Tests the wicking height of paper and board according to the Kremm method. The instrument is suitable for the determination of the capillary liquid absorption height of unglued paper and cardboard; it is not suitable for the paper and cardboard whose capillary liquid absorption height is less than 5mm within 10 minutes.
For a vertically suspended sample, its lower end 5mm is immersed in the reagent, and the capillary suction height after a certain period of time is measured. The liquid absorption time is selected according to the characteristics of the product, such as 10min±10s, etc.
QB/T1662 "Kreem Absorbency Tester", GB/T461.1 "Determination of Capillary Absorption Height of Paper and Cardboard (Kreem Method)"