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(a) The covers on kettles shall be constructed to close tightly.
(b) Kettles shall be equipped with adjustable supports for use in setting kettles so that they are prevented from turning over.
(c) Relief Valve. The fuel tank of every kettle that depends upon the pressure of power-pumped (machine compressed) air for fuel delivery shall be equipped with a spring-loaded relief valve set to pop at a pressure not to exceed the maximum safe working pressure of the vessel, but in no case greater than 60 pounds per square inch.
(d) A Class BC fire extinguisher shall be kept near each kettle in use. Extinguisher capacity shall be at least as follows:
Less than 150 gallons............................. 8:B.C.
150 to 350 gallons................................ 16:B.C.
Larger than 350 gallons........................... 20:B.C.
(e) An extension handle of sufficient length to permit safe closing of a stuck spigot shall be accessible near the kettle at all times.
(f) Kettle and tanker pumps shall be provided with a means of stopping the flow of hot asphalt or pitch manually from the roof top in emergencies when an attendant is not provided within 100 feet horizontally or 20 feet vertically from the kettle or tanker.
(g) Pumper pipelines shall be securely fastened at roof top and shall not be supported by ladders used for access.
(h) Kettles shall have the following safety features:
(1) A fluid level indicator, such as a dipstick, that will indicate the level of liquid asphalt or pitch within the kettle without the necessity of opening the lid for direct observation.
(2) Vents providing a total open area of not less than 100 square inches for up to 200 gallons capacity and not less than 200 square inches for kettles of larger capacities.
NOTE: See Sections on LP-Gas use, Article 32.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment of subsections (a) and (h) filed 12-15-86; effective thirtieth day thereafter (Register 86, No. 51).
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