Acoustics. Railway applications. Measurement of noise emitted byrailbound vehicles Ingestion-build-224916 BS EN IEC 60947-9-1 covers

BS EN IEC 60947-9-1 covers low-voltage arc quenching devices hereinafter referred to as AQDs

Choice of radiation source

This includes testing of the applicability and correct implementation of the QA/QC procedures specified for the SRM or AM

BS EN 3745-705 on contrast measurement for fibres and cables applies to:

Acoustics. Railway applications. Measurement of noise emitted byrailbound vehicles Ingestion-build-224916 BS EN IEC 60947-9-1 covers1 Scope This International Standard specifies measurement methods and conditions to obtain reproducible and comparable exterior noise emission levels and spectra for all kinds of vehicles operating on rails or other types of fixed track, hereinafter conventionally called unit. This International Standard is applicable to type testing of units. It does not include all the instructions to characterize the noise emission of the other infrastructure