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ISO 9184-3:1990 Paper, board and pulps -- Fibre furnish analysis -- Part 3: Herzberg staining test
standard by International Organization for Standardization, 12/01/1990
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This part specifies the preparation, use and colour reactions of Herzberg stain. It should be used in conjunction with ISO 9184-1 and, if necessary, with other staining tests defined in ISO 9184-2. The Herzberg staining test is applicable to the qualitative and quantitative differentiation between chemical, mechanical and rag pulps. The stain also permits the qualitative identification of semi-chemical pulp as well as the differentiation between regenerated cellulose fibres (viscose, etc.) and synthetic fibres.