GB/T 8659-2018 English PDF

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GB/T 8659-2018: Butadiene rubber (BR) 9000
Status: Valid

GB/T 8659: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8659-2018	119	Add to Cart	3 days	Butadiene rubber (BR) 9000	Valid
GB/T 8659-2008	279	Add to Cart	3 days	Rubber, butadiene (BR) 9000	Obsolete
GB/T 8659-2001	279	Add to Cart	3 days	Rubber, butadiene (BR) 9000	Obsolete
GB 8659-1988	RFQ	ASK	3 days	Rubber, butadiene-BR9000 (Cis-1. 4-polybutadiene rubber)	Obsolete

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Basic data

Standard ID: GB/T 8659-2018 (GB/T8659-2018)
Description (Translated English): Butadiene rubber (BR) 9000
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G35
Classification of International Standard: 83.060
Word Count Estimation: 6,643
Date of Issue: 2018-12-28
Date of Implementation: 2019-07-01
Older Standard (superseded by this standard): GB/T 8659-2008
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 8659-2018: Butadiene rubber (BR) 9000

---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.
Butadiene rubber(BR)9000 ICS 83.060 G35 National Standards of People's Republic of China Replace GB/T 8659-2008 Butadiene rubber (BR) 9000 Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 8659-2008 "butadiene rubber (BR) 9000", compared with GB/T 8659-2008 main technical changes as follows. --- Revised the normative reference document (see Chapter 2, Chapter 2 of the.2008 edition); --- Revised the appearance requirements (see Table 1, 3.1 of the.2008 edition); --- Increased vulcanization properties (see Table 1); --- Revised the note in Table 1 as a clause (see Table 1, Table 1 of the.2008 edition); ---Modified inspection rules (see Chapter 4, Chapter 4 of the.2008 edition); ---Added logos and accompanying documents (see Chapter 5); ---Modified packaging, marking, storage and transportation (see Chapter 6, Chapter 5 of the.2008 edition); --- Removed Appendix A. This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35). This standard was drafted. China Petroleum and Chemical Corporation Beijing Yanshan Branch, China National Petroleum Corporation Petroleum Chemical Research Institute, Daqing Petrochemical Company Quality Inspection Center, China Petroleum and Chemical Corporation Qilu Branch. The main drafters of this standard. Peng Jinrui, Cui Guanghong, Luo Xianhui, Wu Yi, Yu Hongyu, Shu Guangyao, Bi Wenxin, Jiang Xiurong. The previous versions of the standards replaced by this standard are. ---GB/T 8659-1988, GB/T 8659-2001, GB/T 8659-2008. Butadiene rubber (BR) 9000

1 Scope

This standard specifies the technical requirements and test methods, inspection rules and packaging, marking, transportation and storage of butadiene rubber (BR) 9000. Deposit requirements. This standard applies to cis-1,4-polybutadiene rubber prepared by solution polymerization of 1,3-butadiene under a nickel catalyst system.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 528-2009 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber GB/T 1232.1-2016 Determination of the viscosity of the slabs - Part 1 GB/T 4498.1-2013 Determination of rubber ash - Part 1 GB/T 8660-2018 solution polymerization type butadiene rubber (BR) evaluation method GB/T 15340 natural and synthetic raw rubber sampling and its sample preparation method GB/T 19187 Synthetic raw rubber sampling inspection program GB/T 19188 Natural raw rubber and synthetic raw rubber storage guide GB/T 24131.1-2018 Determination of volatile content of raw rubber - Part 1 . Hot roll method and oven method GB/T 24797.1-2009 Film for rubber packaging - Part 1. Butadiene rubber (BR) and styrene-butadiene rubber (SBR) GB/T 25268-2010 Rubber vulcanizer use guide

3 Technical requirements and test methods

The technical specifications of the BR9000 should meet the requirements of Table 1. Table 1 BR9000 technical requirements and test methods project index Class I, Class II, Class III experiment method Exterior Light translucent, primary shape is block Shape, no coking particles, mechanical impurities And oil Light translucent, The primary shape is Blocky, without machine Mechanical impurities Visual inspection Volatile matter (mass fraction) /% ≤ 0.50 0.80 1.10 GB/T 24131.1-2018 hot roll method Ash (mass fraction) /% ≤ 0.20 GB/T 4498.1-2013 Method A Raw rubber Mooney viscosity [ML (1 4) 100 ° C] 45 ± 4 45 ± 5 45 ± 7 GB/T 1232.1-2016, samples if needed Over the roll, the roll temperature should be 35 ° C ± 5 ° C ......

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