NEN EN 1644-1 : 1997
Current
The latest, up-to-date edition.
01-12-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Definition
4 Test conditions
5 Physical properties
6 Chemical properties
Annexes
A (normative) Test method for conditioning
B (normative) Test method for determination of liquid
absorbency time
C (normative) Test method for determination of liquid
absorptive capacity
D (normative) Test method for determination of water
soluble substances
E (normative) Test method for determination of
fluorescence
F (normative) Test method for determination of acidity
or alkalinity of aqueous extracts
G (normative) Test method for determination of
substances soluble in non-polar solvents
H (normative) Test method for determination of surface-
active substances
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