NF S11-421-1:2006
Ophthalmic optics - Semi-finished spectacle lens blanks - Part 1 : specifications for single-vision and multifocal lens blanks.

Standard No.

NF S11-421-1:2006

Release Date

2006

Published By

Association Francaise de Normalisation

Status

Be replaced

Replace By

NF S11-421-1:2016

Latest

NF S11-421-1:2016

Replace

NF S11-421:1997

NF S11-421-1:2006 history

• 0000 NF S11-421-1:2016
• 2006 NF S11-421-1:2006 Ophthalmic optics - Semi-finished spectacle lens blanks - Part 1 : specifications for single-vision and multifocal lens blanks.
• 1997 NF S11-421:1997 Ophthalmic optics. Semi-finished spectacle lens blanks. Part 1 : specifications for single-vision and multifocal lens blanks.