- (a) Vapor areas shall be limited to the smallest practical space by maintaining a properly designed system of mechanical ventilation arranged to move air from all directions towards the vapor origin area to a safe outside location. Ventilating systems shall conform to Section 5154.
- (b) Required ventilating systems shall be so arranged that the failure of any ventilating fan shall automatically stop any dipping conveyor system.
- (c) When a required ventilating system serves associated drying operations utilizing a heating system which may be a source of ignition, means shall be provided for pre-ventilation before heating system can be started; the failure of any ventilating fan shall automatically shut down the heating system; and the installation shall otherwise conform to NFPA Standard for Ovens and Furnaces (NFPA No. 86A1977).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
History
1. Amendment of subsections (a) and (c) filed 11-18-76; effective thirtieth day thereafter (Register 76, No. 47).
2. Amendment of subsection (c) filed 12-5-86; effective thirtieth day thereafter (Register 86, No.51).