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This document specifies fundamental requirements and their test methods for unglazed spectacle frames designed for use with prescription lenses. It is applicable to spectacle frames at the point of sale by the manufacturer or supplier to the retailer.

This document is applicable to:

.     all mass-produced spectacle frame types, including rimless mounts, semi-rimless mounts and folding spectacle frames;

.     spectacle frames made with additive manufacturing, for example, 3D printing;

.     spectacle frames made from natural organic materials;

.     the frame or mount of clip-ons designed specifically for attachment to particular models of spectacle frame, but not to their lenses or filters to which ISO 16034 or ISO 12312-1 apply;

.     prescription inserts designed for attachment to particular models of, for example, eye protector, sunglass or diving mask.

Parts of this document are applicable to custom-made frames . see 3.1.3 and Table 1.

NOTE            See Annex A for recommendations on the design of spectacle frames and terms to be used when describing metal frames.

This document is not applicable to spectacle frames used in eye protection, where ISO 16321-1 applies, or to sunglasses with afocal filters, where ISO 12312-1 applies.