• BS 2738-1:1989

BS 2738-1:1989

Spectacle lenses-Specification for tolerances on optical properties of mounted spectacle lenses

BSI Group, 02/28/1989

Publisher: BS

File Format: PDF

$125.00$251.46


Published:28/02/1989

Pages:12

File Size:1 file

Note:This product is unavailable in Ukraine, Russia, Belarus

Permitted tolerances on prescribed lens power, cylinder axes, optical centration and prismatic power of spectacle lenses ready for wear. Marking requirements are specified and recommendations are given regarding subjective characteristics.

All current amendments available at time of purchase are included with the purchase of this document.

More BS standard pdf

BS 5606:1990

BS 5606:1990

Guide to accuracy in building

$175.00 $350.52

BS 7319-2:1990

BS 7319-2:1990

Analysis of sodium chloride for industrial use-Method for determination of moisture content

$76.00 $152.40

BS 5401:1990

BS 5401:1990

Guide to information content and presentation of operators' manuals provided for tractors and machinery for agriculture and forestry

$85.00 $170.18

BS 7319-5:1990

BS 7319-5:1990

Analysis of sodium chloride for industrial use-Method for determination of calcium and magnesium contents

$73.00 $147.32