ISO 12312-2:2015

ISO 12312-2:2015 applies to all afocal (plano power) products intended for direct observation of the sun, such as solar eclipse viewing.
ISO 12312-2:2015 does not apply to the following:
a) afocal (plano power) sunglasses and clip-ons for general use intended for protection against solar radiation;
b) eyewear for protection against radiation from artificial light sources, such as those used in solaria;
c) eye protectors specifically intended for sports (e.g. ski goggles or other types);
d) sunglasses that have been medically prescribed for attenuating solar radiation;
e) prescription sunglass lenses.