§ 39.578. Goggle interior construction standards.
(a) Temples shall be made of a material that withstands sterilization and does not readily corrode nor discolor the skin. Ear hooks for temples shall be flexible, properly bent to fit the ear, and finished or covered so as not to cut or irritate the skin. If a covering is used, it shall extend for half the length of the temples and be of a material which does not readily deteriorate in service. Temples shall be fastened to the frame with a screw or rivet in addition to the one which holds the lens in place. Temples shall fold over the lens when stored. No part shall be composed of quick-burning material.
(b) Short temples may be substituted for regular temples. They shall be made of a material that does not readily corrode or discolor the skin, and shall be attached to the frame in the same manner as, and be interchangeable with, the regular temples. A headband shall be fastened to the outer ends of the short temples and shall be adjustable as to length and easily replaceable. No part shall be composed of quick-burning material.
(c) In lieu of regular temples or short temples a headband or headgear shall be supplied of any suitable material and design that properly retains the goggles in position and affords comfort and protection to the wearer. Such headgear shall be adjustable as to size or shall be supplied in properly assorted sizes. No part shall be composed of quick burning material.
(d) Nose pieces, bridges, or connecting links between lens frames shall have the portions that come in contact with the skin of a material that do not readily corrode and do not discolor the skin. The construction shall be substantial and the nose piece, bridge or connecting link shall be securely fastened to the lens frames. If the weight of the goggles is borne by the bridge or nosepiece resting on the crest or sides of the nose of the wearer, such portions of the goggles shall afford comfortable bearing surfaces. The nosepiece, bridge, or connecting link shall be constructed so as to be readily adjustable, or the goggles shall be furnished in assorted sizes. No part shall be composed of quick-burning material.
(e) Eyecups shall be made of metal or of fiber or of other substantial material which withstand sterilization, shaped to fit the configuration of the face and shall be constructed so as to afford adequate ventilation. Parts touching the face shall be made of heat-insulating material and shall be properly edged to prevent cutting the face. The eyecup shall be flexibly connected with a coupling which permit ready adjustment; otherwise goggles shall be furnished in assorted sizes. The coupling or center piece shall be covered with or made of heat-insulating material which withstands sterilization and which may be readily renewed. Goggles shall be supplied with a headband or headgear of any suitable material and design so as to retain the goggles in their proper position. Each pair of goggles shall bear some permanent distinctive marking by which the source may be readily identified. No part shall be composed of quick-burning material.
(f) Lenses for goggles of type 3 shall be made to conform to the specifications set forth in § 39.572 (relating to lenses and windows).
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