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

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.

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 document. 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.