BS 903-A13:1990:2004 Edition
$86.31
Physical testing of rubber – Method for determination of stiffness at low temperature (Gehman test)
Published By | Publication Date | Number of Pages |
BSI | 2004 | 14 |
Static procedure for determining the relative stiffness characteristics of vulcanized or thermoplastic rubbers over a temperature range of approximately 23°C to -150°C.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | BRITISH STANDARD |
2 | Committees responsible for this British�Standard |
3 | Contents |
5 | 1 Scope 2 Apparatus 2.1 Torsion apparatus 2.2 Torsional wires 2.3 Test piece rack 2.4 Temperature-measuring device 2.5 Heat-transfer medium 2.6 Temperature control 2.7 Tank 2.8 Stirrer 2.9 Stopwatch |
7 | 3 Test piece 3.1 Preparation of test piece 3.2 Conditioning of test piece 4 Procedure 4.1 Calibration of torsion wire 4.2 Mounting of test piece |
8 | 4.3 Stiffness measurements in liquid media 4.4 Stiffness measurement in gaseous media |
9 | 4.5 Crystallization 5 Number of tests 6 Expression of results 6.1 Twist versus temperature curve 6.2 Torsional modulus 6.3 Relative modulus 6.4 Apparent torsional modulus of rigidity |
10 | Twist angles for designated values of the relative modules (RM) |
11 | Values 7 Test report |