This European Standard specifies the scale numbers and transmittance requirements for filters intended to protectoperators performing work involving welding, braze-welding, air-arc gouging and plasma jet cutting. It also includesrequirements for welding filters with dual scale numbers.The other applicable requirements forThese types of filters are given in EN 166.
EN 169:2002 history
2002EN 169:2002 Personal eye-protection - Filters for welding and related techniques - Transmittance requirements and recommended use
1992EN 169:1992 Personal eye-protection; filters for welding and related techniques; transmittance requirements and recommended utilisation
1986EN 169:1986 Personal Eye-Protection: Filters for Welding and Related Techniques; Transmittance Requirements and Recommended Use