Reference number
ISO 458-1:1985
© ISO 2024
International Standard
ISO 458-1:1985
Plastics — Determination of stiffness in torsion of flexible materials — Part 1: General method
Edition 1
1985-03
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Published (Edition 1, 1985)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 458-1:1985

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Format
CHF 42
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Abstract

Specification of a general method for the determination of the stiffness in torsion at various temperatures, particularly below 0 °C. An observation of torque and angle of deflection is made after an arbitrarily fixed time of load application, using the specified testing apparatus. This procedure is employed at a single temperature or at selected temperature intervals over a range specified for the material to be tested. The stiffness in torsion is expressed as the apparent torsional modulus of elasticity for each temperatur.

General information

  • Status
     : Published
    Publication date
     : 1985-03
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 61/SC 2
    ICS :
    83.080.01 
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