Recommendations for the detection and estimation of nitrogenous treating agents in paper.
NORMA vydaná dňa 28.10.1969
Označenie normy: BS 4497:1969
Dátum vydania normy: 28.10.1969
Počet strán: 18
Približná hmotnosť: 54 g (0.12 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS
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. Status: Confirmed