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 regulation

Tanzania Bureau of Standards (TBS) 

Publication of regulation

TZS 1548-2: 2012 

Date of implementation

06 July 2012 

Direct link to regulation

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

Regulation file