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China Proposes GB Standard for Sunglasses and Sunglare Filters
Vol. 870 | November 05, 2015
The draft GB standard on general requirements for sunglasses and sunglare filters was recently released for public consultation. It is applicable to all plano power sunglasses, sun glare filters, and clip-ons for general use, including road use and driving, intended for protection against solar radiation. According to this draft standard, it is modified from ISO 12312-1:2013, Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for general use.
Following are the proposed mandatory requirements:
transmittance and filter categories
uniformity of luminous transmittance
requirements for road use and driving
wide angle scattering
additional transmittance requirements for photochromic filters and polarizing filters