Active standard | Published: 15/11/1990

ISO 6225-2:1990-ed.2.0

Rubber, raw, natural — Determination of castor oil content — Part 2: Determination of total ricinoleic acid content by gas chromatography
(Caoutchouc naturel brut — Détermination de la teneur en huile de ricin — Partie 2: Détermination de la teneur en acide ricinoléique total par chromatographie en phase gazeuse)

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Detail information

Designation: ISO 6225-2:1990-ed.2.0

Publication date: 15/11/1990

Pages: 3

Country: International technical standard

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Anotation

Description / 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.

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