01/121538 DC : DRAFT APRIL 2001

1 Scope
2 Normative references
3 Terms and definitions
4 Apparatus
5 Test specimens
6 Procedure
  6.1 Conditioning and test atmosphere
  6.2 Measurement of test-specimen dimensions
  6.3 Mounting the test specimens
  6.4 Selection of stress value
  6.5 Loading procedure
      6.5.1 Preloading
      6.5.2 Loading
  6.6 Extension-measurement schedule
  6.7 Time measurement
  6.8 Temperature and humidity control
  6.9 Measurement of recovery rate (optional)
7 Expression of results
  7.1 Method of calculation
  7.2 Presentation of results
      7.2.1 Creep curves
      7.2.2 Creep-modulus/time curves
      7.2.3 Isochronous stress-strain curves
      7.2.4 Three-dimensional representation
      7.2.5 Creep-to-rupture curves
  7.3 Precision
8 Test report
Annex A (informative) Physical ageing effects on the creep
                      of polymers
      A.1 General
      A.2 Creep at elevated temperatures
Bibliography

BS EN ISO 899-1.