Ul1856 Summary of Requirements

September 16, 2013

UL1856 SUMMARY OF REQUIREMENTS

The following is a brief summary of the new and revised sections in the Outline of Investigation for Underground Fuel Tank Internal Retrofit Systems, UL1856, which has a future Effective Date of June 14, 2017, and the action that may be required to determine compliance. The Listing categories for EGAY Underground Tank Lining Systems and EGSJ Underground Tank Upgrade Systems, and only Recognized EGVV2 Tank Accessory Components & Materials used in the construction of these currently Listed Systems are affected by the published requirements. Please note other EGVV2 component & material types do not require a review and recertification.

UL1856 Section General Revision Summary and Impact Outline Title UL1856 Title “Outline of Investigation for Underground Fuel Tank Internal Retrofit Systems” was revised to reflect Scope changes for different system types and specific use applications (see Scope). UL Listing Marks Listing Marks for EGAY and EGSJ will be revised to reflect the Scope changes, and will be consolidated under EGAF after compliance with the new requirements. Some EGVV2 Recognition Marks will also require revisions.

The old EGAY & EGSJ Marks using existing terms for system types and 3 fuel rating options will either be discontinued on the effective date, or will be transitioned to the new EGAF Marks using revised terms for systems types and consolidated automotive fuel rating on or before the effective date.

Similarly, current EGVV2 Recognition Marks for affected EGAY & EGSJ component materials will require deletion of old system terms and ratings by the effective date, or will be revised to reflect the new EGAF system terms and ratings with UL1856 reference on or before the effective date.

In addition, use of new EGAF Listing and Engineering Marks in “Combination” type labels will be required after compliance with the new & revised requirements. Also see “Markings” for required Engineering Mark revisions. Note this does not affect the revised EGVV2 Recognition Mark.

The above change will require Listees to transition Listing & Engineering Mark(s) during the Industry File Review (IFR), which should be coordinated through the CAS engineer handling your IFR project. Scope The new & revised Scope changes reflects addition of a new retrofit system type, consolidation of flammable & combustible liquid types covered for specific applications, and general clarifications of intended use parameters, code references, fuel types and other basic product information. Key changes are:

* Coverage of nonmetal Lining, Upgrade and Structural type Retrofit Systems for field installation inside of existing underground fueling system tanks. * Revised use in UL58, UL1746, UL1316 host tanks for 5 commonly dispensed automotive diesel & gasoline fuels w/wo specific bio blends per ASTM Specs.

Therefore, the above changes will require a re-evaluation of currently Listed products within the revised types covered and use parameters, including material compatibility with new test fuels. In addition, Report revisions are also necessary to update these product type, rating and application clarifications by the effective date. Glossary The new & revised glossary definitions were necessary to clarify and support the terms used for each system types, containment types, fuel ratings, rating options and other common terms used in the Outline for consistent interpretation.

These glossary changes will not require a re-evaluation of currently Listed products. However, glossary terms may need to be revised in certification documents for consistency, so Report review & revisions are necessary by the effective date. Subject: 1856 Page 2 of 3 September 16, 2013

UL1856 Section General Revision Summary and Impact General The new & revised general construction requirements clarify basic containment Construction and structural parameters which each retrofit systems is designed for, and Requirements intended host tank types, dimensional ranges, repair options, and minimum installation preparations.

General construction requirements were also identified for minimum system thicknesses, host tank bonding, interstitial spaces, manways, fittings and compartments.

Therefore, the above changes will require a re-evaluation of currently Listed products for construction compliance, with Report revisions necessary to document critical construction items for continued compliance. General The new & revised general performance requirements reflect overall test Performance changes that more accurately simulate expected system installation, Requirements burial/use conditions, and fuel compatibility for each type. General performance requirements were also identified for worst case sample selection, pre-installation preparations, installation, and post installation material/leakage tests.

Therefore, the above changes will require a re-evaluation of currently Listed products for compliance with the new and revised performance requirements. The test program will be determined after assessment of product changes and previous test samples, methods and results. Burial Tests The new & revised burial tests provide information on general sample selection, test pit preparations, special sample features, test sequence and equipment parameters, and other details to conduct each burial test.

The torque and bending tests required for new or replacement fittings clarifies test method and pass/fail values with existing UL tank requirements.

The interstitial strength test for secondary systems simulates interstitial pressure & vacuum forces during leak testing/monitoring, and clarifies method options & pass/fail values, based on existing UL tank requirements.

The saturated soil test for all systems simulates external saturated soil loads during floods and clarifies method options & pass/fail values, based on existing UL tank requirements.

The interstitial communication test for secondary systems measures the tank leak detection rate and clarifies method options and pass/fail values, based on existing UL tank requirements.

Therefore, these and other changes in the specific burial tests will require at least a review of the previous test samples, method and results to determine if retesting and/or Report revisions are necessary. Subject: 1856 Page 3 of 3 September 16, 2013

UL1856 Section General Revision Summary and Impact The new & revised burial tests provide information on general sample Compatibility selection, bar & plaque preparations, special sample options, applicable material tests, and other details to conduct each compatibility test. Tests The physical property test table identifies the specific physical property test for each system type, material type and pass/fail criteria for as- received and exposed samples.

The visual exam test identifies sample size, type, exposures, and non- compliant damage.

The bond strength test evaluates host tank/system adhesion per ASTM D4541 and identifies several pass/fail options.

The flexural strength test evaluates thermoset system strength per ASTM D790, and identifies sample & calculation details.

The tensile strength test evaluates thermoplastic system strength per ASTM D638, and identifies sample & calculation details.

The sample exposure table identifies the new aggressive flammable and combustible test fuels, and revised test time/temperature representative of the expected use and fuel ratings.

Therefore, these changes in test methods, test fuels, exposure parameters and pass/fail criteria are expected to result in retesting of all currently listed products, and Report revisions. Installation and This section contains new and revised requirements for installers to follow Production Tests manufacturer instructions for conducting host tank tests, material analytical tests and system leakage tests on each retrofitted tank.

Therefore, a review of each manufacturer’s installation instructions is necessary to determine compliance, which may result in revisions to update the FUS Procedure. Markings This section contains new and revised general marking requirements for methods and content for specific system types, ratings, and other engineering markings that will require a review of currently Listed products to determine compliance, which may result in revisions to update the FUS Procedure. Instructions This section contains new and revised instruction requirements for methods and content for specific items of intended system use, tank selection and preparation, and system installation and testing that will require a review of currently Listed products for compliance, which may result in revisions to update the FUS Procedure. Appendix A Appendix A provides formulation and specifications details for the flammable (gasoline/alcohol blends) and combustible (diesel/biodiesel) aggressive test fuels used for material compatibility. Appendix B Appendix B provides recommendations for preparation of bond strength samples and proper adhesion of the pull-off disk to achieve a higher number of cohesive failures to analyze.