Specifies the characteristics of formers which are used in edging machines to edge lenses designed for insertion into spectacle frames. Not applicable to separate formers required for supplementary treatment of lenses, for example facetting.

  • Standard
    5 pages
    English language
    sale 10% off
    e-Library read for
    1 day

Specifies requirements for ISO metric screw threads for use with spectacle frames. Provision is made for screw threads of the following nominal sizes: S0,8 × 0,2, M1,0 × 0,25, M1,2 × 0,25, M1,4 × 0,3, M1,6 × 0,35 and M2,0 × 0,4, and for related taps and gauges (in accordance with ISO 529 and ISO 1502).

  • Standard
    6 pages
    English language
    sale 10% off
    e-Library read for
    1 day

Specification of criteria for the marking of spectacle frames.

  • Standard
    6 pages
    English language
    sale 10% off
    e-Library read for
    1 day

Specification of a uniform measuring system in order to avoid that spectacles are manufactured incorrectly.

  • Standard
    5 pages
    English language
    sale 10% off
    e-Library read for
    1 day