ISO 20753:2008
Plastics - Test specimens

Standard No.
ISO 20753:2008
Release Date
2008
Published By
International Organization for Standardization (ISO)
Status
Replace By
ISO 20753:2018
Latest
ISO 20753:2023
Scope
1.1 This International Standard specifies dimensional requirements relating to test specimens prepared from plastics materials intended for processing by moulding, as well as to test specimens prepared by machining from sheets or shaped articles. It gives, in one document, the designations and dimensions of test specimens used for the acquisition of comparable data and also other frequently used specimens. The following types of test specimen are specified: a) Type A1 and type A2 specimens (1 = injection moulded, 2 = machined from a sheet or shaped article) These are tensile test specimens from which, with simple machining, specimens for a variety of other tests can be taken (see Annex A). The type A1 specimen corresponds to the ISO 3167:2002 type A multipurpose test specimen. The principal advantage of a multipurpose test specimen is that it allows all the test methods mentioned in Annex A to be carried out by all test laboratories on the basis of comparable mouldings. Consequently, the properties measured are coherent as all are measured using similar specimens prepared in the same way. 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. Also described are reduced-scale test specimens designated type Axy, where x is the number indicating the method of specimen preparation (1 -- injection moulded, 2 = machined from a sheet or shaped article) and y is a number indicating the scale factor (l:y). These can be used e.g. when full-sized test specimens are not convenient or when sample material exists in small quantities only. b) Type B specimens These are bar specimens which can be directly moulded or can be machined from the central section of type A1 specimens or from sheets or shaped articles. c) Type C specimens These are small tensile test specimens which can be directly moulded or machined, e.g. from plates (Type D specimens), from the central section of type A1 specimens or from sheets or shaped articles. d) Type D1 and type D2 specimens These are square plates of thickness 1 mm and 2 mm, respectively. If a particular type of test specimen is not mentioned in this International Standard, this does not mean that there is any intention to exclude the use of the specimen. Additional specimen types may be added in future if they are commonly used.

ISO 20753:2008 Referenced Document

  • ISO 10350-1 Plastics - Acquisition and presentation of comparable single-point data - Part 1: Moulding materials*， 2017-09-01 Update
  • ISO 10350-2 Plastics — Acquisition and presentation of comparable single-point data — Part 2: Long-fibre-reinforced plastics*， 2020-07-22 Update
  • ISO 10724-1 Plastics - Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) - Part 1: General principles and moulding of multipurpose test specimens
  • ISO 11403-1 Plastics — Acquisition and presentation of comparable multipoint data — Part 1: Mechanical properties*， 2021-06-18 Update
  • ISO 11403-2 Plastics — Acquisition and presentation of comparable multipoint data — Part 2: Thermal and processing properties*， 2022-07-19 Update
  • ISO 11403-3 Plastics - Acquisition and presentation of comparable multipoint data - Part 3: Environmental influences on properties*， 2021-05-31 Update
  • ISO 2818 Plastics — Preparation of test specimens by machining*， 2018-12-13 Update
  • ISO 293 Plastics — Compression moulding of test specimens of thermoplastic materials*， 2023-02-21 Update
  • ISO 294-1 Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test specimens*， 2017-05-01 Update
  • ISO 295 Plastics - Compression moulding of test specimens of thermosetting materials

ISO 20753:2008 history

Plastics - Test specimens


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