California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 1 - Unfired Pressure Vessel Safety Orders › Article 6 - Anhydrous Ammonia › Section 504 - Installation of Tanks on Transportation and Bulk Delivery Vehicles

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Transportation
					 tanks mounted on truck or trailer frames shall be placed on saddles or bolsters
					 with the center of gravity as low as possible. Such saddles, bolsters, and/or
					 other fastenings shall be designed to withstand a loading in any direction
					 equal to the loaded weight of the tank when filled to the maximum permissible
					 level with a factor of safety of at least 8. Transportation tanks of the
					 so-called "frameless-type" shall not be used in anhydrous ammonia service until
					 the design of the tank and tank supports has been submitted to the Division and
					 found acceptable. The installation must also comply with DOT requirements.
All transportation trailers shall be firmly and securely
						attached to the vehicle drawing them by means of suitable drawbars supplemented
						by a safety chain (or chains) or safety cables.
Every transportation trailer or semitrailer shall have a
						reliable system of brakes, and adequate provision shall be made to operate the
						brakes from the driver's seat.
Every transportation trailer shall be equipped with
						self-energizing brakes.
Transportation trailers shall be so designed that the
						towed vehicle will follow substantially in the path of the towing vehicle and
						will not whip or swerve dangerously from side to side.
Where a fifth wheel is employed, it shall be ruggedly
						designed, securely fastened to both units, and equipped with a positive locking
						mechanism which will prevent separation of the two units except by manual
						release.
(b) Every
					 transportation tank shall be protected by a suitable steel bumper attached to
					 the vehicle chassis or equivalent.
(c) All fittings on transportation tanks not
					 protected by the vehicle frame shall be located in recessed wells or otherwise
					 suitably guarded. Any such guards shall be designed to minimize the possibility
					 of rupturing the tank head or shall in case of vehicular accident. The recessed
					 well, if used, shall be of sufficient size and depth that the top of all
					 fittings will be located below the tank shell or head line. The recessed well
					 for safety relief valves shall be located at the top center of the tank and
					 shall be equipped with an unlocked hinged cover or equivalent.
(d) No anhydrous ammonia piping or valves
					 shall be installed within the cab or driver's compartment of a truck.
(e) All piping and fittings on the bottom of
					 transport and bulk delivery tanks shall be adequately guarded.
(f) All tank trucks and all trucks pulling
					 tank trailers used to transport anhydrous ammonia over 1,200 gallons water
					 capacity shall be equipped with the following minimum safety equipment which
					 shall be properly maintained and readily available for use:
(1) One pair of NH3
					 resistant gloves.
(2) Full face
					 mask for ammonia service
(3) One
					 fire extinguisher conforming to the provisions of Article 157 of the General
					 Industry Safety Orders and having a rating of not less than 20B-C.
(4) A container of not less than 5 gallons of
					 fresh water, so located as to permit immediate application. This container
					 shall have a suitable opening to permit rinsing of eyes.