1 Scope
This document specifies requirements for the transmittance properties of uncut and
unmounted finished spectacle lenses, including attenuation of solar radiation.
This document is not applicable to
-
— spectacle lenses having specific transmittance or absorption characteristics prescribed
for medical reasons,
-
— products to which specific personal protective equipment transmittance standards apply,
and
-
— products intended for direct observation of the sun, such as for solar-eclipse viewing.
NOTE 1 By reference to ISO 21987 and ISO 14889, this document also applies to lenses mounted in spectacles.
NOTE 2 Optical and geometric requirements are given for uncut finished spectacle lenses in
ISO 8980‑1 and ISO 8980‑2, and for mounted lenses, in ISO 21987.