SS-EN-ISO-178 Plastics - Determination of flexural properties (ISO 178:2010)

SS-EN-ISO-178 - 2010 EDITION - CURRENT
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Included in this current edition are the following subparts:

 2010 EDITION - Dec. 27, 2010
 2010/A1:2013 EDITION AMENDMENT - April 19, 2013

1.1 This International Standard specifies a method for determining the flexural properties of rigid (see 3.12) and semi-rigid plastics under defined conditions. A standard test specimen is defined, but parameters are included for alternative specimen sizes for use where appropriate. A range of test speeds is included. 1.2 The method is used to investigate the flexural behaviour of the test specimens and to determine the flexural strength, flexural modulus and other aspects of the flexural stress/strain relationship under the conditions defined. It applies to a freely supported beam, loaded at midspan (three-point loading test). 1.3 The method is suitable for use with the following range of materials: - thermoplastic moulding, extrusion and casting materials, including filled and reinforced compounds in addition to unfilled types; rigid thermoplastics sheets; - thermosetting moulding materials, including filled and reinforced compounds; thermosetting sheets. In agreement with ISO 10350-1[5] and ISO 10350-2[6], this International Standard applies to fibre-reinforced compounds with fibre lengths u 7,5 mm prior to processing. For long-fibre-reinforced materials (laminates) with fibre lengths > 7,5 mm, see ISO 14125[7]. The method is not normally suitable for use with rigid cellular materials or sandwich structures containing cellular material. In such cases, ISO 1209-1[3] and/or ISO 1209-2[4] can be used. NOTE For certain types of textile-fibre-reinforced plastic, a four-point bending test is preferred. This is described in ISO 14125.1.4 The method is performed using specimens which may be either moulded to the specified dimensions, machined from the central section of a standard multipurpose test specimen (see ISO 20753) or machined from finished or semi-finished products, such as mouldings, laminates, or extruded or cast sheet.

To find similar documents by classification:

83.080.01 (Plastics in general)

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Designation Name

SS-EN ISO 178:2010

Revision Level

2010 EDITION

Status

Current

Publication Date

Dec. 27, 2010

Language(s)

English

Page Count

32

International Equivalent

EN ISO 178:2010(IDT); ISO 178:2010(IDT)