| ISO: 75 | Part: 1 | Published: 1999 | Contact: BSI |
| Title | Plastics - Determination of deflection temperature under load - General test method |
| Scope | This international standard specifies a test method under constant three-point loading in flatwise position, using a defined increase of flexural strain under different constant loads. |
| Comment | The principle of the method specified is subjecting a standard test specimen to a bending stress under three-point loading to produce one of the nominal surface stresses in the relevant part of this standard, raising the temperature at a uniform rate, measuring the temperature, at which a specified deflection occurs. The results obtained do not necessarily represent maximum use temperatures. |
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