NA 058
DIN Standards Committee Lighting Technology
Standards
[Withdrawn]
DIN 20609
DIN 20609
Lighting of mine locomotives; head lamps; design features, photometric requirements, meters and measurements
Title (German)
Beleuchtung an Grubenlokomotiven; Scheinwerfer; Konstruktionsmerkmale, lichttechnische Anforderungen, Meßgeräte und Messungen