Railway applications. External visible and audible warning devices - Head, marker and tail lamps for heavy rail1 Scope This document defines the functional and technical requirements for head, marker and tail lamps for heavy rail units, excluding road, metro and self contained systems. This document also defines the requirements for testing and conformity assessment. Lamps designed for special purposes, for example illumination of third rail, are excluded from the scope of this document. Portable lamps are excluded from the scope of this document.

from UV-radiation

K+ (potassium)

Contents of BS EN 1501-3:

tracking and verification issues

tensile properties of a needle-punched carpet

and finish

Who is BS EN 61243-2-Requirements and test methods for resistive type voltage detectors for

BS IEC 62766-5-1 helps you to provide a high-quality entertainment experience to your customers

by evaluating its soft error sensitivity

even in high-salt and low-thickness environments

with its larger diameter uppermost

BS EN 61772 on the application of VDUs for nuclear power plants is useful for: