This standard specifies the determination method of acidity or alkalinity of paper, cardboard and pulp water extract. This standard applies to the determination of acidity or alkalinity of general paper, paperboard and pulp, not applicable to paper and paperboard containing alkaline fillers or coatings.
GB/T 1545.1-1989 history
2008GB/T 1545-2008 Paper,board and pulp.Determination of acidity or alkalinity
2003GB/T 1545.1-2003 Paper,board and pulp-Determination of acidity or alkalinity
1989GB/T 1545.1-1989 Determination of acidity or alkalinity of aqueous extracts of paper, board and pulp