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TITLE 3 DIVISION OF INDUSTRIAL . ' 'TY X8.11 ,—, UNFIRED PRESSURE VESSEL SAB../ORDERS (H"i]iar 76. No.32--37.76) (d) No anhydrous ammonia piping or valves shall be installed within the cab or driver's compartment of a truck. l (e) All piping and fittings on the bottom of transport and bulk deliv- ery tanks shall be adequately guarded. (f) All tank trucks and all trucks pulling tank trailers used to trans- port 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 NHa 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 2013-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 suita- ble opening to permit rinsing of eyes. (g) Each liquid withdrawal opening 2 inches nominal pipe size or larger on transportation tanks and bulk delivery vehicles over 1,200 gallons capacity shall be fitted with a remotely controlled internal shut- off valve of the type listed in Sections 507 (e) (3) through (5). Such tanks over 3,500 gallons capacity shall have 2 remote stations for the valve controls, 1 at each end of the tank and diagonally opposite each other. One control mechanism at each control station may be used to oper- ate all such remotely controlled valves. All replacement valves for the above service shall comply with these Orders, if the openings in the tank are adaptable for conversion. (h) Where excess-flow valves [See Section 507 (e) (2).] are used, all liquid and vapor lines shall be at least full size from the excess-flow valves in the tank to the point of discharge or an additional excess-flow valve or equivalent shall be located as close to the point of pipe size reduction or other restriction as is practical, unless the excess-flow valve in the tank is designed to operate at the reduced flow conditions, in which case the excess-flow valve in the tank may suffice. Where excess flow valves are used on tank trucks having 2 or more tanks with common loading and/or unloading lines, the common liquid or vapor lines shall be fitted with an excess-flow valve or equivalent in the common line in addition to the excess-flow valve in the tank open- ing (unless the common line has a cross-sectional area equal to or in excess of the combined areas of the individual tank lines or unless the excess flow valves in the tank are designed to operate at the reduced flow condition, in either of which case the excess-flow valve in the tank may suffice). Where additional excess-flow valves are used in common loading and/or unloading lines, the additional excess-flow valve or equivalent shall be located as close to the point of restriction as is practical. Note: A quick-closing manually operated valve may be consid- ered equivalent to an excess-flow valve at the point of pipe size reduction or other restriction providing: (1) It is equipped with a means for closing the valve manually from a point remote from the transfer hose connection.