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Fire Protection Services

At the end of the 19th century , cities across the U.S. were plagued by a rash of fatal fires caused by faulty electrical equipment and wiring. On October 8, 1871, the “Great Chicago Fire” resulted in more than 300 deaths, 90,000 people homeless, and property loss of US$200 million in only two days.

 

In 1894, to investigate and help eliminate the causes of the fires, William H. Merrill established the Underwriters Electrical Bureau. Manned by two staff members and using testing equipment worth just US$350, the fledging bureau released its first test report on March 24.

 

In 1901, the bureau that Merrill founded was incorporated as Underwriters Laboratories. That was also the year it built a test chamber to evaluate the fire resistance of doors and windows. In 1903, UL conducted the "Test for the Fire-Resistance of Doors and Windows” and published its very first test standard, entitled “UL10A for Tin Clad Fire Doors”. To date, UL has accumulated more than a century of expertise in fire protection testing.

UL's Fire Protection Services at a Glance

The concept of fire safety and prevention is built on the four core measures of “product fire safety”, “fire resistance”, “fire suppression” and “signal and alarm system”. It is based on this fire safety and prevention concept that UL provides fire testing and certification services for thousands of products—including home electrical appliances, information technology equipment, heaters, fuses, electronic control equipment, wire and cable, fire-resistive building products, smoke alarms and carbon monoxide alarms, fire extinguishers, automatic sprinkler systems, life jackets and buoys, and bullet-proof glass.

  • Reducing the fire danger of electrical products by testing on the fire enclosures, and specifying the safety requirements under abnormal and short-circuit operation.
  • Testing of combustible materials for controlling the spread of a fire.
  • Evaluating the performance of smoke and heat detection and alarm systems for ensuring their timely alarming function.
  • Testing the fire suppression function of sprinkling systems, and the fire resistance function of building materials.

 

The above preventive measures, combining the fire suppression efforts of the firefighting crew through the use of extinguishing systems and other safety equipment, effectively control the spread of a fire and minimize the loss of lives and properties.

UL's Fire Protection Division

UL offers a comprehensive scope of fire protection testing and certification services, ranging from fire-resistive construction, fire extinguishing equipment, fire extinguishers, to personal protective equipment. UL's Fire Protection Division offers conformity assessment services in the following five areas:

UL tests and certifies building structures and openings, which cover architectural assemblies (e.g. pillars, beams, floor slabs, and roofing material), curtain walls, fire doors and fire windows, safes and record protection equipment, fire-resistive gates, fire-resistive air ducts, through-penetration firestop systems and joint systems. Table 1 shows the products and the related safety standards

Fire Resistance and Containment Systems

Fire Suppression System

Building Products and Systems

Communications Systems

Other Performance Evaluation and Materials Testing

Fire Resistance and Containment Systems

UL tests and certifies building structures and openings, which cover architectural assemblies (e.g. pillars, beams, floor slabs, and roofing material), curtain walls, fire doors and fire windows, safes and record protection equipment, fire-resistive gates, fire-resistive air ducts, through-penetration firestop systems and joint systems. Table 1 shows the products and the related safety standards.

Items

Standards

Fire-resistive assemblies

UL 263 (ASTM E119, NFPA 251, UBC 7-1), ISO 834, UL 1709

Fire door

ANSI/ UL10C, ANSI/ UL10B, UL 1784, NFPA 252, UBC 7-2 (1997), ASTM E2074

Fire window

UL 9, UBC 7-4(1997), ASTM E2010

Through-penetration firestop systems

UL 1479 (ASTM E814)

Joint system

UL 2079, ASTM E1966

Safes & record protection equipment

UL 72

Wrapping systems

ASTM E1725, UL 2221, ICBO ES AC 101, SBCCI, ISO 6944

 

Fire Suppression System

UL tests and certifies water-type and other fire extinguishing systems, including sprinklers, extinguishing system units, valves, sprinkler piping systems, fire main equipment, fire hydrants, fire pumps, and hand-held fire extinguishers. Table 2 shows the products and the related safety standards.

Extinguishing system units

Clean agent: UL 2127, UL 2166, NFPA2001

Carbon dioxide: UL 2127, UL 2166, NFPA 12

Dry chemical: UL 1254, NFPA 17

Low expansion foam and equipment: UL 162, NFPA 11, NFPA 16, NFPA 20, NFPA 409

High expansion foam and equipment: UL 139, UL162, NFPA 11A

Wet chemical solution: UL 300, UL 1254, NFPA 17A

Fire extinguishers

Fire testing and rating: UL 711

Foam fire extinguishers: UL 8

Carbon dioxide fire extinguishers: UL 154

Dry chemical fire extinguishers: UL 299

Gallon stored-pressure, water type fire extinguishers: UL 626-2-1/2

Halocarbon clean agent fire extinguishers: UL 2129

Fire main equipment

UL 246, Subject 327, UL 789, UL 1285,UL 1821

Fire pumps & engines

UL 448, UL 1247

Residential sprinklers

UL 1626, ISO 6182-10

Sprinkler piping systems

UL 203, UL 213, Subject 852, UL 1474, UL 1821

Valves for fire protection systems

UL 193, UL 258, UL 260, UL 262, UL 312, UL 1091

Water mist nozzle

UL 2167, IMO 800(19)

 

Building Products and Systems

UL's fire protection services cover building products that range from roofing materials, roofing coverings, air ducts, speakers, acoustic insulation materials for roofing, to interior finish materials like wallpaper, wall coverings, carpets and curtain. Table 3 exhibits the products and the related safety standards.

Items

Standards

Air duct, air connectors & closure system

UL 181, UL 181A, UL 181B

Combustible materials for use in air-handling spaces (Plenums)

UL 723 (ASTM E84, NFPA255), UL 2043

Roofing materials

Fire resistance characteristics: UL 790, UL 1256

Wind resistance: UL 580, UL 18976, UL 997

Material/product physical performance properties: UL 55A, UL 2218, ASTM and other nationally recognized Standards

Surface

burning characteristics of interior finish materials & systems

Surface burning characteristics: UL 723

Room/building corner tests: UL 1715 (UBC 26-3), ISO 9705 (NFPA 286), NFPA 265 (UBC 8-2), UL1040

Ignition properties: NFPA 259, ASTM D1929

Intermediate-scale multistory test: NFPA 285 (UBC 26-9)

 

Communications Systems

UL provides testing and certification services for indoor wiring cables, cable tray and its protection system. The table below shows the related safety standards. Installation of these communications systems should follow the United States' National Electrical Code NEC/ NFPA70 and other related regulations.

 

Items

Standards

Telecommunications equipment testing

Bellcore GR-63 (NEBS)

Materials ignitability, wire & cable—ANSI T1.307

Fire propagation—ANSI T1.319

Routing assemblies—UL 2024A

Wire & cable flammability testing

Plenum applications–NFPA 262

Riser application–UL1666

Vertical tray applications–UL1685, CSA FT4, IEEE 383, IEEE 1202, JIS C 3521

IEC Test Methods–IEC 60332, Part 1 and Part 3, IEC 60754, Part 1 and Part 2, IEC 601034

Wire & Cable International Electrotechnical Commission (IEC) Flammability Testing

IEC 61034-1, IEC 61034-2, IEC 60754-1, IEC 60754-2, IEC 60332-1, IEC 60332-3-10, FIPEC Protocol

 

Other Performance Evaluation and Materials Testing

UL's Fire Protection Division also works closely with the public and private enterprises in various research and development projects. These projects cover:

  • Large-Scale Fire Research (100 by 100 ft movable ceiling)
  • Ignition, Smoke & Fire Effluent Testing (ASTM E136, ASTM D1929, ASTM E662, ISO 5659, NES 711, and NES 713)
  • Cone Calorimeter (ASTM E1354, ISO 5660, CAN/ ULC-S135, NFPA 271, and ASTM D5485)
  • Phase Doppler Particle Analyzer (PDPA, UL 2167, and IMO A19/ Resolution 800)
  • Mattress & Futon Testing (CAL TB 106, CAL TB 117, and CAL TB 603)
  • Material Analysis Performance Program (FTIR, TGA, DSC, DMA)

For over a century, UL has been actively contributing to fire protection testing. The UL Mark is widely recognized and accepted by contractors, building and fire inspectors, and other code authorities.

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