ISO/NP 11708 - Non metallic material qualification for use in earth moving machinery. Operator protective structures. Rapporto Tecnico IMAMOTER - Dicembre 2007

This Technical Specification describes testing procedures for non metallic materials used in falling-object protective structures (FOPS) intended for use on ride-on earth moving machines as defined in ISO 6165, in order to qualify that they provide adequate resistance in a range of temperature - high to low point - and that the results of tests carried out at ambient temperature can be used also to assess the behaviour at temperature as high as 65°C and as low as -30°C. Specimens may be moulded directly, cut from sheets or taken from finished products. The impact behaviour of finished products cannot be predicted directly from this test, but specimens may be taken from finished products for test by these methods. Test data developed by these methods should not be used for design calculations, but to obtain information on the typical behaviour of the material at different temperatures. Informative Annex B is applicable if a force-deflection or force-time diagram, recorded at nominally constant striker velocity, is necessary for detailed characterization of the impact behaviour.