TZS 1548-2: 2012 Ophthalmic optics – Semi-finished spectacle lens blanks –Part 2: Specifications for progressive power lens blanks

This measure specifies requirements for the optical and geometrical properties of semi-finished
progressive power spectacle lens blanks.

Source of publication

Tanzania Bureau of Standards (TBS) 

Language

English 

Date of publication

06 July 2012 

Direct link to publication

http://www.tbs.go.tz/standards/index.php/tbs/tzs_1548_part_2_2012