BS 4497:1969

This standard BS 4497:1969 Recommendations for the detection and estimation of nitrogenous treating agents in paper is classified in these ICS categories:

• 85.060 Paper and board

These recommendations describe the problems of the detection and estimation of nitrogenous treating agents in paper, and describe both qualitative and quantitative methods for use with certain of these agents; the methods are confined to those substances that have a strong affinity for acid dyes.

Describes the problems involved and gives qualitative and quantitative methods for use with certain agents used in paper treatment; applies only to substances that have a strong affinity for acid dyes.