1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 142A Special Purpose Aboveground Tank for Specic Flammable or Combustible Liquids STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT P
2、ERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Special Purpose Aboveground Tank for Specic Flammable or Combustible Liquids, UL 142A First Edition, Dated May 25, 2018 SUMMARY OF TOPICS This revisi
3、on to the rst edition of the Standard for Safety for Special Purpose Aboveground Tanks for Specic Flammable or Combustible Liquids, UL 142A, is being issued to correct the publication date on the title page. This is an editorial correction, no requirements have changed The new requirements are subst
4、antially in accordance with Proposal(s) on this subject dated October 6, 2017 and March 16, 2018. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise wi
5、thout prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirec
6、t or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any d
7、amage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attor
8、neys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 25, 2018 UL 142A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 25, 2018 UL 142A tr2
9、 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 25, 2018 1 UL 142A Standard for Special Purpose Aboveground Tanks for Specic Flammable or Combustible Liquids First Edition May 25, 2018 This ANSI/UL Standard for Safet
10、y consists of the First Edition. The most recent designation of ANSI/UL 142A as an American National Standard (ANSI) occurred on May 24, 2018. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. Comments or proposals for revisions on any part of the Stand
11、ard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way.
12、All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2018 UNDERWRITERS LABORATORIES INC. ANSI/UL 142a-2018UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS
13、ION FROM UL MAY 25, 2018 UL 142A 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 General 6 2.1 Units of measurement.6 2.2 Undated references .6 3 Glossary .6 CONSTRUCTION 4 General Con
14、struction for All Special Purpose Tanks.9 4.1 Containment type, shape, orientation, dimensions and capacity 9 4.2 Materials and joints .9 4.3 Openings and connections .10 4.4 Interstitial spaces 10 4.5 Manways .10 4.6 Painting 11 5 Specic Construction of Special Purpose Tanks .11 5.1 Generator base
15、tanks 11 5.2 Work top tanks 12 5.3 Lube oil tanks .13 5.4 Used oil tanks.14 5.5 Day tanks 15 5.6 Supports, accessories and components 16 PERFORMANCE 6 General Performance for All Special Purpose Tanks .17 6.1 General 17 6.2 Loading and lifting tests 17 6.3 Leakage and strength tests .19 MANUFACTURER
16、 AND PRODUCTION TESTS 7 Production Leakage Tests 20 MARKINGS 8 General Markings, and Methods for All Special Purpose Tanks20 9 General Markings for All Special Purpose Tanks.21 10 Special Markings for Each Special Purpose Tank Type22 MAY 25, 2018 UL 142A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
17、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover special purpose steel aboveground tanks for specic fuels or liquids and/or use applications as indicated for each special purpose tank type, which are intends to address the specic design
18、s, features, limitations, use factors and other unique characteristics of each type. These requirements are not covered by UL 142 for general purpose steel aboveground tanks for ammable and combustible liquids, as each special purpose tank deviates from them by construction, performance and/or marki
19、ngs for the intended use. The basic types of different special purpose tanks covered by this Standard are: a) Generator base tanks are designed for combined combustible fuel storage and structural support for diesel or turbine engine power generators, and are intended to be installed in accordance w
20、ith the Installation and Use of Stationary Combustion Engines and Gas Turbines, NFPA 37, or Emergency and Standby Power Systems, NFPA 110. Generator base tanks are limited to Combustible Class II or III fuels, such as diesel, kerosene, turbine oils or heavy oils. Covered options may include re resis
21、tance, damage resistance and/or tank support evaluations. b) Work top tanks are designed for combined combustible liquid storage and structural working surface, and are intended to be installed in accordance with NFPA 30, Code for Flammable and Combustible Liquids, NFPA 30A, Code for Motor Fuel Disp
22、ensing Facilities and Repair Garages, or NFPA 31, Installation of Oil-Burning Equipment. Work top tanks are limited to Combustible Class III liquids, such as heavy fuel oils, new/used lube oils, hydraulic/transmission oils, or similar working uids. Covered options may include racks, shelves and/or t
23、ank support evaluations. c) Lube oil tanks are designed for storage of unused lubricating oils and similar combustible liquids, and are intended to be installed in accordance with NFPA 30, Code for Flammable and Combustible Liquids, NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Gara
24、ges, or NFPA 31, Installation of Oil-Burning Equipment. Lube oil tanks are limited to Combustible Class IIIB oils, such as motor crankcase oils, hydraulic/transmission oils, machine/ cutting oils, or similar uids. Covered options may include dispensing equipment and/or tank support evaluations. d) U
25、sed oil tanks are designed for storage of used lubricating oils and similar combustible liquids, and are intended to be installed in accordance with NFPA 30, Code for Flammable and Combustible Liquids, NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, or NFPA 31, Installation o
26、f Oil-Burning Equipment. Used oil tanks are limited to Combustible Class IIIB oils, such as motor crankcase oils, hydraulic/transmission oils, machine/ cutting oils, or similar uids. Covered options may include recycling equipment and/or tank support evaluations. e) Day tanks are designed for a smal
27、l temporary or backup supply of fuel for engine-driven equipment, such as pumps or generators, and fuel-burning appliances such as furnaces or heaters, or other portable equipment typically used in farm, construction, mining, forestry, or similar applications, and are intended to be installed in acc
28、ordance with NFPA 30, Code for Flammable and Combustible Liquids, NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 31, Installation of Oil-Burning Equipment, NFPA 37, Installation and Use of Stationary Combustion Engines and Gas Turbines, or NFPA 110, Emergency and Standb
29、y MAY 25, 2018 UL 142A 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Power Systems. Day Tanks are limited to specic fuels as marked, such as Flammable Class I gasoline or Combustible Class II kerosene, diesel fuel or heating oil. Covered
30、options may include dispensing equipment and/or tank support evaluations. 1.2 All special purpose tanks are atmospheric types, but may be of primary, secondary or diked containment designs; constructed in cylindrical or rectangular shapes; oriented horizontally or vertically, and have additional fea
31、tures or options, as described for each tank type. 1.3 All special purpose tanks are shop fabricated, but may be either completely assembled at the factory, or allow for limited eld assembly. However, only the optional accessories which are described in this Standard and have been evaluated to appli
32、cable requirements are covered items for each tank type. 1.4 These requirements cover only the accessories, components and features specically identied in this Standard. Any other accessories or components that are shipped with the tanks, attached to the tanks, or added to the tanks are not included
33、 in the scope of the tank evaluation. It is intended that the AHJ approve the use and/or installation of any such accessories or components independent of the evaluated tank. 1.5 For some special purpose tank types, it is expected that generators, engines, pumps or other equipment may be mounted on
34、or connected to the tank. However, these devices are not covered or evaluated by the requirements of this Standard, other than the structural integrity of the tank at rated loads. 1.6 These requirements do not cover portable tanks intended for transporting ammable or combustible liquids (such as by
35、truck, rail, ship or air), or mobile use applications (such as on vehicles or trailers). These types of products are covered by separate UN, DOT, or other specic end product standards. 1.7 These requirements do not cover special evaluations for resistance to hurricanes, tornadoes, earthquakes, oods,
36、 or other natural disasters; or re and damage resistance, except for generator base tank options. However, assessment of any damage for continued use after such events are not included in the evaluation. 1.8 These requirements do not cover general purpose tanks, which are found in the Standard for S
37、teel Aboveground Tanks for Flammable and Combustible Liquids, UL 142, or fuel oil tanks, which are found in the Standard for Steel Tanks for Oil Burner Fuel and Other Combustible Liquids, UL 80. 1.9 The common fuel, oil and other liquid terms referenced in this Standard are intended to be those whic
38、h are commercially available, and which meet a recognized industry specication, such as ASTM or SAE. MAY 25, 2018 UL 142A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 General 2.1 Units of measurement 2.1.1 Values stated without parenth
39、eses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Undated references 2.2.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 3 Glos
40、sary 3.1 For the purposes of this Standard the following denitions apply. 3.2 Aboveground Tank A storage tank that is intended for installation above grade, at grade or below grade without backll. 3.3 Atmospheric Tank A storage tank that has been designed to operate at pressures from minus 0.5 psig
41、to 1.0 psig (minus 3.4 kPa to 6.9 kPa) at the top of the tank. 3.4 Diked Containment A single wall construction with bottom, sides, and an open or closed top intended to provide secondary containment of aboveground tank(s). The dike area is capable of being monitored for leakage, but cant be pressur
42、ized. 3.5 Diked Containment Tank (Dike Tank) A primary or secondary containment tank within a steel open or closed dike intended to provide at least 110 percent spill containment of the primary tank(s). Open top dikes do not have covers to prevent precipitation or debris from entering the dike area.
43、 Closed top dikes have covers to resist precipitation or debris from entering the dike area. 3.6 Fuel A ammable or combustible liquid which is commercially available as an energy source for spark ignition or compression ignition engines, generators, turbines, heaters, or similar equipment; and meet
44、appropriate ASTM Fuel Specications, such as: a) Gasoline General description of various Flammable Class I petroleum distillates and alcohol blends compliant with ASTM D4814 or ASTM D5798 in a range of E0 to E83 typically used in spark ignition engines. b) Diesel General description of various Combus
45、tible Class II petroleum distillates and biodiesel blends compliant with ASTM D975 or ASTM D7467 in a range of B0 to B20 typically used in compression ignition engines. c) Fuel Oil/Heating Oil General description of various Combustible Class II petroleum distillates and biodiesel compliant with ASTM
46、 D396 in a range of B0-B5 typically used in heating equipment. d) Kerosene General description of various Combustible Class II petroleum distillates compliant with ASTM D3699 typically used in cooking, heating, lighting or similar equipment. e) Turbine Oil General description of various Combustible
47、Class II petroleum distillates compliant with ASTM D2880 typically used in turbine type engines or generators. MAY 25, 2018 UL 142A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.7 General Purpose Tank A steel aboveground tank type cover
48、ed by the requirements of UL 142, which are intended for a broad range of applications for storage of ammable and combustible liquids. 3.8 Interstitial Space (Interstice) A space between the walls of a multiple wall tank that is capable of communicating uid from a leak in an adjacent wall to a colle
49、ction point for monitoring. 3.9 Oil A combustible liquid which is commercially available as a lubricating oil or working uid for engines, machines, or similar equipment; and meet appropriate SAE or Similar Specications, such as: a) Motor Oil or Lube Oil General description of various Class IIIB petroleum distillate or synthetic type oils with higher viscosity typically used as lubricants in engines or machinery applications. b) Hydraulic Oil or Transmission Oil General description of
