Ophthalmic optics. Uncut finished spectacle lenses - Minimum requirements for spectacle lens surfaces claimed to be abrasion-resistant Ingestion-build-156411 The standard is also applicable

The standard is also applicable to alarm transmission systems in which signalling links are shared with other services

current sensor)

d) measurement data processing in order to estimate a set of one-third octave band roughness spectra

It provides tools for authorization

NOTE 1 This International Standard does not deal with the shape and dimensions of the plates or with the spacing (centre-to-centre distance) of the holes and slots

Ophthalmic optics. Uncut finished spectacle lenses - Minimum requirements for spectacle lens surfaces claimed to be abrasion-resistant Ingestion-build-156411 The standard is also applicable1 Scope This part of ISO 8980 specifies the requirement and test method for spectacle lens surfaces that are claimed to provide a basic level of abrasion resistance including those with coatings. A lens claimed to be abrasion resistant shall meet the requirements on both front and back surfaces. Lens powers and surface form is restricted for testing, however test results are applicable to claims for lenses and lens surfaces with identical properties