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See Chinese contents: GB 10810.3-2006 GB 10810.3-2006: Spectacle lenses and related eye wear -- Part 3: Transmittance specifications and test methods
This Part of GB 10810 specifies transmittance characteristics of spectacle lenses and related eye wear of any material. This Part applies to the relevant eye wear, including: mounted spectacle lenses, complete sunglasses, sunglasses lenses, driving glasses, polarizing lenses, tinted lenses, photochromic lenses, etc.
