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ISO 9184-4:1990

Paper, board and pulps — Fibre furnish analysis — Part 4: Graff "C" staining test ISO 9184-4:1990

Publication date:   Dec 6, 1990

General information

90.93 Standard confirmed   Jun 10, 2021

ISO

ISO/TC 6 Paper, board and pulps

International Standard

85.040   Pulps | 85.060   Paper and board

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Published

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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
90.93 Standard confirmed
Jun 10, 2021