UL10B and UL10C are important test standards for fire-rated door systems. Both evaluate the fire resistance of doors by simulating fire conditions, but the test objects and methods differ. UL10B, short for ''UL 10B Fire Test of Door Assemblies'', primarily tests the fire resistance of door system structures.

UL10C, short for "UL 10C Standard for Positive Pressure Fire Tests of Door Assemblies", focuses on positive pressure fire testing of door assemblies. The test report must clearly specify the fire resistance duration (e.g., 20 minutes, 30 minutes, 60 minutes, etc.) and include furnace temperature measurements, unexposed surface temperatures, and equipment performance records.

UL10B and UL10C pass rigorous high-temperature, pressure, and water flow tests to ensure fire doors effectively block flames and smoke during a fire, providing a critical safeguard for building safety. Companies must select the appropriate standard based on their product type and obtain certification through material optimization, structural design, and compliance testing to meet market fire safety requirements.

The American Standard fire door water impact test is a high-pressure water jet test conducted after the fire resistance test. Key requirements include pressure, duration, speed of movement, and evaluation criteria. Testing timing: Immediately after the specified fire resistance test duration (e.g., 30 minutes, 60 minutes, etc.)

Main standards: UL10B/C and NFPA252 are the core standards for American Standard fire door testing. UL10C has higher water hammer pressure requirements (e.g., 310 kPa for a 3-hour fire-resistant door).

Differences from other standards: Compared to the European standard EN1634-1, which emphasizes thermal insulation, the American Standard places greater emphasis on structural integrity after water impact.

UL 1784, the full name of which is 《Standard for Safety Air Leakage Tests of Door Assemblies and Other Opening Protectives》, is a safety standard for air leakage testing of door assemblies and other opening protective devices.

This standard was developed by Underwriters Laboratories (UL) of the United States to evaluate the air sealing performance of devices such as fire doors under specific conditions to ensure their effective control of air leakage at building openings.

The practical application value of UL 1784 testing

Fire prevention and control function: By controlling air leakage, the diffusion rate of fire smoke in different areas is reduced, which buys time for personnel evacuation and fire rescue.

ASTM E90 and ASTM E413 are two key standardized test methods in the field of building acoustics, commonly used to evaluate the sound insulation performance of building materials and components. They are often used in conjunction to provide measurement data and a rating system, respectively.

ASTM E90 (Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements) is a standard method for measuring the airborne sound insulation capabilities of building components (such as walls, floors, doors, windows, etc.) under laboratory conditions.

ASTM E413 (Classification for Rating Sound Insulation) does not perform direct measurements, but rather provides calculation rules for single-number ratings for various acoustic test methods, including the data generated by ASTM E90.

EN1634-1 is a EN standard for fire resistance testing of fire-resistant doors, windows, and fire-resisting partitions.This standard evaluates three key indicators of products: fire resistance limit, heat insulation performance and sealing performance by simulating a fire environment, providing a normative basis for building fire safety.

Fire resistance is rated in minutes. Common grades include EI30 (30 minutes), EI60 (60 minutes), EI120 (120 minutes), etc., which represent how long the product maintains structural integrity and thermal insulation capabilities in a fire.

After starting the test, the temperature changes, smoke diffusion and flame spread of the sample are monitored in real time.

The focus is on evaluating integrity (preventing flame penetration) and thermal insulation (limiting heat transfer). Some scenarios require smoke control testing in combination with the EN1634-3 standard.

British standard fire resistance and thermal insulation testing is mainly based on the BS476 standard series, especially BS476-PART:22, which is used to evaluate the performance of building materials and structures under fire conditions.

These tests are designed to ensure that building components can maintain a certain level of thermal insulation during a fire, thereby protecting people and reducing property damage.

BS476-22 describes fire test methods for building materials and structures, including testing samples for load-bearing capacity, integrity, and thermal insulation under conditions of high temperature and pressure. During the test, samples are exposed to high temperatures to assess their performance over a specified period of time.