UL 10C Positive Pressure Fire Tests of Door Assemblies
UL 10C is a positive pressure test that evaluates fire door performance, specifically its ability to retain its secure assembly during the test. Fire doors are critical for the safety of personnel and property, as they can stop the spread of fire for several hours. To comply with codes and sell their products to end users, fire door manufacturers must meet certain requirements.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
UL 10C is used to assess the fire-resistance rating of swinging door assemblies subjected to positive-pressure fire conditions. The test procedure is used to determine whether a door assembly can resist fire passage and remain in place during controlled fire exposure and, if necessary, subsequent hose-stream testing.
UL 10C fire-resistance rating standard is commonly employed for fire-rated door assemblies in wall openings in buildings. The standard is applicable to swinging door and frame assemblies made from a variety of materials.
Scope, Applications, and Benefits
Scope
UL 10C evaluates the fire endurance of swinging door assemblies mounted in wall openings under positive pressure conditions. The test assesses whether the assembly can limit fire passage and maintain structural integrity during the specified fire exposure period.
UL 10C evaluates:
● Fire resistance of swinging door assemblies under positive pressure
● Integrity of door, frame, and hardware during fire exposure
● Resistance to the passage of flames and hot gases
● Performance of assemblies installed in wall openings
● Response of door assemblies to fire endurance and hose stream exposure
Applications
● Fire-rated swinging door assemblies
● Commercial and institutional building doors
● Steel, wood, and composite fire door systems
● Door frames, glazing, and hardware assemblies
● Building code compliance testing
● Fire safety evaluation for wall opening protectives
Benefits
● Provides standardized fire resistance evaluation of door assemblies
● Supports code compliance for fire-rated openings
● Helps assess the integrity of door and frame systems during fire
● Assists in selecting door assemblies for fire safety applications
● Enables comparison of fire performance between door systems
Test Process
Sample Preparation
The door assembly is mounted in a representative test wall with the required frame, hardware, and accessories.
1Fire Endurance Exposure
The mounted assembly is exposed to controlled fire conditions under positive pressure for the specified rating period.
2Hose Stream Application
After fire exposure, the specimen may be subjected to a hose stream test to assess resistance to impact, erosion, and thermal shock.
3Data Recording & Evaluation
The assembly is evaluated for integrity, opening protection performance, and compliance with the acceptance criteria.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | Swinging door and frame assemblies of various materials |
| Mounting Condition | Installed in a representative wall opening |
| Fire Exposure Condition | Positive pressure fire test |
| Post-Fire Evaluation | Hose stream test where applicable |
| Measured Outputs | Fire endurance and assembly integrity |
Instrumentation Used for Testing
- Calibrated fire resistance test furnace with positive pressure control system
- Pressure differential measurement and monitoring instrumentation
- Standardized time-temperature fire exposure curve control system
- Flame and hot gas passage observation and recording equipment
- Door assembly self-closing and latching performance monitoring system
- Data acquisition and test reporting system
Results and Deliverables
- Positive pressure fire exposure records, including furnace temperature and pressure differential data
- Flame and hot gas passage observations throughout the fire resistance test period
- Door assembly integrity and self-closing performance observations per UL 10C criteria
- Test compliance result assessed against the defined UL 10C fire resistance rating requirements
- UL 10C positive pressure fire test report for product approval, building code submissions, and regulatory authority review
Why Choose Infinita Lab for UL 10C?
Infinita Lab offers comprehensive UL 10C testing services, a Comprehensive lab network, project management, confidentiality, and rapid turnaround. Trust Infinita Lab for your material testing needs, Faster test results, cost savings, and reduced administrative workload.
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Frequently Asked Questions
UL 10C tests how well door assemblies resist fire when there is positive pressure. It checks if doors, frames, and hardware can stop flames and hot gases from passing through during standard fire tests.
Positive pressure mimics real fire situations where hot gases flow toward door openings. UL 10C makes sure door assemblies can resist flame spread and prevent hot gas leakage in realistic fire exposure conditions.
UL 10C tests complete door assemblies. This includes the door leaf, frame, glazing, seals, hinges, latches, and hardware. The goal is to assess their overall fire performance in positive pressure furnace conditions.
UL 10C is often necessary for fire-rated doors in commercial buildings, hospitals, schools, industrial facilities, and other places where building codes require tested fire door assemblies.
UL 10C tests how well door assemblies perform in a fire under controlled lab conditions. However, it doesn't fully capture all real fire situations. This includes cases with structural movement, smoke management systems, or unusual installation conditions.
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