BS EN ISO 4254-6:2020 pdf free.Agricultural machinery - Safety Sprayers and liquid fertilizer distributors. BS EN ISO 4254-6 1 Scope This document, to be used together with IS0 4254-1, specifies the safety requirements and their verlfication for the design and construction of mounted, seml-mounted. talled and self-propelled agricultural sprayers for use with plant protection products (PPP) and liquid fertilizer application,...