SULLIVAN (SULLY) CURRAN P.E. EXECUTIVE DIRECTOR

24th National TANKS CONFERENCE Know Your Fiberglass (UST) Tanks and Piping

– Double-Wall UL 1316 Tanks and UL 971 Piping

– Other Applicable Fiberglass Standards

– Fiberglass Manufacturing Methods

– Manufacturing QA/QC: (Quality Control & Quality Assurance)

– Double-Wall Leak Detection

– Fiberglass Tanks

– Fiberglass Piping

– Summary & Questions

UL 1316 & UL 971 Standards

– UL 1316 tank standard established in 1981

– UL 971 pipe standard established in 1988

– Both are “performance standards”

– Manufactures have strict design and materials criteria they must follow

UL 1316 & UL 971 Standards

– Listing process includes long-term immersion testing for specific fuels

– E10, E15 and E85 are tested and listed for use

– UL label describes alcohol fuels listing

UL 1316 & UL 971 “Performance” Standards

– “Performance” Standards Differ from “Manufacturing” Standards – Products are put through a rigorous testing protocol

– ASME White Paper states:

“A Performance based standard states goals and objectives to be achieved and describes methods that can be used to demonstrate whether or not products and services meet the specified goals and objectives.”

By “contrast a prescriptive standard, which typically prescribes materials, design and construction methods, frequently without stating goals and objectives.”

20 Year Global Growth UL 1316

0

5

10

15

20

25

8 11 10

15 15 15 15

18

22 19

21 22 N

UMBER OF

MANUFACTURERS 20 Year History: 1992 - 2012

Global UL 1316 Listed Manufacturers

– Most international manufacturers are technology licensees of Institute members.

Other Corrosion Resistant Fiberglass Tank & Pipe Standards

Tanks – Petroleum Production: Crude Oil & Wastewater Piping – Crude Oil/Injection Wells: High Pressure (3,000 psi) Tanks – Chemical Plants: Process Pressure Vessels Piping – Chemical Plants & Petroleum Refining: “Lines” Tanks – Thermoset FRP Tanks Piping – Municipal Potable & Wastewater (e.g. Sewage) Tanks & Piping: – Potable Drinking Water Machine-Made Manufacturing Methods: – Centrifugal Casting with Chopped Glass – Filament Winding with Glass Strands

API ASME

AWWA NSF

ASTM

Fiberglass Materials

Thermosetting Resins - – Not to be confused with thermoplastic resins

– e.g. PVC pipe, household products – Two generic types: Epoxy and Polyester – Webster: “permanently rigid when heated or cured” – Resin selection based on specific application and extensive

corrosion guide database Glass Fiber Reinforcement - – Molten glass drawn from furnace into filaments – Used in a variety of forms: chop strand, fabric/woven

Fiberglass Materials

Centrifugal Casting Filament Winding

Fabrication Methods - – Materials are applied to molds in a number of ways,

including:

Mfgr. “Quality Control” Required by UL

– Material vendors also list their products with UL – Vendor material specifications tested by UL – Material specifications required with each vendor

shipment – Manufacturer Material Inspection

– Random material testing: confirm vendor specifications – Manufacturer In-process Inspections

– Fiberglass coupons laboratory tested by manufacturer – Coupon test results recorded for each tank or pipe

– Finished Product Inspection – Tanks and pipe inspected; results recorded by UL Label #

– Finished Product Testing – Tanks and pipe pressure tested and results recorded

Third-Party “Quality Assurance” UL 1316 Tanks & UL 971 Piping

– Second level of “Quality Control” by third-party UL – UL Conformity Assessment Services

– Perform product testing to determine if product meets specified goals and objectives

– UL Conformity Services Agreement – Goal: Verify manufacturers are producing products in accordance

with original test results – Field Service personnel inspect each manufacturing plant:

– Monthly, not Randomly, and Unannounced arrival dates – Confirms manufacturing procedure documented by UL – Material samples and/or fiberglass coupons selected to be

tested by UL laboratory – True “third” party oversight – Each tank or pipe is assigned a UL serial number

Double-Wall Leak Detection

Options – – Continuous Monitoring – hydrostatic

– Monitors primary and secondary walls in BOTH dry and wet hole conditions

– Provides tank tightness testing capabilities

– Institute member products are NWGLDE listed – Required for all new CA installs

– Vacuum is also an option, but rarely used

– Dry Interstice with Probe

– Probe installed to detect liquid entering the interstice

Double-Wall Leak Detection

Options (cont.) –

– Hydrostatic Notes:

– Majority of FRP tank owners choose continuous monitoring

– 50+ years' experience in ASTs (API 650 and 620)

– 25+ years' experience in FRP USTs

Double-Wall Fiberglass Piping Leak Prevention

Ambient Hydrostatic Pressure Hydrostatic

Double-Wall Fiberglass Tank Leak Prevention

Primary-Tank Leak in Wet Hole or Dry Hole

Secondary-Tank Leak in Dry Hole

Secondary-Tank Leak in Wet Hole

Summary Fiberglass Tanks & Piping

– 1992 to 2012: 20 year global manufacturing growth

– Standards tailored to corrosion-resistant applications

– Fiberglass Material Composition:

– Glass fibers embedded in thermosetting resin system

– UL 1316 & UL 971 are performance standards

– Quality Control: UL listed materials/mfg. process

– Quality Assurance: UL inspects facilities unannounced on a monthly basis

– Hydrostatic Leak Prevention: A proven track record with API and fiberglass tank and pipe owners

QUESTIONS?

Thank you for your Attention…..Any Questions?? Sully Curran