ISO 6225-2:1990

Name: ISO 6225-2:1990
Brand: ISO
SKU: ISO 6225-2:1990
Price: 52.03 EUR
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Rubber, raw, natural — Determination of castor oil content — Part 2: Determination of total ricinoleic acid content by gas chromatography ISO 6225-2:1990

Publication date: Nov 15, 1990

General information

Current stage: 90.20 Standard under periodical review Jan 15, 2025

Originator: ISO

Owner: ISO/TC 45/SC 3 Raw materials (including latex) for use in the rubber industry

Type: International Standard

ICS: 83.040.10 Latex and raw rubber

Buying

Status: Published

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 6225-2:1983

NOW

PUBLISHED
ISO 6225-2:1990
90.20 Standard under periodical review
Jan 15, 2025