a) Vertical storage tank shall have a minimum capacity of 10,000 gallons of emulsified asphalt or cutback oil products. b) Tank shall be fabricated of minimum 'A" steel. c) Tank shall have an attached steel stand to place bottom of tank 8' above ground to allow gravity feed unloading. d) Insulation shall be minimum thickness of 3 inch fiberglass insulation rated to handle 24,000 watts of heat for Acterra tanks and 12,000 watts of heat for Duraco tanks. e) Cover insulation with aluminum sheeting for weather protection. f) Access ladder (rung style) to top of tank and access door. Ladder shall comply with OSHA 29 CFR 1910 OSHA General Industry Regulations Section 1910.28(b)9 and be equipped with personal fall arrest system. Top of tank shall have guardrail system with self-closing gate and allow use of the personal fall arrest system. Guardrail system shall comply with OSHA 29 CFR 1910 OSHA General Industry Regulations Section 1910.29. Guardrail shall have a standard enamel finish, color to be specified before ordering. h) Tank shall be heated with resistance heater probes capable of maintaining the operating temperature required for either emulsion or cutback oil products. Acterra tanks require 6 — 4,000 watt heater probes and Duraco tanks require 3 — 4,000 watt heater probes to obtain temperatures from 60 degree Fahrenheit to 280-300 degree Fahrenheit. Probes shall slide into sealed steel tubes installed inside the tank with the top being capped...
