ISO/NP 12492

Rubber, raw — Determination of water content by Karl Fischer method ISO/NP 12492

Scope

This document specifies two test methods for the determination of water content of raw rubber and compounded rubber using a coulometric Karl Fischer titration method.
- Method A is a method using an evaporator of heating tube type oven.
- Method B is a method using an evaporator of vial type oven.
It applies to the water content range between 0,01 % and 1 %.
In case of dispute, method B is the preferred method.