Specification for dimensional properties and associated tolerances of railway rails Ingestion-build-100998 General rules for local post

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Specification for dimensional properties and associated tolerances of railway rails Ingestion-build-100998 General rules for local post1 Scope This British Standard specifies requirements for the dimensional properties and associated tolerances of railway rails of 24. 8 kg m (50 lb yd) and greater linear mass which are not specified in BS EN 136741 or BS EN 136744. For chemical and mechanical properties, grade designation, marking and certification requirements see BS EN 136741.