BS 7463-5:1991

This standard BS 7463-5:1991 Fibre furnish analysis of paper, board and pulps is classified in these ICS categories:

• 85.060 Paper and board
• 85.040 Pulps

This part of ISO 9184 specifies the preparation, use and colour reactions of Lofton-Merritt stain in fibre furnish analysis. It should be used in conjunction with ISO 9184-1 and, if necessary, with other staining tests defined in ISO 9184-2.

The Lofton-Merritt staining test is applicable to the qualitative and quantitative differentiation of the following pulps:

• unbleached and bleached softwood chemical pulps;
• unbleached kraft and sulfite in softwood pulps;
• unbleached semi-chemical kraft and sulfite pulps.