ss 332:2018+a1:2022 fire-resistance of building materials and elements doors and windows (singapore standards)
SS 332:2018+A1:2022 Fire Resistance Test of Windows and Doors (Singapore Standard).
SS332 specifies the requirements for the construction and installation of fire doors, which are used to protect openings in walls and partition walls to prevent fire from passing through. Nanjing Ruidu fire retardant testing component fire resistance testing.
Applies to 0Transverse panel of a fire door for more than 5 hours, where the panel is contained within the door frame and forms part of the door group. Panels above doors that are not contained within the door frame are considered part of the wall and therefore should comply with the stability, integrity, and insulation requirements set forth in the requirements of applicable laws and regulations. The transverse frame inside the door frame can be permanently fixed to the side members of the door frame, or it can be removed by mechanical fixation.
Not applicable to elevator landing doors.
Floor covering material that passes through fire door openings is not included.
The fire resistance of a fire door should be judged from one or more of the following aspects.
Loss of stability: The component loses its support ability or anti-deformation ability during the test, and the parameters to determine the loss of stability of the specimen are the amount of deformation and the deformation rate.
Loss of integrity: The specimen is considered to have lost integrity if any of the following conditions occur.
The cotton pad was set on fire.
A 6mm diameter crevice probe can glide through a crack and glide up to 150mm, or a 25mm diameter crevice probe can penetrate completely.
Flames appear on the backfire side and last for more than 10s.
Loss of thermal insulation: If the temperature rise of the temperature of the backfire surface of the specimen exceeds any of the following limits, the specimen is considered to have lost thermal insulation.
The average temperature rise exceeds the initial average temperature by 140 °C.
The temperature rise at any point exceeds the initial temperature (including moving thermocouples)180 (initial temperature refers to the initial average temperature of the backfire surface at the beginning of the test).
While fire doors often look like regular doorways, they are designed with highly durable materials and special features to effectively resist fire and smoke penetration. The most common materials for fire doors include steel, wood, glass, vermiculite, and drywall. Whenever a fire breaks out, installing fire doors in your home, office, or business will help limit and delay the spread of fire and smoke to parts of the building.
Fire doors prevent flames and smoke from spreading rapidly within the house, providing occupants and responders with time to evacuate safely and quickly. This will prevent the risk of injuries and other accidents in the event of a fire. In addition, these doors can also help reduce the degree of damage to the property and assets within. Considering these benefits of fire doors, they are undoubtedly a valuable investment to better protect security from the threat of fire.
3-hour fire doors are usually made of metals such as steel and provide additional protection, allowing them to withstand very high temperatures and smoke for long periods of time. They are suitable for walls with a four-hour fire rating and are used to separate various fire safety areas on a building. 3-hour fire doors are more resistant to fire and smoke, which makes them an excellent choice for valuable equipment such as high-risk areas and industrial spaces.
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