This European Standard specifies the scale numbers and transmittance requirements for filters for protection against ultraviolet radiation.The other applicable requirements forThese types of filters are given in EN 166:1995. Guidance onThe selection and use of these filters are given in Annex A.
EN 170:2002 history
2002EN 170:2002 Personal eye-protection - Ultraviolet filters - Transmittance requirements and recommended use
1992EN 170:1992 Personal eye-protection; ultraviolet filters; transmittance requirements and recommended use