Physics of radiation in the field of optics and illuminating engineering; definitions and constants of radiation physicsPhysique de radiation optique et technique d'éclairage; définitions et constantes de la physique de radiation
DIN 5031-8:1982 history
1982DIN 5031-8:1982-03 Physics of radiation in the field of optics and illuminating engineering; definitions and constants of radiation physics
1982DIN 5031-1:1982 Optical radiation physics and illuminating engineering; quantities, symbols and units of radiation physics
0000 DIN 5031-8:1977
1970DIN 5496:1971 Thermal radiation of volume radiators