Reference number
ISO 9184-5:1990
ISO 9184-5:1990
© ISO 2025
International Standard
ISO 9184-5:1990
Paper, board and pulps — Fibre furnish analysis — Part 5: Lofton-Merritt staining test (modification of Wisbar)
Edition 1
1990-12
1990-12
ISO 9184-5:1990
16806
Published
(Edition 1, 1990)
This publication was last reviewed and confirmed in 2021.
Therefore this version remains current.
Abstract
This part specifies the preparation, use and colour reactions of Lofton-Merritt stain. 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 unbleached and bleached softwood chemical pulps, unbleached kraft and sulfite in softwood pulps, unbleached semi-chemical kraft and sulfite pulps.