introduction
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ISO 12870-2016 Ophthalmic optical frames Requirements and test methods

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The committee responsible for this document is ISO/TC 172, Optics and Photonics, Subcommittee SC 7, Ophthalmic Optics and Instrumentation.

The fourth edition cancels and replaces the third edition (ISO 12870:2012), which was technically revised with the following changes:

8.8 and Appendix C are now included in more specific standards (ISO/TS 24348:2014 and EN 16128:2015, respectively) and are now included as appropriate references to this international standard (see 4.2.3 and Annex C).

ISO 12870-2016 Ophthalmic optical frames Requirements and test methods

1 Range
This standard specifies the basic requirements for unglazed frames designed for use with all prescription lenses. It applies to the framework of the manufacturer or supplier’s point of sale to the retailer.

This international standard applies to all types of frames, including frameless frames, semi-frameless frames and folding frames. It is also suitable for spectacle frames made of natural organic materials.

Note For recommendations on the design of eyeglasses frames, see Annex A.

This standard does not apply to complete custom spectacle frames or products specifically designed to provide individual eye protection.

2 Normative references
All or part of the following documents are referred to normatively in this document and are required for their application. For dated references, only the cited version applies. For undated references, a new version of the reference (including any revisions) applies.

ISO 105-A02, textiles – Color fastness testing – Part A02: Grayscale for evaluating color changes

ISO 105-B02, textiles – Testing for colour fastness – Part B02: Colour fastness to artificial light: xenon arc fading lamp test

ISO 12870-2016 Ophthalmic optical frames Requirements and test methods

ISO 3696, analytical laboratory water – Specifications and test methods

ISO 7998, Ophthalmic optics – Spectacle frames – List of equivalent terms and vocabulary

ISO 8596, Ophthalmic optics – visual acuity test – Standard visual patterns and their presentation

ISO 8624:2011, Ophthalmic optics. Spectacle frames – Measuring systems and terminology

ISO 11380, optics and optical instruments – Ophthalmic optics – molding machines

ISO 11381, optics and optical instruments – ophthalmic optics – thread

ISO/TS 24348:2014, Ophthalmic optics – Frames – Methods for wear simulation and nickel release detection of metal and composite frames

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 7998 and ISO 8624 and the following provisions apply.

3.1 Eyeglass frame model

The frames are manufactured according to a universal design, using the same materials (but not necessarily the same pigmentation) and finish

3.2 Natural organic materials

Materials that are not synthesized from other organic raw materials remain essentially in their original state when processed

Note 1: In this context, processing is defined as cutting, forming, laminating, gluing, bending, polishing and heating.

Example: Natural horn, bamboo and wood.

3.3 Customize spectacle frames

Eyeglasses frames specially tailored for designated patients

Example: eyeglass frames made specifically for wearers with unusual facial features.

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