1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 142 Steel Aboveground Tanks for Flammable and Combustible LiquidsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATE
2、RIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Steel Aboveground Tanks for Flammable and Combustible Liquids, UL 142 Ninth Edition, Dated December 28, 2006 Summary of Topics This editorial revision of ANSI/UL 142 includes the follow
3、ing: 1. Editorial correction of removal of “V = Bracing” from Figure 13.1 caption 2. Editorial correction of Table 15.1, footnotes b and c, to correct metric equivalent of 25 feet Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line
4、in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The following table lists the future effective dates with the correspondi
5、ng reference. Future Effective Dates References July 19, 2017 Paragraphs 48.1.1, 48.4.1, 38.2, 38.3, 38.4, 38A.1, and 38A.2 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,
6、recording, or otherwise without 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, incident
7、al, consequential, indirect 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 sha
8、ll ULs liability for any damage 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 (
9、including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements
10、of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. AUGUST 26, 2014 UL 14
11、2 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2014 UL 142 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 28, 2006 (Title Page Repr
12、inted: August 26, 2014) 1 UL 142 Standard for Steel Aboveground Tanks for Flammable and Combustible Liquids The rst edition was titled Horizontal and Vertical Aboveground Storage Tanks for Hazardous Liquids. The second edition was titled Aboveground Storage Tanks for Hazardous Liquids. First Edition
13、 December, 1922 Second Edition October, 1953 Third Edition May, 1968 Fourth Edition December, 1972 Fifth Edition December, 1981 Sixth Edition September, 1987 Seventh Edition April, 1993 Eighth Edition July, 2002 Ninth Edition December 28, 2006 This ANSI/UL Standard for Safety consists of the Ninth e
14、dition including revisions through August 26, 2014. The most recent designation of ANSI/UL 142 as an American National Standard (ANSI) occurred on July 18, 2013 ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. The Department
15、of Defense (DoD) has adopted UL 142 on August 11, 1989. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Pro
16、posal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those
17、Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 142-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 15, 2007 UL 142 2 No Text on This PageUL COPYRIGHTED MATERIA
18、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 General 7 2.1 Units of Measurement .7 2.2 Undated references .7 3 Glossary .7 CONSTRUCTION ALL TANKS 4 Capacities and Dimensions .8A 5 Materials .8A 6 Joints 9 7 Tank Connections 1
19、5 8 Venting .22 9 Manholes .25 10 Fill, Drain, and Gauge Openings 33 11 Painting .33 PART I PRIMARY CONTAINMENT TANKS HORIZONTAL CYLINDRICAL CONSTRUCTIONS 12 General 33 13 Construction .33 13.1 Capacities and dimensions 33 13.2 Steel thickness .34 13.3 Heads and head joints 34 13.4 Compartment tank
20、construction 37 VERTICAL CYLINDRICAL CONSTRUCTIONS 14 General 39 15 Construction .40 15.1 Capacities and dimensions 40 15.2 Steel thickness .40 15.3 Tank top (roof) .40 15.4 Tank bottom (oor) .41 RECTANGULAR CONSTRUCTIONS 16 General 41 17 Construction .41 17.1 General .41 17.2 Steel thickness .41 18
21、 Performance .41 18.1 Hydrostatic strength test 41 18.2 Top load test 42 DECEMBER 15, 2007 UL 142 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART II SECONDARY CONTAINMENT TANKS ALL SECONDARY CONTAINMENT TANK CONSTRUCTIONS 19 General 42
22、 HORIZONTAL CYLINDRICAL CONSTRUCTIONS 20 General 42 21 Construction .42 VERTICAL CYLINDRICAL CONSTRUCTIONS 22 General 42B 23 Construction .44 23.1 General .44 23.2 Tank bottom (oor) .44 RECTANGULAR CONSTRUCTIONS 24 General 45 25 Construction .45 26 Performance Test .45 26.1 Hydrostatic strength test
23、 45 26.2 Top load test 45 PART III DIKED TANKS 27 General 45 27.1 Details 45 27.2 Dike capacity 46 28 Construction .46 28.1 All diked tanks .46 28.2 Open top dike constructions .46 28.3 Closed top dike constructions 46 29 Performance Tests 47 29.1 General .47 29.2 Buoyancy test .47 29.3 Hydrostatic
24、load test 47 PART IV TANK SUPPORTS 30 General 47 30.1 All constructions 47 30.2 Horizontal cylindrical tank constructions .47 30.3 Vertical cylindrical tank constructions .48 30.4 Rectangular tank constructions 48 31 Construction .48 31.1 General .48 31.2 Saddles .48 32 Performance Tests 50 FEBRUARY
25、 12, 2010 UL 142 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART V TANK ACCESSORIES, COMPONENTS, AND SPECIAL CONSTRUCTIONS 33 General 50 33.1 All types 50 33.2 Materials 50 34 Ladders .50 35 Stairs 51 36 Runways 51 37 Heating Coils and
26、 Hot Wells .52 38 Sumps 52 38A Minor Tank Accessories 52 PERFORMANCE TEST METHODS 39 Tank Leakage Test 52A 39.1 Caution 52A 39.2 Primary containment tanks .52A 39.3 Secondary containment tanks 52A 40 Hydrostatic Strength Test .52B 40.1 General 52B 40.2 Test apparatus .52B 40.3 Primary containment ta
27、nks 54 40.4 Secondary containment tanks 54 41 Top Load Test 56 42 Buoyancy Test .56 43 Hydrostatic Load Test .56 44 Tank Support Load Test .56 44A Lift Lug Test .56A MANUFACTURING AND PRODUCTION TESTS 45 Primary and Secondary Containment Tanks .57 46 Diked Tanks .57 MARKINGS 47 General 57 48 Marking
28、 Elements .58 48.1 All tanks 58 48.2 Compartment tanks .58 48.3 Secondary containment tanks 58A 48.4 Diked tanks 58A 48.5 Rectangular tanks 59 49 Marking Method and Location 59 APPENDIX ACapacity and Wetted Area Tables JULY 19, 2013 UL 142 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
29、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover steel primary, secondary and diked type atmospheric storage tanks intended for noncorrosive, stable ammable and combustible liquids that have a specic gravity not exceeding 1.0 in aboveground applicatio
30、ns. 1.1 revised December 15, 2007 1.1.1 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. 1.1.1 added December 15, 2007 1.2 These tanks
31、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 Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A; the Standard for the Installation and Use of Stationary Co
32、mbustion Engines and Gas Turbines, NFPA 37; the Uniform Fire Code, NFPA 1; and the International Fire Code published by the International Code Council. 1.2 revised December 15, 2007 1.3 The tanks covered by these requirements are fabricated, inspected and tested for leakage before shipment from the
33、factory as completely assembled vessels. 1.3 revised December 15, 2007 1.4 These requirements do not apply to tanks covered by the Specication for Field-Welded Tanks for Storage of Production Liquids, API 12D; and the Specication for Shop-Welded Tanks for Storage of Production Liquids, API 12F. 1.4
34、revised December 15, 2007 1.5 Deleted December 15, 2007 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. 1.6 revised December 15, 2007 1.7 These requirements do not cover
35、 portable tanks intended for transporting ammable 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. 1.7 revised December 15, 2007 DECEMBER 15, 2007
36、UL 142 6UL 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 parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Undated references
37、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 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.1.1 ABOVEGROUND TANK (ABOVEGROUND STORAG
38、E TANK or AST) A storage tank that is intended for installation above grade, at grade or below grade without backll. 3.1.1 added December 15, 2007 3.2 ATMOSPHERIC TANK A storage tank that has been designed to operate at pressures from 0.5 psig to 1.0 psig ( 3.4 kPa to 6.9 kPa) measured at the top of
39、 the tank. 3.2 revised December 15, 2007 3.3 Deleted December 15, 2007 3.3.1 DIKE A single wall construction forming a bottom and sides with open or closed top intended to provide secondary containment of aboveground tank(s) but not intended to be pressurized for leak testing. Dike types include com
40、binations of rectangular or cylindrical shapes or horizontal or vertical orientations. Open top dike constructions do not have covers to prevent precipitation or debris from entering the dike area. Closed top dike constructions have covers to resist precipitation or debris from entering the dike are
41、a. 3.3.1 added December 15, 2007 3.4 DIKED TANK A primary or secondary containment tank within a steel open or closed dike intended to provide at least 110 percent containment capacity of the primary tank(s) and spill containment. 3.4 revised December 15, 2007 3.5 Deleted December 15, 2007 3.6 EMERG
42、ENCY VENT A storage tank opening or device that automatically relieves excessive internal pressure due to an external re exposure or blockage of the normal vent. 3.6 revised December 15, 2007 3.6.1 INTERSTITIAL SPACE (ANNULAR SPACE or INTERSTICE) A space between the walls of a multiple wall tank tha
43、t is capable of communicating uid from a leak in an adjacent wall to a collection point for monitoring. 3.6.1 added December 15, 2007 DECEMBER 15, 2007 UL 142 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.7 NORMAL VENT A storage tank op
44、ening or device that automatically relieves internal pressure or vacuum during normal storage (atmospheric pressure equalization) and during normal operations (ll or withdraw). Normal vents are designed so as not to exceed 1.0 psig (6.9 kPa) pressure and minus 0.5 psig (minus 3.4 kPa) in the tank. 3
45、.7 revised December 15, 2007 3.8 Deleted December 15, 2007 3.8.1 PERFORMANCE TESTS A complete evaluation conducted on a limited quantity of representative tanks. These tests are intended to verify compliance with all applicable performance requirements in a standard. 3.8.1 added December 15, 2007 3.
46、8.2 PRIMARY CONTAINMENT The ability of a tank design and construction to contain a liquid while in normal use. 3.8.2 added December 15, 2007 3.9 PRIMARY CONTAINMENT TANK The wall of a tank construction that provides primary containment. 3.9 revised December 15, 2007 3.9.1 PRODUCTION TESTS A limited
47、evaluation conducted on each tank prior to shipping. These tests are intended to verify compliance with production requirements in a standard, such as leakage. 3.9.1 added December 15, 2007 3.9.2 SECONDARY CONTAINMENT The ability of a tank design or construction to contain a liquid only in abnormal
48、use (from primary containment leakage or rupture). 3.9.2 added December 15, 2007 3.10 SECONDARY CONTAINMENT ABOVEGROUND TANK FOR FLAMMABLE LIQUIDS A primary containment aboveground tank contained within a steel secondary containment shell forming an interstitial (annular) space, which is capable of
49、being monitored for leakage into the space from either the interior or exterior walls. Secondary containment aboveground tank types include: horizontal cylindrical, vertical cylindrical, and rectangular. 3.10 revised December 15, 2007 3.11 STORAGE TANK (TANK) A vessel having a liquid capacity that exceeds 60 gal (230 L), is intended for stationary installation, and is not used for processing. 3.11 revised December 15, 2007 3.12 TANK ACCESSORY Optional devices or
