NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Technical rule
[CURRENT]
IEC/TR 61341
IEC/TR 61341
Method of measurement of centre beam intensity and beam angle(s) of reflector lamps
Title (German)
Verfahren zur Messung der Axial-Lichtstärke und des (der) Ausstrahlungswinkel(s) von Reflektorlampen