ISO 8256:2004
Plastics - Determination of tensile-impact strength

Standard No.
ISO 8256:2004
Release Date
2004
Published By
International Organization for Standardization (ISO)
Status
 2023-11
Replace By
ISO 8256:2023
Latest
ISO 8256:2023
Scope
1 This International Standard specifies two methods (method A and method B) for the determination of the tensile-impact strength of plastics under defined conditions. The tests can be described as tensile tests at relatively high strain rates. These methods can be used for rigid materials (as defined in ISO 472), but are especially useful for materials too flexible or too thin to be tested with impact tests conforming to ISO 179 or ISO 180. 2 These methods are used for investigating the behaviour of specified specimens under specified impact velocities, and for estimating the brittleness or the toughness of specimens within the limitations inherent in the test conditions. 3 These methods are applicable both to specimens prepared from moulding materials and to specimens taken from finished or semi-finished products (for example mouldings, laminates, or extruded or cast sheets). 4 Results obtained by testing moulded specimens of different dimensions may not necessarily be the same. Equally, specimens cut from moulded products may not give the same results as specimens of the same dimensions moulded directly from the material. Test results obtained from specimens prepared from moulding compounds cannot be applied directly to mouldings of any given shape, because values may depend on the design of the moulding and the moulding conditions. Results obtained by method A and method B may or may not be comparable. 5 These methods are not suitable for use as a source of data for design calculations on components. Information on the typical behaviour of a material can be obtained, however, by testing different types of test specimen prepared under different conditions, and by testing at different temperatures. The two different methods are suitable for production control as well as for quality control.

ISO 8256:2004 Referenced Document

  • ISO 10350-1 Plastics - Acquisition and presentation of comparable single-point data - Part 1: Moulding materials*， 2017-09-01 Update
  • ISO 11403-3 Plastics - Acquisition and presentation of comparable multipoint data - Part 3: Environmental influences on properties*， 2021-05-31 Update
  • ISO 13802 Plastics — Verification of pendulum impact-testing machines — Charpy, Izod and tensile impact-testing*， 2016-04-01 Update
  • ISO 179-1 Plastics. Determination of Charpy impact properties - Non-instrumented impact test*， 2023-06-07 Update
  • ISO 179-2 Plastics — Determination of Charpy impact properties — Part 2: Instrumented impact test — Amendment 1: Precision data*， 2020-05-14 Update
  • ISO 180 Plastics. Determination of Izod impact strength*， 2023-06-07 Update
  • ISO 2602 Statistical interpretation of test results; estimation of the mean; confidence interval
  • ISO 2818 Plastics — Preparation of test specimens by machining*， 2018-12-13 Update
  • ISO 291 Plastics - Standard atmospheres for conditioning and testing*， 2008-05-01 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 294-2 Plastics — Injection moulding of test specimens of thermoplastic materials — Part 2: Small tensile bars*， 2018-12-07 Update
  • ISO 294-3 Plastics — Injection moulding of test specimens of thermoplastic materials — Part 3: Small plates*， 2020-06-26 Update
  • ISO 295 Plastics - Compression moulding of test specimens of thermosetting materials
  • ISO 3167 Plastics - Multipurpose test specimens*， 2014-08-01 Update
  • ISO 472 Plastics — Vocabulary — Amendment 1: Additional items*， 2018-10-31 Update

ISO 8256:2004 history

Plastics - Determination of tensile-impact strength


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