EN175
Eyes and face protection to the brazing related techniques
The EN 175 norm gives the scale numbers and the specifications of filters transmition destined to assure the protection of the users when they’re doing brazing works, mixed brazing, calibration and plasma cut.
The other demands applicable to this type of filter figures in the EN 166. The specifications to the brazing filters with scale of variable protection or of double scale of protection are the object of EN 379.