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ISO 9184-4:1990

Paper, board and pulps — Fibre furnish analysis — Part 4: Graff "C" staining test

Dec 6, 1990

General information

90.20     Apr 15, 2026

ISO

ISO/TC 6

International Standard

85.040     85.060  

French   English  

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Scope

This part specifies the preparation, use and colour reactions of Graff "C" stain. It should be used in conjunction with ISO 9184-1 and, if necessary, with other staining tests defined in ISO 9184-2. Graff "C" stain allows the identification of almost all the common papermaking fibres. However, this calls for a great deal of training and experience. Thus, main applications are: differentiation of chemical, semi-chemical and mechanical pulps, differentiation of kraft and sulfite in hardwood pulps, differentiation of softwood and hardwood pulps (except dissolving grade pulps), differentiation of bleached straw and esparto pulps in softwood pulps.

Life cycle

NOW

PUBLISHED
ISO 9184-4:1990
90.20 Standard under periodical review
Apr 15, 2026

National adoptions

SRPS ISO 9184-4:1994  
ISS

Paper, board and pulps — Fibre furnish analysis — Part 4: Graff "C" staining test

90.20   Standard under periodical review

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