GB/T 8657-2014
Styrene-butadiene rubber, raw.Determination of soap and organic-acid content (English Version)

Standard No.

GB/T 8657-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 8657-2014

Replace

GB/T 8657-2000

Scope

This standard specifies two methods for the determination of soap and organic acid content in styrene-butadiene raw rubber: method A is the indicator method, and method B is the automatic potentiometric titration method. This standard applies to emulsion-polymerized styrene-butadiene raw rubber. For styrene-butadiene raw rubber using aromatic extender oil and (or) p-phenylenediamine antioxidant, method B should be used.

GB/T 8657-2014 Referenced Document

• GB/T 15340 Rubber,raw natural and raw synthetic.Sampling and further preparative procedures
• GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update

GB/T 8657-2014 history

• 2014 GB/T 8657-2014 Styrene-butadiene rubber, raw.Determination of soap and organic-acid content
• 2000 GB/T 8657-2000 Rubber,raw styrene-butadiene-Determination of soap and organic-acid content