ABNT NBR ISO 11381:2011
Optics and optical instruments - Ophthalmic optics - Screw threads

Standard No.

ABNT NBR ISO 11381:2011

Release Date

2011

Published By

BR-ABNT

Latest

ABNT NBR ISO 11381:2011

Replace

ABNT NBR 14996:2003

Scope

This Standard specifies requirements for ISO metric screw threads for use with spectacle frames. Provision is made for screw threads of the following nominal sizes: SO,8 × 02; M1,O × 0,25; M1,2 × 0,25; Ml,4 × 0,3; M1,6 × 0,35 and M2,O × 0,4 and for related aps and gauges.

ABNT NBR ISO 11381:2011 history

• 2013 NF G06-006-26:2013 Textiles - Quantitative chemical analysis - Part 26: mixtures of melamine and cotton or aramide fibres (method using hot formic acid)
• 2011 ABNT NBR ISO 11381:2011 Optics and optical instruments - Ophthalmic optics - Screw threads
• 0000 ABNT NBR 14996:2003