NBN ISO 2453:2021

Rubber, raw styrene-butadiene, emulsion-polymerized — Determination of bound styrene content — Refractive index method (ISO 2453:2020)

ACTIVE

About this standard

Languages
English and French
Type
NBN
Standards committee
CENTEXBEL/I045 (Rubber and rubber products)
Status
ACTIVE
Publication date
29 May 2021
ICS Code
83.040.10 (Latex and raw rubber)
Withdrawn Date
Price
€ 58,00

Summary

This document specifies a method for determining the bound styrene content of emulsion-polymerized
styrene-butadiene rubbers (SBR) by correlation with the measured refractive index of an extracted
sample according to a table of refractive indices versus percentage mass fractions styrene.
The method is also applicable to extracted oil-extended emulsion-polymerized SBR as long as it produces
a film suitable for refractive index measurements. It is not applicable to solution-polymerized SBR.