UL 142 PDF
Price range: $109.08 through $218.16
Steel Aboveground Tanks for Flammable and Combustible Liquids
1 Scope
1.1 These requirements cover steel primary, secondary and diked type atmospheric storage tanks intended for the storage of noncorrosive, stable flammable and combustible liquids with a specific gravity (spg) not exceeding 1.0 in aboveground applications, except for tanks storing liquids with a specific gravity that exceeds 1.0, covered in Section 12.
1.2 Each tank type may be fabricated in a combination of various shapes (cylindrical, rectangular or obround) and orientations (horizontal, vertical) with or without multiple compartments, as covered in this Standard.
1.3 These tanks are intended for installation and use in accordance with the Flammable and Combustible Liquids Code, NFPA 30; the Standard for Installation of Oil-Burning Equipment, NFPA 31; the Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A; the Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines, NFPA 37; the Uniform Fire Code, NFPA 1; and the International Fire Code published by the International Code Council.
1.4 The tanks covered by these requirements are fabricated, inspected and tested for leakage before shipment from the factory as completely assembled vessels.
1.5 These requirements do not apply to tanks covered by the Specification for Field-Welded Tanks for Storage of Production Liquids, API 12D; and the Specification for Shop-Welded Tanks for Storage of Production Liquids, API 12F.
1.6 These requirements do not cover special evaluations for resistance to hurricanes, tornadoes, earthquakes, floods, or other natural disasters; or resistance to vehicle impact.
1.7 These requirements do not cover portable tanks intended for transporting flammable or combustible liquids (such as shipping containers), or mobile use applications (such as mounted on a trailer). These types of products are covered by separate UN, DOT, or equipment product standards.
Summary of Topics
This revision of ANSI/UL 142 dated January 21, 2021 includes the following changes in requirements:
– Revising Section 35 – 38 requirements for revised OSHA references to correct current inaccuracies; 36.1, 36.3 – 36.5, Section 37, Section 38, 52.1.1
– Add requirements for double wall manways for aboveground tanks; 9.6, Figure 9.5, Table 9.5
– Revise Table 23.1 to reverse a change made in error
– Leakage Test revisions to differentiate between requirements for Performance and Production testing; 42.2.1
– Addition of section for Alignment of Structural Members; Section 50A
– Editorial corrections; 1.3, 8.5, 8.6, Table 8.1, 8.9, 12.2, 12.3, 23.4, 52.1.1, 53.4
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