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Norm

ÖNORM EN ISO 75-1

Issue date: 2013 07 15

Plastics - Determination of temperature of deflection under load - Part 1: General test method (ISO 75-1:2013)

This part of ISO 75 gives a general test method for the determination of the temperature of deflection under load (flexural stress under three-point loading) of plastics...
Withdrawn: 2020 05 15
Publisher:
Austrian Standards International
Format:
Digital | 14 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This part of ISO 75 gives a general test method for the determination of the temperature of deflection under load (flexural stress under three-point loading) of plastics. Different types of test specimen and different constant loads are defined to suit different types of material. ISO 75-2 gives specific requirements for plastics (including filled plastics and fibre-reinforced plastics in which the fibre length, prior to processing, is up to 7,5 mm) and ebonite, while ISO 75-3 gives specific requirements for high-strength thermosetting laminates and long-fibre-reinforced plastics in which the fibre length is greater than 7,5 mm. The methods specified are suitable for assessing the relative behaviour of different types of material at elevated temperature under load at a specified rate of temperature increase. The results obtained do not necessarily represent maximum applicable temperatures because in practice essential factors, such as time, loading conditions and nominal surface stress, can differ from the test conditions. True comparability of data can only be achieved for materials having the same room-temperature flexural modulus. The methods specify preferred dimensions for the test specimens. Data obtained using the test methods described are not intended to be used to predict actual end-use performance. The data are not intended for design analysis or prediction of the endurance of materials at elevated temperatures. This method is commonly known as the HDT test (heat deflection test or heat distortion test), although there is no official document using this designation.
ÖNORM EN ISO 75-1
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ÖNORM EN ISO 75-1
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ÖNORM EN ISO 75-1
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Norm
ISO 75-2:2013
Issue date : 2013 04 09
Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite
Norm
ISO 75-3:2004
Issue date : 2004 05 12
Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics
Norm
ISO 291:2008
Issue date : 2008 04 22
Plastics — Standard atmospheres for conditioning and testing
Norm
ISO 20753:2008
Issue date : 2008 03 10
Plastics — Test specimens
Norm
ISO 75-2:2013
Issue date : 2013 04 09
Plastics — Determination of temperature of deflection under load — Part 2: Plastics and ebonite
Norm
ISO 75-3:2004
Issue date : 2004 05 12
Plastics — Determination of temperature of deflection under load — Part 3: High-strength thermosetting laminates and long-fibre-reinforced plastics
Norm
ISO 291:2008
Issue date : 2008 04 22
Plastics — Standard atmospheres for conditioning and testing
Norm
ISO 20753:2018
Issue date : 2018 10 19
Plastics — Test specimens
Norm
ÖNORM EN ISO 75-1
Issue date : 2020 05 15
Plastics - Determination of temperature of deflection under load - Part 1: General test method (ISO 75-1:2020)
Norm
ISO 75-1:2013
Issue date : 2013 04 09
Plastics — Determination of temperature of deflection under load — Part 1: General test method