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The APEX CN129012SF5N is an Atlas Double Duty Oil Gauging Tape designed for measuring fluid levels in storage tanks and similar industrial applications. The blade is constructed from steel with a Chrome Clad/Nubian finish, offering corrosion resistance and dual-side readability suited for oil and petroleum gauging work. The blade measures 18 feet in length and 0.5 inches in width, with a D1-style profile. The overall case length is 6.1 inches. This tool is a standard instrument used by tank gaugers, petroleum technicians, and field service professionals who require accurate ullage and innage measurements.
This gauging tape is used in petroleum storage, tank farm operations, and industrial fluid management applications. The Double Duty designation indicates the tape is graduated for both innage and ullage readings, making it versatile for measuring actual fluid depth or the empty space above the fluid. The Chrome Clad/Nubian blade finish supports readability in wet or oily conditions. The bob cut is specified as 590, which identifies the compatible plumb bob style for this tape. Suitable for use in above-ground storage tanks and similar environments where manual tank gauging is required.
Designed for use with a Bob Cut 590 style plumb bob. Intended for Atlas Double Duty gauging tape applications requiring an 18-foot steel blade with Chrome Clad/Nubian finish.
Oil gauging tapes are deployed by trained tank gauging or petroleum service technicians in accordance with applicable industry standards such as API Manual of Petroleum Measurement Standards. Before gauging, confirm the tank is not under pressure and that proper safety protocols for flammable or combustible liquids are in place. Do not force the tape or bob into restricted gauge hatches. Inspect the blade and bob connection for wear or damage before each use.
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