|
NewsInformation Center
Home>News > > Vertical Flame Test Chamber Calibration Specifications

Vertical Flame Test Chamber Calibration Specifications

2025/09/19

Share: 

Share

Calibration Specifications

Vertical flame test chambers are used to test the combustion properties of materials and are widely used in fire protection, construction, aviation, and other fields. Regular calibration of vertical flame test chambers is crucial to ensure accurate test data and equipment stability. This article details the relevant specifications for vertical flame test chamber calibration, analyzing the key steps and technical requirements during the calibration process. This will help industry professionals understand and effectively implement these specifications, ensuring accurate and reliable test results.

Working Principle

The vertical flame test chamber simulates the combustion behavior of materials under specific conditions and evaluates their combustion performance by measuring parameters such as flame propagation speed and smoke density. The chamber is equipped with temperature sensors, airflow control devices, and a combustion chamber to ensure a stable and controllable test environment.

 Vertical Flammability Test Chamber

Vertical Flame Test Chambers

Primarily used to measure the vertical flame spread properties of children's sleepwear, various textiles, and furniture filling materials. This device is suitable for evaluating the burning characteristics of various fabrics and their products, specifically meeting the bottom edge burning performance test requirements for textiles specified in the GB5455-2014 standard. It is a key tool in quality control, product development, and compliance certification.

Applications

This test chamber is widely used in the following fields:

Transportation Industry

Automotive Interior Materials: Flame retardancy testing of automotive textiles such as seat fabrics, headliners, and carpets

Rail Transportation: Fire safety certification of seat fabrics and interior materials for high-speed trains and EMUs

Aviation and Shipping: Combustion performance evaluation of aircraft cabin and ship cabin interior materials

Building Decoration Industry

Architectural Textiles: Fire rating assessment of curtains, wall coverings, and decorative fabrics

Thermal Insulation Materials: Flame retardancy testing of various building insulation materials

Indoor Soft Furnishings: Fire safety testing of textiles used in furniture such as sofas and bedding

Protective Equipment Industry

Industrial Protective Clothing: Flame retardancy verification of protective clothing used in the petrochemical, power, and other industries

Firefighting Equipment: Combustion performance testing of specialized equipment such as firefighting protective clothing and fire blankets

Military Supplies: Fire performance evaluation of specialized textiles used in military tents and protective equipment

Electrical and Electronics Field

Insulation Materials: Flame Retardancy Rating Assessment of Wire and Cable Insulation and Sheathing Materials

Electronic Equipment Housings: Fire Performance Testing of Plastic Housings and Decorative Materials

New Material Research and Development

Research on the Flame Retardancy of Composite Materials

Efficacy Verification of Nano-Flame Retardant Materials

Performance Evaluation of Environmentally Friendly Flame Retardants

Product Features

Optimized Gas Piping System Design

The compact piping layout minimizes footprint and allows for easy equipment mobility, greatly facilitating laboratory space planning.

Effective Ventilation System

Exhaust ports at the bottom and top of the test chamber ensure good ventilation during testing, stable flame combustion, and highly reproducible test results.

Intelligent Timing and Data Display

Equipped with a high-precision LED display, the device records and displays ignition time, afterburn time, and smolder time in real time, ensuring high testing efficiency and accurate and reliable data.

User-Friendly Design

Constructed of stainless steel, the device features a large glass observation window for real-time observation of the test process. The robust and durable structure of the device requires minimal maintenance.

Professional Testing Environment

The specially designed test chamber ensures consistent and accurate testing conditions, providing reliable test results.

Compliance with Standards

This equipment meets several important international testing standards:

ASTM D6413 (Vertical Flame Test Standard for Textiles)

CALIF TB117 (Flammability Requirements for Furniture Filling Materials)

DOC-FF 3/71 (Standard for the Flammability of Children's Sleepwear)

16 CFR Parts 1615/1616 (Flammability Regulations for Children's Sleepwear)

FTMS 191-5903 (Federal Test Method Standard)

CPAI 84 (Flammability Specification for Camping Tent Fabrics)

The Importance and Significance of Calibration

The purpose of calibration is to ensure that the test chamber provides accurate temperature, airflow, and combustion parameters during flame tests. Inaccurate equipment calibration can lead to unreliable test results, potentially impacting product safety certification and compliance with industry standards. Therefore, calibration of vertical flame test chambers is crucial and must be performed in strict accordance with specifications.

Calibration Process and Technical Requirements

Vertical combustion chamber calibration typically includes the following key steps:

Temperature Calibration: Use a high-precision thermometer or temperature sensor to measure the temperature at various locations within the chamber to ensure uniform temperature distribution and that the temperature control system's tolerances are within acceptable limits.

Airflow Calibration: Use an airflow meter to measure the airflow velocity within the combustion chamber to ensure that the airflow distribution meets standard requirements, thereby ensuring the accuracy of the combustion test.

Flame Propagation Velocity Testing: Use standard combustion materials to test the flame propagation velocity within the chamber to verify that the flame propagation velocity within the chamber is consistent with the standard value.

Smoke Density Testing: Use a smoke detector to monitor the smoke generated by combustion in real time and verify that the measurement results are consistent with standard requirements.

Each calibration step requires the use of certified standard equipment and tools and is performed under identical environmental conditions to ensure repeatable and accurate testing.

Calibration Frequency and Maintenance

To ensure the long-term stable operation of the vertical combustion chamber, calibration should be performed regularly, typically every six months or annually. For equipment subjected to high usage or operating in extreme environments, the calibration frequency may be reduced. Routine equipment maintenance is equally important. Regularly checking the instrument's functions, cleaning the airflow path, and inspecting the sensor's working condition can effectively extend the equipment's lifespan.

Standards and Specifications

Vertical combustion test chamber calibration must comply with relevant international and national standards, such as ISO 5660 and UL 94. These standards detail the performance requirements, calibration methods, and data recording methods for combustion test chambers. Adherence to these standards not only ensures the accuracy of test data but also helps companies achieve compliance in fire safety certification, quality inspection, and other processes.

Vertical combustion test chambers combine sophisticated manufacturing processes with specialized testing capabilities, meeting stringent international standards while providing a convenient and efficient user experience. Their excellent data accuracy and reliability make them indispensable testing equipment for textile laboratories, quality inspection agencies, and manufacturers.

Vertical combustion test chamber calibration is a critical step in ensuring test accuracy and equipment reliability. By strictly adhering to standardized calibration procedures, scheduling calibration frequencies, and performing regular maintenance, you can ensure long-term stable operation and accurate and reliable combustion performance testing of various materials. When performing calibration, professionals must use appropriate techniques and tools based on specific industry requirements and follow relevant specifications to ensure the scientific and authoritative test results.

Previous: Structure and use of shoe material heat resistance testing machine
 N e x t   : What Are the Standards for Color Fastness to Rubbing?