and use of this method for the determination of styrene/butadiene/isoprene ratio.

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. ISO 1407.2011 Rubber - Determination of solvent extract (Rubber-Determinationofsolventextract) Principle 3 First, according to the known styrene (ST)/butadiene (BD)/isoprene (IP) and the ratio of the gas chromatogram of the sample, lysate assay Each component (styrene, butadiene and isoprene) as a percentage of the sum of the three-component, calibration curve. Under the same conditions as unknown samples and analyzing the cleavage products of pyrolysis, the samples according to the calibration curve determined styrene, butadiene And isoprene ratio.

4 Reagents

All reagents should be of analytical grade. 4.1 solvent extraction Suitable solvents, such as acetone, methanol, methyl ethyl ketone. 4.2 The carrier gas Nitrogen or helium. ...

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