BS 2782-7 Method 733A:1991
Superseded
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Methods of testing plastics. Rheological properties Determination of viscosity number of polyamides
Hardcopy , PDF
15-07-1996
English
29-11-1991
National foreword
Committees responsible
Method
1 Scope and field of application
2 References
3 Definition
4 Principle
5 Reagents
6 Apparatus
7 Preparation of test sample
8 Calculation of mass of test portion
9 Selection of solvent
10 Procedure
11 Expression of results
12 Repeatability and reproducibility
13 Interconversion of the viscosity numbers determined
in different solvents
14 Test report
Figures
1 Ubbelohde viscometer
2 Calibration lines for the interconversion of the
viscosity numbers of PA 6, 66, 69, and 610 in 90 %
(m/m) formic acid solution and in 96 % (m/m)
sulfuric acid solution
3 Calibration lines for the interconversion of the
viscosity numbers of PA 612 and 6(3)T in 96 % (m/m)
sulfuric acid solution and in m-cresol
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