GB/T 3915-2021 English PDF

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GB/T 3915-2021: Styrene for industrial use
Status: Valid

GB/T 3915: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3915-2021	199	Add to Cart	3 days	Styrene for industrial use	Valid
GB/T 3915-2011	279	Add to Cart	3 days	Styrene for industrial use	Obsolete
GB 3915-1998	239	Add to Cart	2 days	Styrene for industrial use	Obsolete
GB 3915-1990	RFQ	ASK	3 days	Styrene for industrial use--Specification	Obsolete

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Basic data

Standard ID: GB/T 3915-2021 (GB/T3915-2021)
Description (Translated English): Styrene for industrial use
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G16
Word Count Estimation: 10,166
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 3915-2021: Styrene for industrial use

---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.
Styrene for industrial use ICS 71.080.15 CCSG16 National Standards of People's Republic of China Replace GB/T 3915-2011 Industrial Styrene 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 3915-2011 "Industrial Styrene". Compared with GB/T 3915-2011, except for editorial changes, the main The technical changes are as follows. a) The description of the propylene oxide co-production process has been added to the "Scope" chapter (see Chapter 1, Chapter 1 of the.2011 edition); b) Two chapters "Terms and Definitions" and "Product Classification" have been added (see Chapters 3 and 4); c) Modified the product index classification method (see Table 1, Table 1 in the.2011 edition); d) Modified the product appearance index requirements (see Table 1, Table 1 of the.2011 edition); e) Added quality indicators for phenylacetylene and total sulfur projects (see Table 1, Table 1 in the.2011 edition); f) Move the water and benzene items to Table 1 (see Table 1, Chapter 4 of the.2011 edition); g) The test methods for phenylacetylene and total sulfur have been added (see Table 1, Table 1 of the.2011 edition); h) Added water test methods and arbitration methods (see Table 1, Chapter 4 of the.2011 edition); i) The test method and arbitration method of chromaticity have been added (see Table 1, Table 1 of the.2011 edition); j) The relevant regulations for the use of other polymerization inhibitors have been added (see Table 1, Table 1 of the.2011 edition); k) Added test methods and arbitration methods for polymerization inhibitors (see Table 1, Table 1 in the.2011 edition); l) Modified sampling and inspection rules (see Chapter 6 and Chapter 7, Chapter 4 of the.2011 edition); m) Modified marking, packaging, transportation and storage (see Chapter 8 and Chapter 9, Chapter 5 of the.2011 edition); n) Move the safety-related reminder content into Appendix A (see Appendix A, Chapter 6 of the.2011 edition); o) The content that is compared with the chapter number of ASTM D2827-08 is deleted (see Appendix A of the.2011 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). This document was drafted by. China Petroleum & Chemical Corporation Beijing Yanshan Branch, China Petroleum & Chemical Corporation Shanghai Petrochemical Co., Ltd. Petrochemical Research Institute, Guangdong Xinhua Yuehuade Technology Co., Ltd. The main drafters of this document. Cui Guanghong, Wang Jing, Yu Hongzhu, Cheng Hong, Li Chengwei, Kan Qun, Wang Chuan. The previous versions of this document and the documents replaced are as follows. ---First published in 1983 as GB/T 3915-1983, first revised in.1990.It was revised for the second time in.1998..2011 third Revisions. ---This is the fourth revision. Industrial Styrene Warning. If the appropriate precautions are not followed, the products in this document may be There is danger. This document does not intend to make recommendations for all safety issues related to this product. Before using this document, the user is responsible for Take appropriate safety and precautionary measures, and determine the applicability of relevant regulatory restrictions.

1 Scope

This document specifies the product classification, technical requirements and test methods, sampling, inspection rules, marking, labeling and accompanying of styrene for industrial use. Documents, packaging, transportation and storage. This document is applicable to industrial styrene produced by ethylbenzene dehydrogenation process, propylene oxide co-production process and pyrolysis gasoline extraction process. The structural formula of styrene. C6H5-CH=CH2, relative molecular mass. 104.15 (according to.2018 international relative atomic mass).

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 605 General method for color determination of chemical reagents GB/T 3723 General Rules for Sampling Safety of Industrial Chemical Products GB/T 6283 Determination of water content in chemical products Karl Fischer method (general method) GB/T 6324.6 Test methods for organic chemical products Part 6.Determination of the color of liquids Tristimulus colorimetry GB/T 6324.8 Test Methods for Organic Chemical Products Part 8.Determination of Moisture in Liquid Products Karl Fischer Coulometric Method GB/T 6678 General Rules for Sampling of Chemical Products GB/T 6680 General Rules for Sampling of Liquid Chemical Products GB/T 8170 Numerical rounding rules and the expression and determination of limit values GB/T 12688.1 Test method of styrene for industrial use. Part 1.Determination of purity and hydrocarbon impurities. Gas chromatography GB/T 12688.3 Test method of styrene for industrial use Part 3.Determination of polymer content GB/T 12688.4 Test method of styrene for industrial use. Part 4.Determination of peroxide content by titration method GB/T 12688.5 Test method of styrene for industrial use. Part 5.Determination of total aldehyde content by titration method GB/T 12688.8 Test method of styrene for industrial use Part 8.Determination of polymerization inhibitor (p-tert-butylcatechol) content Photometric method GB/T 12688.9 Test method of styrene for industrial use Part 9.Determination of trace benzene gas chromatography GB/T 12688.10 Test method of styrene for industrial use. Part 10.Determination of oxygenated compounds. Gas chromatography SH/T 1147 Determination of Trace Sulfur in Industrial Aromatics by Microcoulometric Method SH/T 1820 Industrial aromatic hydrocarbons. Determination of trace sulfur. Ultraviolet fluorescence method

3 Terms and definitions

There are no terms and definitions that need to be defined in this document. ......

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