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12/15/2016 Standards Catalog <br /> ipS4 f.)f ;s u { of �,� L . f� frn f.ri l✓G,.` Y: t.r��< <br /> ® <br /> UL 2039 <br /> Flaile ConnectorPiping for Fuels <br /> DETAILS <br /> Edition Number : 1 ANSI Approved , -- <br /> Edition Date : 2016-05-06 DOD Approved : -- <br /> Price Code ; A SCC Approved : -- <br /> Type: ulstd <br /> SCOPE TABLE OF CONTENTS <br /> 1 Scope <br /> 1 . 1 These requirements cover primary, secondary, and coaxial types of flexible connector pipes intended <br /> for short length transfer and containment of the specific liquid fuels (or vapors thereof) identified in this <br /> standard , at commercial ( public) or fleet (private) automotive motor vehicle fueling stations or similar fuel <br /> dispensing applications, and piping systems for fuel supply of generators , burners or similar equipment, <br /> 1 .2 Connector pipes may be metallic, nonmetallic, or composite, but are limited to maximum 12 ft (3 .65 <br /> m) lengths in nominal sizes up to 4 Inches ( 102 mm ) as flexible transition components within fuel <br /> dispensing and/or vapor recovery piping systems, typically intended for use in the following automotive <br /> fueling station applications : <br /> a ) Underground use (below surface but accessible such as within chase piping ) when <br /> connected to underground tanks or underground pipes with expected exposures to soil , <br /> water, and soil fluids ; <br /> P � <br /> https.//standardscatalog,tA .com/standards/en/standard 2039 1 <br />