<p>This International Standard specifies a method for determining the compressive properties of plastics under defined</p>
<p>conditions. A standard test specimen is defined but its length may be adjusted to prevent buckling under load from</p>
<p>affecting the results. A range of test speeds is included.</p>
<p>The method is used to investigate the compressive behaviour of the test specimens and for determining the</p>
<p>compressive strength, compressive modulus and other aspects of the compressive stress/strain relationship under</p>
<p>the conditions defined.</p>
<p>The method applies to the following range of materials:</p>
<p> rigid and semi-rigid [1] thermoplastic moulding and extrusion materials, including compounds filled and</p>
<p>reinforced by e.g. short fibres, small rods, plates or granules in addition to unfilled types; rigid and semi-rigid</p>
<p>thermoplastic sheet;</p>
<p> rigid and semi-rigid thermoset moulding materials, including filled and reinforced compounds; rigid and semirigid</p>
<p>thermoset sheet;</p>
<p> thermotropic liquid-crystal polymers.</p>
<p>In agreement with ISO 10350-1 and ISO 10350-2, this International Standard applies to fibre-reinforced</p>
<p>compounds with fibre lengths u 7,5 mm prior to processing.</p>
<p>The method is not normally suitable for use with materials reinforced by textile fibres (see references [2] and [5]),</p>
<p>fibre-reinforced plastic composites and laminates (see [5]), rigid cellular materials (see [3]) or sandwich structures</p>
<p>containing cellular material or rubber (see [4]).</p>
<p>The method is performed using specimens which may be moulded to the chosen dimensions, machined from the</p>
<p>central portion of a standard multipurpose test specimen (see ISO 3167) or machined from finished or semifinished</p>
<p>products such as mouldings or extruded or cast sheet.</p>
<p>The method specifies preferred dimensions for the test specimen. Tests which are carried out on specimens of</p>
<p>different dimensions, or on specimens which are prepared under different conditions, may produce results which</p>
<p>are not comparable. Other factors, such as the test speed and the conditioning of the specimens, can also</p>
<p>influence the results. Consequently, when comparable data are required, these factors must be carefully controlled</p>
<p>and recorded.</p>
Registration number (WIID)
31261
Scope
<p>This International Standard specifies a method for determining the compressive properties of plastics under defined</p>
<p>conditions. A standard test specimen is defined but its length may be adjusted to prevent buckling under load from</p>
<p>affecting the results. A range of test speeds is included.</p>
<p>The method is used to investigate the compressive behaviour of the test specimens and for determining the</p>
<p>compressive strength, compressive modulus and other aspects of the compressive stress/strain relationship under</p>
<p>the conditions defined.</p>
<p>The method applies to the following range of materials:</p>
<p> rigid and semi-rigid [1] thermoplastic moulding and extrusion materials, including compounds filled and</p>
<p>reinforced by e.g. short fibres, small rods, plates or granules in addition to unfilled types; rigid and semi-rigid</p>
<p>thermoplastic sheet;</p>
<p> rigid and semi-rigid thermoset moulding materials, including filled and reinforced compounds; rigid and semirigid</p>
<p>thermoset sheet;</p>
<p> thermotropic liquid-crystal polymers.</p>
<p>In agreement with ISO 10350-1 and ISO 10350-2, this International Standard applies to fibre-reinforced</p>
<p>compounds with fibre lengths u 7,5 mm prior to processing.</p>
<p>The method is not normally suitable for use with materials reinforced by textile fibres (see references [2] and [5]),</p>
<p>fibre-reinforced plastic composites and laminates (see [5]), rigid cellular materials (see [3]) or sandwich structures</p>
<p>containing cellular material or rubber (see [4]).</p>
<p>The method is performed using specimens which may be moulded to the chosen dimensions, machined from the</p>
<p>central portion of a standard multipurpose test specimen (see ISO 3167) or machined from finished or semifinished</p>
<p>products such as mouldings or extruded or cast sheet.</p>
<p>The method specifies preferred dimensions for the test specimen. Tests which are carried out on specimens of</p>
<p>different dimensions, or on specimens which are prepared under different conditions, may produce results which</p>
<p>are not comparable. Other factors, such as the test speed and the conditioning of the specimens, can also</p>
<p>influence the results. Consequently, when comparable data are required, these factors must be carefully controlled</p>
<p>and recorded.</p>
