Road restraint systems - Performance classes, impact test acceptance criteria and test methods for safety barriers including vehicle parapets Ingestion-build-48024 threading/grooving

threading/grooving

BS EN ISO 3740: 2019 includes some technical changes with respect to ISO 3740:2000

BS EN 15843 is a European Standard which provides guidance on characterizing modifications to hydromorpholical features

Steel washers in BS EN 2139 are intended for use primarily underneath nuts

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Road restraint systems - Performance classes, impact test acceptance criteria and test methods for safety barriers including vehicle parapets Ingestion-build-48024 threading/grooving1 Scope This European Standard specifies requirements on impact performance of safety barriers, including vehicle parapets, classes of containment, working width, vehicle intrusion and impact severity levels. NOTE This European Standard should be read in conjunction with EN 13171. Both these standards support EN 13175. The modifications included in standard are not a change of test criteria, in the sense of the EN 13175: 2007+A1: 2008, ZA. 3.