This International Standard specifies methods for the determination of puncture-impact properties of rigid plastics in<\/p>\n
the form of flat test specimens, such as discs or square pieces, under defined conditions. Specimens may be<\/p>\n
moulded directly, cut from sheets or taken from finished products. Different types of test specimens and test<\/p>\n
conditions are defined.<\/p>\n
These falling-dart methods are used to investigate the behaviour of plastic sheeting or mouldings under the impact<\/p>\n
of a striker applied perpendicular to the plane of the specimen.<\/p>\n
This part of ISO 6603 can be used if it is sufficient to characterize the impact behaviour of plastics by a threshold<\/p>\n
value of impact-failure energy based on many test specimens. ISO 6603-2 is used if a force-deflection or force-time<\/p>\n
diagram, recorded at nominally constant striker velocity, is necessary for detailed characterization of the impact<\/p>\n
behaviour.<\/p>\n
These test methods are applicable to specimens with a thickness between 1 mm and 4 mm.<\/p>\n
NOTE For thicknesses less than 1 mm, ISO 7765 should preferably be used. Thicknesses greater than 4 mm may be<\/p>\n
tested if the equipment is suitable, but the test falls outside the scope of ISO 6603-1 and ISO 6603-2.<\/p>\n
These methods are suitable for use with the following types of material:<\/p>\n
_ rigid thermoplastic moulding and extrusion materials, including filled, unfilled and reinforced compounds and<\/p>\n
sheets;<\/p>\n
_ rigid thermosetting moulding and extrusion materials, including filled and reinforced compounds, sheets and<\/p>\n
laminates;<\/p>\n
_ fibre-reinforced thermoset and thermoplastic composites incorporating unidirectional or non-unidirectional<\/p>\n
reinforcements such as mats, woven fabrics, woven rovings, chopped strands, combination and hybrid<\/p>\n
reinforcements, rovings, milled fibres and sheets made from pre-impregnated materials (prepregs).<\/p>\n
These methods are also applicable to specimens which are either moulded or machined from finished products,<\/p>\n
laminates and extruded or cast sheet.<\/p>\n
The test results are comparable only if the conditions of preparation of the specimens, their dimensions and<\/p>\n
surfaces as well as the test conditions are the same. In particular, results determined on specimens of different<\/p>\n
thickness cannot be compared with one another (see annex E of ISO 6603-2:\u2014). Comprehensive evaluation of the<\/p>\n
reaction to impact stress requires that determinations be made as a function of impact velocity and temperature for<\/p>\n
different material variables, such as crystallinity and moisture content.<\/p>\n
The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be taken<\/p>\n
from finished products (see above) for test by these methods.<\/p>\n
Test data developed by these methods should not be used for design calculations. However, information on the<\/p>\n
typical behaviour of the material can be obtained by testing at different temperatures and impact velocities (see<\/p>\n
annex D of ISO 6603-2:\u2014), by varying the thickness (see annex E of ISO 6603-2:\u2014) and by testing specimens<\/p>\n
prepared under different conditions.<\/p>\n
Two statistical methods of test are described in this part of ISO 6603:<\/p>\n
_ Method A: staircase method (individual) (preferred)<\/p>\n
In this method, a uniform energy increment is employed during testing. The energy is decreased or increased<\/p>\n
by the uniform increment after testing each specimen, depending upon the observed result (pass or fail) for the<\/p>\n
preceding test.<\/p>\n
_ Method B: group method (optional)<\/p>\n
In this method, successive groups of at least ten test specimens are tested. The impact failure energy is<\/p>\n
calculated by statistics.<\/p>\n","protected":false},"excerpt":{"rendered":"
Plastics \u2014 Determination of puncture impact behaviour of rigid plastics \u2014 Part 1: Non-instrumented impact testing<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n ISO<\/b><\/a><\/td>\n 2000-03<\/td>\n 26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":621639,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1177,2634],"product_tag":[],"class_list":{"0":"post-621628","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-83-080-01","7":"product_cat-iso","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/621628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/621639"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=621628"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=621628"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=621628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}