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GB/T 6015-2021: Determination of trace dimer and residual extraction agent of butadiene for industrial use - Gas chromatographic method
Status: Valid GB/T 6015: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6015-2021 | English | 199 |
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Determination of trace dimer and residual extraction agent of butadiene for industrial use - Gas chromatographic method
| Valid |
GB/T 6015-2021
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| GB/T 6015-1999 | English | 279 |
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Butadiene for industrial use. Determination of trace dimer. Gas chromatographic method
| Obsolete |
GB/T 6015-1999
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| GB/T 6015-1985 | English | RFQ |
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Butadiene for industrial use--Determination of trace acetonitrile and dimer--Gas chromatographic method
| Obsolete |
GB/T 6015-1985
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PDF similar to GB/T 6015-2021
Basic data | Standard ID | GB/T 6015-2021 (GB/T6015-2021) | | Description (Translated English) | Determination of trace dimer and residual extraction agent of butadiene for industrial use - Gas chromatographic method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G15 | | Word Count Estimation | 10,181 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 6015-2021: Determination of trace dimer and residual extraction agent of butadiene for industrial use - Gas 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.
Determination of trace dimer and residual extraction agent of butadiene for industrial use - Gas chromatographic method
ICS 71.080.10
CCSG15
National Standards of People's Republic of China
Replace GB/T 6015-1999
Trace dimers and dimers in industrial butadiene
Determination of residual extractant
Gas chromatography
Released on 2021-08-20
2022-03-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 6015-1999 "Determination of Trace Dimer in Industrial Butadiene Gas Chromatography", and GB/T 6015-
Compared with.1999, the main technical changes are as follows.
a) Modified the scope of application and added the determination of extractant content (see Chapter 1, Chapter 1 of the.1999 edition);
b) Added the technical content of extractant determination (see Chapter 4, 5, 7, 8, 9, 10);
c) Modified the preparation method of standard samples, and deleted the relevant content of preparing standard samples with n-hexane or n-heptane as the solvent of the original standard (see 5.5,
4.5 and 7.2 of the.1999 edition);
d) Modified the chromatographic column and typical chromatographic operating conditions (see Chapter 6, Chapter 5 of the.1999 edition);
e) Re-determined the method repeatability limit (see Chapter 10, Chapter 9 of the.1999 edition).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the Petrochemical Sub-Technical Committee of the National Chemical Standardization Technical Committee (SAC/TC63/SC4).
Drafting organizations of this document. China National Petroleum Corporation Research Institute of Petrochemical Industry, China Petroleum & Chemical Corporation Shanghai
Petrochemical Research Institute.
The main drafters of this document. Chen Fei, Zhong Ming, Xue Huifeng, Li Jiwen, Shi Dejun, Li Chengwei.
The previous versions of the documents replaced by this document are as follows.
---GB/T 6015-1985, GB/T 6015-1999.
Trace dimers and dimers in industrial butadiene
Determination of residual extractant
Gas chromatography
Warning. This document is not intended to explain all safety issues related to its use. The user is responsible for taking appropriate safety and health
Health measures to ensure compliance with the scope of relevant national laws and regulations.
1 Scope
This document specifies the use of gas chromatography to determine the content of trace dimers and residual extractants in industrial butadiene.
This document is applicable to butadienes such as 4-vinylcyclohexene, 1,2-divinylcyclobutane, 1,5-cyclooctadiene, etc. in industrial butadiene
Determination of residual extractants such as dimer and acetonitrile (ACN), N,N-dimethylformamide (DMF), N-methylpyrrolidone (NMP), two
The lowest measured concentration of polymer is 5mg/kg, and the lowest measured concentration of extractant is 1mg/kg.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 3723 General Rules for Sampling Safety of Industrial Chemical Products
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
GB/T 13290 Industrial Propylene and Butadiene Liquid Sampling Method
3 Terms and definitions
There are no terms and definitions that need to be defined in this document.
4 Method summary
The liquid butadiene sample is injected into the gas chromatograph, and the butadiene dimer and extractant in the sample are effectively used in the chromatographic column
Separate, use a hydrogen flame ionization detector (FID) for detection, and calculate the content of each component to be tested by an external standard method.
5 Materials and reagents
Warning. The following gases are high-pressure compressed gases or extremely flammable gases, and should be used safely.
5.1 Carrier gas
Nitrogen, with a purity of not less than 99.99% (volume fraction), is dried and purified by silica gel and 5A molecular sieve.
5.2 Auxiliary gas
Nitrogen, with a purity of not less than 99.99% (volume fraction), is dried and purified by silica gel and 5A molecular sieve.
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