30 C.F.R. § 20.6 – General requirements. | Midpage- (a) The lamps shall be durable in construction, practical in operation, and suitable for the service for which they are designed and approved.
- (b) The intensity of light, distribution of light, and battery capacity shall be adequate for the use for which the lamp is intended.
- (c) Battery terminals and leads therefrom, as well as the battery gas vents, shall be designed to minimize corrosion of the electrical contacts.
- (d) Bulbs and other replacement parts of the lamps shall be adequately marked as a means of identification.