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BS EN 60645-1-2017 pdf free download.Electroacoustics - Audiometric equipment Part 1: Equipment for pure-tone and speech audiometry (IEC 60645-1:2017) This part of IEC 60645 specifies general requirements for audiometers designed for use in determining hearing threshold levels,...

BS EN 60079-13-2017 pdf free download.Explosive atmospheres Part 13: Equipment protection by pressurized room "p" and artificially ventilated room "v" (IEC 60079-13:2017) 4.3 Construction The protected room shall , at a minimum , be designed to allow...

BS EN 16585-2 2017 pdf free download.Railway applications — Design for PRM use — Equipment and components on board rolling stock Part 2: Elements for sitting, standing and moving 4) The handholds or other items for personal...

BS EN 16497-2-2017 pdf free download.Chimneys — Concrete System Chimneys Part 2: Balanced flue applications 4 Form The concrete system chimney for balanced flue applications shall comprise of flue blocks, which may be of single wall or...

BS EN 4652-002-2017 pdf free download.Aerospace series - Connectors, coaxial, radiofrequency Part 002: Specification of performances This European Standard specifies the list of product standards and common characteristics of connectors coaxial radio frequency for use in electrical...