What is the single item burning test?

The Single Burning Item (SBI) test apparatus is a specialized equipment used to assess the fire performance of building materials under controlled conditions. 

Structure:

The SBI test apparatus typically consists of the following components:

1.Test Chamber: A controlled environment where the test specimen and the ignition source are placed. It ensures standard testing conditions throughout the experiment.

2.Sample Holder: Also known as the specimen holder, this is a platform where the test specimen is mounted for exposure to the heat and flames generated by the burning item.

3.Ignition Source: The standardized burning item that simulates a fire scenario. It is used to initiate the combustion process and apply heat to the test specimen.

4.Data Acquisition System (DAS):A system for collecting and analyzing data during the test, including temperature measurements, smoke production rates, and flame spread characteristics.

Test Procedure:

1.Preparation: The test specimen, usually a small building material sample, is mounted on the sample holder according to standardized procedures.

2.Ignition: The ignition source is applied to the test specimen, initiating the combustion process. The specimen's behavior under exposure to heat and flames is observed and recorded.

3.Data Collection: Throughout the test, various parameters are measured and recorded by the data acquisition system, including temperature profiles, flame spread rates, and smoke production levels.

Test Parameters:

Key parameters assessed during the SBI test include:

Fire Propagation Index (FPI): This measures the rate of flame spread along the surface of the test specimen.

Heat Release Rate (HRR): The amount of heat released per unit time during the combustion of the test specimen, indicating its flammability.

Total Heat Release (THR): The total amount of heat released during the test indicates the material's combustibility.

Standards and Regulations:

The SBI test method is often referenced in building codes, regulations, and standards related to fire safety in construction, such as EN 13823 and ISO 11925-2. These standards specify test procedures, acceptance criteria, and performance classifications for building materials based on their performance in the SBI test.

Please find below the detailed testing method for SBI

1. Scope of application:

1.1 Test method suitable for determining the fire response properties of building materials or products (excluding floor coverings and products specified in EC Decision 2000/147/EC) in the single burning test (SBI).

2. Comply with standards:

2.1 Comply with EN 13823:2002 Reaction of building products to fire. Test method for individual combustion of building products excluding flooring materials.

2.2 Comply with EN 13823:2010 Fire reaction of building products. Single combustion test method for building products excluding flooring materials.

3. Main features:

3.1 Maintenance is convenient and fast. The replacement of spare parts in the later period is at least 50%~70% lower than that of FTT, so there will be no trouble in maintenance. 

The instrument has a long service life and low operating costs.

3.2 Use integrated control cabinet.

3.3 Using heptane calibration, the heat release (THR) value per KG is 4456MJ/KG±222.8MJ/KG; the flow rate distribution factor Kt,v is very stable after repeated measurements. 

The instrument has good accuracy, high precision, stability and reliability.

3.4 Equip with corresponding auxiliary equipment and consumables to ensure the normal operation of the instrument.

3.5 Provide product printing color samples and detailed equipment instructions

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