ISO 6225-2:1990

This standard was last reviewed and confirmed in 2020. Therefore this version remains current.

Abstract

Applicable to all grades of natural rubber. The principle is based on extraction of any free ricinoleic acid and conversion to the acetate of methyl ricinoleate. Extraction of any castor oil glycerides also present, hydrolysis to ricinoleic acid, and conversion to the corresponding acetate of methyl ricinoleate. Determination of the total acetate by gas chromatography by comparison either with a ricinoleic acid standard, or with ricinoleic acid prepared by hydrolysis of a castor oil standard.

General information

Status
: Published

Publication date
: 1990-11
Edition
: 2

Number of pages
: 3
Technical Committee
: ISO/TC 45/SC 3 Raw materials (including latex) for use in the rubber industry
ICS
:
83.040.10 Latex and raw rubber