National foreword
Cooperating organizations
Method
0 Introduction
1 Scope and field of application
2 References
3 Principle
4 Definitions
5 Pretreatment of test samples
6 Alternative A - Determination of limiting viscosity
number at low concentration of cellulose
7 Alternative B - Determination of limiting viscosity
number at reproducible shear rate
8 Test report
Annexes
A Preparation and analysis of the cupri-ethylene-
diamine solution
B [eta].c at different values of viscosity ratio
eta/eta 0
C Samples of very high or very low viscosity
D Pretreatment of bast fibres
Tables
1 Concentration c to be used, as a function of the
limiting viscosity number [eta] which will be
measured
2 Concentration c to be used as a function of the
limiting viscosity number [eta] which will be
measured
Figures
1 Viscometer suitable for determination of the limiting
viscosity number in accordance with alternative A
2 Viscometer suitable for determination of the limiting
viscosity number in accordance with alternative B