<p>This International Standard specifies methods for the determination of puncture-impact properties of rigid plastics in</p>
<p>the form of flat test specimens, such as discs or square pieces, under defined conditions. Specimens may be</p>
<p>moulded directly, cut from sheets or taken from finished products. Different types of test specimens and test</p>
<p>conditions are defined.</p>
<p>These falling-dart methods are used to investigate the behaviour of plastic sheeting or mouldings under the impact</p>
<p>of a striker applied perpendicular to the plane of the specimen.</p>
<p>This part of ISO 6603 can be used if it is sufficient to characterize the impact behaviour of plastics by a threshold</p>
<p>value of impact-failure energy based on many test specimens. ISO 6603-2 is used if a force-deflection or force-time</p>
<p>diagram, recorded at nominally constant striker velocity, is necessary for detailed characterization of the impact</p>
<p>behaviour.</p>
<p>These test methods are applicable to specimens with a thickness between 1 mm and 4 mm.</p>
<p>NOTE For thicknesses less than 1 mm, ISO 7765 should preferably be used. Thicknesses greater than 4 mm may be</p>
<p>tested if the equipment is suitable, but the test falls outside the scope of ISO 6603-1 and ISO 6603-2.</p>
<p>These methods are suitable for use with the following types of material:</p>
<p>_ rigid thermoplastic moulding and extrusion materials, including filled, unfilled and reinforced compounds and</p>
<p>sheets;</p>
<p>_ rigid thermosetting moulding and extrusion materials, including filled and reinforced compounds, sheets and</p>
<p>laminates;</p>
<p>_ fibre-reinforced thermoset and thermoplastic composites incorporating unidirectional or non-unidirectional</p>
<p>reinforcements such as mats, woven fabrics, woven rovings, chopped strands, combination and hybrid</p>
<p>reinforcements, rovings, milled fibres and sheets made from pre-impregnated materials (prepregs).</p>
<p>These methods are also applicable to specimens which are either moulded or machined from finished products,</p>
<p>laminates and extruded or cast sheet.</p>
<p>The test results are comparable only if the conditions of preparation of the specimens, their dimensions and</p>
<p>surfaces as well as the test conditions are the same. In particular, results determined on specimens of different</p>
<p>thickness cannot be compared with one another (see annex E of ISO 6603-2:—). Comprehensive evaluation of the</p>
<p>reaction to impact stress requires that determinations be made as a function of impact velocity and temperature for</p>
<p>different material variables, such as crystallinity and moisture content.</p>
<p>The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be taken</p>
<p>from finished products (see above) for test by these methods.</p>
<p>Test data developed by these methods should not be used for design calculations. However, information on the</p>
<p>typical behaviour of the material can be obtained by testing at different temperatures and impact velocities (see</p>
<p>annex D of ISO 6603-2:—), by varying the thickness (see annex E of ISO 6603-2:—) and by testing specimens</p>
<p>prepared under different conditions.</p>
<p>Two statistical methods of test are described in this part of ISO 6603:</p>
<p>_ Method A: staircase method (individual) (preferred)</p>
<p>In this method, a uniform energy increment is employed during testing. The energy is decreased or increased</p>
<p>by the uniform increment after testing each specimen, depending upon the observed result (pass or fail) for the</p>
<p>preceding test.</p>
<p>_ Method B: group method (optional)</p>
<p>In this method, successive groups of at least ten test specimens are tested. The impact failure energy is</p>
<p>calculated by statistics.</p>
Registration number (WIID)
26800
Scope
<p>This International Standard specifies methods for the determination of puncture-impact properties of rigid plastics in</p>
<p>the form of flat test specimens, such as discs or square pieces, under defined conditions. Specimens may be</p>
<p>moulded directly, cut from sheets or taken from finished products. Different types of test specimens and test</p>
<p>conditions are defined.</p>
<p>These falling-dart methods are used to investigate the behaviour of plastic sheeting or mouldings under the impact</p>
<p>of a striker applied perpendicular to the plane of the specimen.</p>
<p>This part of ISO 6603 can be used if it is sufficient to characterize the impact behaviour of plastics by a threshold</p>
<p>value of impact-failure energy based on many test specimens. ISO 6603-2 is used if a force-deflection or force-time</p>
<p>diagram, recorded at nominally constant striker velocity, is necessary for detailed characterization of the impact</p>
<p>behaviour.</p>
<p>These test methods are applicable to specimens with a thickness between 1 mm and 4 mm.</p>
<p>NOTE For thicknesses less than 1 mm, ISO 7765 should preferably be used. Thicknesses greater than 4 mm may be</p>
<p>tested if the equipment is suitable, but the test falls outside the scope of ISO 6603-1 and ISO 6603-2.</p>
<p>These methods are suitable for use with the following types of material:</p>
<p>_ rigid thermoplastic moulding and extrusion materials, including filled, unfilled and reinforced compounds and</p>
<p>sheets;</p>
<p>_ rigid thermosetting moulding and extrusion materials, including filled and reinforced compounds, sheets and</p>
<p>laminates;</p>
<p>_ fibre-reinforced thermoset and thermoplastic composites incorporating unidirectional or non-unidirectional</p>
<p>reinforcements such as mats, woven fabrics, woven rovings, chopped strands, combination and hybrid</p>
<p>reinforcements, rovings, milled fibres and sheets made from pre-impregnated materials (prepregs).</p>
<p>These methods are also applicable to specimens which are either moulded or machined from finished products,</p>
<p>laminates and extruded or cast sheet.</p>
<p>The test results are comparable only if the conditions of preparation of the specimens, their dimensions and</p>
<p>surfaces as well as the test conditions are the same. In particular, results determined on specimens of different</p>
<p>thickness cannot be compared with one another (see annex E of ISO 6603-2:—). Comprehensive evaluation of the</p>
<p>reaction to impact stress requires that determinations be made as a function of impact velocity and temperature for</p>
<p>different material variables, such as crystallinity and moisture content.</p>
<p>The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be taken</p>
<p>from finished products (see above) for test by these methods.</p>
<p>Test data developed by these methods should not be used for design calculations. However, information on the</p>
<p>typical behaviour of the material can be obtained by testing at different temperatures and impact velocities (see</p>
<p>annex D of ISO 6603-2:—), by varying the thickness (see annex E of ISO 6603-2:—) and by testing specimens</p>
<p>prepared under different conditions.</p>
<p>Two statistical methods of test are described in this part of ISO 6603:</p>
<p>_ Method A: staircase method (individual) (preferred)</p>
<p>In this method, a uniform energy increment is employed during testing. The energy is decreased or increased</p>
<p>by the uniform increment after testing each specimen, depending upon the observed result (pass or fail) for the</p>
<p>preceding test.</p>
<p>_ Method B: group method (optional)</p>
<p>In this method, successive groups of at least ten test specimens are tested. The impact failure energy is</p>
<p>calculated by statistics.</p>
