Conventional Hardness Testing
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Conventional hardness testing
Terminology
In polymer testing, a conventional hardness test method (see: hardness) refers to all methods in which characteristic values are determined using device systems that do not have any instrumentation, i.e., it is not technically possible to electronically record the force and deformation behaviour (penetration depth, deflection, elongation) during the loading of a test specimen. For this reason, these hardness testing methods usually only output one characteristic value, which may be corrected by the yield value (see: tensile test compliance) of the test system.
Conventional hardness testing methods
The following conventional hardness testing methods for polymer testing are described in more detail in this online lexicon:
- Barcol hardness
- BUCHHOLZ hardness
- IRHD hardness
- KNOOP hardness
- Ball indentation hardness
- ROCKWELL hardness
- SHORE hardness
- Vickers hardness
If the test load and penetration depth are recorded continuously and simultaneously during the test, this is referred to as instrumented hardness testing or recording hardness testing.
See also
References
- Grellmann, W., Seidler, S. (Eds.): Polymer Testing. Carl Hanser, Munich (2022) 3rd Edition, pp. 180–187 (ISBN 978-3-446-44718-9; E-Book: ISBN 978-3-446-48105-3