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Foam Liquid ConcentratesView Listings Page Bottom

[Extinguishers and Extinguishing System Units] (Foam Extinguishing System

Units) Foam Liquid Concentrates

See General Information for Foam Extinguishing System Units

GENERAL

This category covers foam liquid concentrates, which include protein, fluoroprotein, film-forming fluoroprotein (FFFP), aqueous-film-forming foam (AFFF), or other synthetic-based materials.

Foam is generally produced by the addition of a foam liquid concentrate to water and mechanically mixing air into the foam solution. Some foam solutions may be discharged through equipment that does not mix air into the solution as indicated in the individual certifications.

Foam is suitable for use on fires involving ordinary hydrocarbon petroleum products, but may not be suitable for use on fires involving polar

solvent fuels. Concentrates investigated for use on polar solvent fuels are noted in the individual certifications.

Liquid concentrates may be stored in the original shipping containers or in pressure-proportioning tanks. Liquid concentrates are not intended to be stored at temperatures lower than those for which they have been certified or above 120°F. They should be stored in locations free of excessive moisture to avoid external corrosion of containers and other equipment.

The quality of foam produced is affected by proportioning and discharge equipment. The individual certifications of liquid concentrates reference all the equipment with which it may be used and the corresponding operating limitations, including foam concentrations.

There are two types of foam-discharge outlets:

Type II — Discharge devices that do not deliver foam gently onto the liquid surface but are designed to minimize submergence of the foam or agitation of the surface. Examples include foam chambers, subsurface injection equipment, or applying the foam off a backboard or the wall of a tank.

Type III — Discharge devices that deliver foam directly onto the liquid surface at an angle above the horizontal. Examples include hand-held nozzles or monitors.

Unless otherwise stated in the individual certifications, the type of discharge outlet certified with a foam is Type III.

Foam concentrates investigated with certified sprinklers and fixed spray-foam nozzles are intended to be installed in accordance with the

applicable requirements of ANSI/NFPA 11, "Low-, Medium-, and High-Expansion Foam," or ANSI/NFPA 16, "Installation of Foam-Water Sprinkler and Foam-Water Spray Systems," but in no case is the protected area per sprinkler to exceed 39.6 sq. m..

Foam extinguishing systems are intended to be designed, installed, tested, inspected, operated and maintained in accordance with the applicable requirements of ANSI/NFPA 11 and ANSI/NFPA 16.

Authorities Having Jurisdiction should be consulted before installation.

PRODUCT IDENTITY

The following product identity appears on the product:

Foam Liquid Concentrate

ADDITIONAL INFORMATION

For additional information, see Foam Extinguishing System Units (GEEZ), Extinguishers and Extinguishing System Units (FWFZ) and Fire Protection Equipment (AAFP).

REQUIREMENTS

The basic standard used to investigate products in this category is UL 162, "Foam Equipment and Liquid Concentrates."

UL MARK

The Certification Mark of UL on the product is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The Certification Mark for these products includes the UL symbol, the words "CERTIFIED" and "SAFETY," the geographic

identifier(s), and a file number.

Alternate UL Mark

The Listing Mark of UL on the product is the only method provided by UL to identify products manufactured under its Listing and Follow-Up

Service. The Listing Mark for these products includes the UL symbol (as illustrated in the Introduction of this Directory) together with the word "LISTED," a control number, and the product name "Foam Liquid Concentrate."

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UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the

manufacturer or any other party. UL shall not incur any obligation or liability for any loss, expense or damages, including incidental or consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Guide Information.

Last Updated on 2013-09-12

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The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured

under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL's Follow-Up Service. Always look for the Mark on the product.

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