CSA Group Plastics - Determination of stiffness in torsion of flexible materials - Part 1: General method ISO 458-1:1985

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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.
  • Plastics - Determination of stiffness in torsion of flexible materials - Part 1: General method - ISO 458-1:1985 - CSA Group
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Description
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.

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Plastics - Determination of stiffness in torsion of flexible materials - Part 1: General method - ISO 458-1:1985 - CSA Group
CSA Group
Toronto, Ontario, Canada
Plastics - Determination of stiffness in torsion of flexible materials - Part 1: General method
ISO 458-1:1985
Plastics - Determination of stiffness in torsion of flexible materials - Part 1: General method ISO 458-1:1985
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.

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.

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Technical Specifications

  CSA Group
Product Category Standards and Technical Documents
Product Number ISO 458-1:1985
Product Name Plastics - Determination of stiffness in torsion of flexible materials - Part 1: General method
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