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Plastics-Determination of tensile properties-Part 4

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Core Tip:1 Scope1.1 This part of ISO 527 specifies the test conditions for the determination of the tensile properties of isotrop
1 Scope
1.1 This part of ISO 527 specifies the test conditions for the determination of the tensile properties of isotropic and orthotropic fibre-reinforced plastic composites, based upon the general principles given in part 1. Unidirectionally reinforced materials are covered by part 5.
1.2 See ISO 527-1, subclause 1.2.
1.3 The test method is suitable for use with the following materials:
— fibre-reinforced thermosetting and thermoplastic composites incorporating  non-unidirectional reinforcements such as mats, woven fabrics, woven rovings, chopped strands, combinations of such reinforcements, hybrids, rovings, short or milled fibres or preimpregnated materials (prepregs) (for directly injection-moulded specimens, see specimen 1A in ISO 527-2:1993);
— combinations of the above with unidirectional reinforcements and multidirectional reinforced materials constructed from unidirectional layers, provided such laminates are symmetrical (for  materials with completely, or mainly, unidirectional reinforcements, see ISO 527-5);
— finished products made from these materials.
The reinforcement fibres covered include glass fibres, carbon fibres, aramid fibres and other similar fibres.
1.4 The method is performed using specimens machined from a test panel made in accordance with ISO 1268 or by equivalent methods, or from finished and semi-finished products with suitable flat areas.
1.5 See ISO 527-1, subclause 1.5.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 527. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 527 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.
ISO 527-1:1993, Plastics — Determination of tensile properties — Part 1: General principles.
ISO 527-2:1993, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and extrusion plastics.
ISO 527-5:1997, Plastics — Determination of tensile properties — Part 5: Test conditions for
unidirectional fibre-reinforced plastic composites.
ISO 1268:1974, Plastics — Preparation of glass fibre reinforced, resin bonded, low-pressure laminated plates or panels for test purposes.
ISO 2818:1994, Plastics — Preparation of test specimens by machining.
ISO 3534-1:1993, Statistics — Vocabulary and symbols — Part 1: Probability and general
statistical terms.
 
 
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