Homepage>BS EN ISO 8980-3:2022 - TC Tracked Changes. Ophthalmic optics. Uncut finished spectacle lenses Transmittance specifications and test methods
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sklademVydáno: 2022-08-01
BS EN ISO 8980-3:2022 - TC
Tracked Changes. Ophthalmic optics. Uncut finished spectacle lenses Transmittance specifications and test methods
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Označení normy:
BS EN ISO 8980-3:2022 - TC
Počet stran:
112
Vydáno:
2022-08-01
ISBN:
978 0 539 23288 2
Status:
Tracked Changes
DESCRIPTION
BS EN ISO 8980-3:2022 - TC
This standard BS EN ISO 8980-3:2022 - TC Tracked Changes. Ophthalmic optics. Uncut finished spectacle lenses is classified in these ICS categories:
11.040.70 Ophthalmic equipment
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.
