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UL 1746:3ED 2007-01

Current
Current

The latest, up-to-date edition.

Standard for External Corrosion Protection Systems For Steel Underground Storage Tanks
Available format(s)

Hardcopy

Published date

17-01-2007

Publisher

Underwriters Laboratories

FOREWORD
INTRODUCTION
1. Scope
2. General
3. Glossary
CONSTRUCTION
4. General
PART 1 - PREENGINEERED CATHODIC PROTECTION SYSTEMS
CONSTRUCTION
5. Components
6. Cathodic Protection System Assembly
PERFORMANCE
7. Anode Pull and Durability Tests
8. Torque and Pullout Tests for Pressure Wire Connectors
9. Pullout Test for Test Lead
10. Dielectric Coating Tests
11. Tests for Insulating Devices (Bushings and Gaskets)
12. Cathodic Tank Assembly Tests
PART II - COMPOSITE TANKS
CONSTRUCTION
13. Components
PERFORMANCE
14. Physical Properties of Materials Tests
15. Corrosion Evaluation Tests
16. Composite Tank Assembly Tests
PART III - JACKETED TANKS
CONSTRUCTION
17. Components
PERFORMANCE
18. Physical Properties of Materials Tests
19. Corrosion Evaluation Tests
20. Jacketed Tank Assembly Tests
MANUFACTURING AND PRODUCTION TESTS
21. Leakage Tests (All Tanks)
22. Anode Continuity Test
23. Holiday Test
MARKING
24. General
SUPPLEMENT A
IDENTIFICATION TESTS
SA1. General
SA2. Specific Gravity
SA3. Ash Content
SA5. Percent Extractables
SA6. Differential Scanning Calorimetry
SA7. Thermogravimetric Analysis
SA8. Flexural Strength

These revisions to the Standard for External Corrosion Protection Systems for Steel Underground Storage Tanks, UL 1746, include the following: 1. Revisions to the scope section to clarify and update the requirements 2. Revisions to the glossary section to clarify, update, and provide consistency with other underground storage tank standards 3. Addition of a capacity and dimensions section and relocation of the requirements into this section 4. Revisions to the lift lug tests which includes the use of calculations for evaluating lift lugs 5. Deletion of abrasion test 6. Alternative to Lift Lug Test 7. Revision to indentation test for Part IV coated tanks 8. Deletion of terms Type I Tank and Type II Tank 9. Clarification of requirements for FRP matrix (resin & fibers)

1.1 These requirements cover pre-engineered corrosion protection systems intended to be factory installed on the exterior surface of steel underground atmospheric-type storage tanks intended for flammable and combustible liquids.

DocumentType
Standard
Pages
0
PublisherName
Underwriters Laboratories
Status
Current

ASTM E 2681 : 2013 Standard Guide for Environmental Management of Underground Storage Tank Systems Storing Hazardous Substances or Petroleum
NACE SP 02 85 : 2011 “Corrosion Control of Underground Storage Tank Systems by Cathodic Protection”
NFPA 1 : 2021 FIRE CODE
NACE RP 02 85 : 2002 CORROSION CONTROL OF UNDERGROUND STORAGE TANK SYSTEMS BY CATHODIC PROTECTION
UFC 3-460-01 : Change 3 UNIFIED FACILITIES CRITERIA - DESIGN: PETROLEUM FUEL FACILITIES
ICC IPC CODE & COMMENTARY : 2015 IPC® Code and Commentary
API 1615 REDLINE : 2011 INSTALLATION OF UNDERGROUND PETROLEUM STORAGE SYSTEMS
NFPA 30 FRENCH : 1996 FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE
API 1615 : 2011 INSTALLATION OF UNDERGROUND PETROLEUM STORAGE SYSTEMS
NFPA 31 : 2016 INSTALLATION OF OIL-BURNING EQUIPMENT
NFPA 30 : 2018 FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE
API 1626 REDLINE : 2010 STORING AND HANDLING ETHANOL AND GASOLINE-ETHANOL BLENDS AT DISTRIBUTION TERMINALS AND FILLING STATIONS
NFPA 58 : 2017 LIQUEFIED PETROLEUM GAS CODE
NFPA 1 : 2018 FIRE CODE
UL 58:10ED 2018-01 Standard for Steel Underground Tanks for Flammable and Combustible Liquids
API 1626 : 2010 STORING AND HANDLING ETHANOL AND GASOLINE-ETHANOL BLENDS AT DISTRIBUTION TERMINALS AND FILLING STATIONS

UL 83:16ED 2017-07 Standard for Thermoplastic-Insulated Wires and Cables

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