Published
ISO 699:2015 specifies a method for the determination of the alkali-insoluble fraction of pulps using sodium hydroxide solution of fixed concentration. The sodium hydroxide concentrations most frequently used are 18, 10, and 5 % (m/m).
The method is applicable to all kinds of pulp.
WITHDRAWN
ISO 699:1982
PUBLISHED
ISO 699:2015
90.93
Standard confirmed
Feb 4, 2021