M00000240
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ISO 3167 5th Edition, August 1, 2014 Plastics - Multipurpose test specimens
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Availability date: 07/13/2021
Description / Abstract:
This International Standard specifies requirements relating to
multipurpose test specimens for plastic moulding materials intended
for processing by injection or direct compression moulding.
Specimens of types A and B are tensile test specimens from
which, with simple machining, specimens for a variety of other
tests can be taken (see Annex A). Because they have such
wide utility, these tensile specimens are referred to in this
International Standard as multipurpose test specimens.
The principal advantage of a multipurpose test specimen is that
it allows all the test methods mentioned in Annex A to be
carried out on the basis of comparable mouldings. Consequently, the
properties measured are coherent as all are measured with specimens
in the same state. In other words, it can be expected that test
results for a given set of specimens will not vary appreciably due
to unintentionally different moulding conditions. On the other
hand, if desired, the influence of moulding conditions and/or
different states of the specimens can be assessed without
difficulty for all of the properties measured.
For quality-control purposes, the multipurpose test specimen may
serve as a convenient source of further specimens not readily
available. Furthermore, the fact that only one mould is required
may be advantageous.
The use of multipurpose test specimens shall be agreed upon by
the interested parties, because there may be significant
differences between properties of the multipurpose test specimens
and those specified in the relevant test methods.