Scope of Application

【Operating Instructions】

Designed to meet the requirements of the test methods specified in the national standard GB 8965-2009 "Protective Clothing - Flame Retardant Protection," this instrument is used to determine the thermal protective performance of flame-retardant fabrics.It caters to the diverse testing needs of industries and institutions such as textile and apparel, petrochemicals, occupational safety, and quality supervision. It provides a scientific and reliable basis for the development of flame-retardant protective clothing, quality control during production, and performance verification during use.

Scope of Application
Designed to meet the requirements of the test methods specified in the national standard GB 8965-2009 "Protective Clothing - Flame Retardant Protection," this instrument is used to determine the thermal protective performance of flame-retardant fabrics.

It caters to the diverse testing needs of industries and institutions such as textile and apparel, petrochemicals, occupational safety, and quality supervision. It provides a scientific and reliable basis for the development of flame-retardant protective clothing, quality control during production, and performance verification during use.

Method Standards

• GB8965-2009

• NFPA 2112

• ISO17492

• ASTM F2703

Key Features

1. Simulation of Wearing Conditions: The flame-retardant specimen is placed horizontally at a specific distance from a convective/radiant mixed heat source. The exposure time is recorded when the transmitted heat equals the energy required to cause a second-degree burn on human tissue.

• Contact Mode: Simulates the protective clothing touching the body (specimen in direct contact with the sensor).

• Spacing Mode: Simulates an air gap between the clothing and the body (6.5mm spacing).

2. System Composition: Primarily composed of a PLC, heat source, copper calorimeter, digital display instrument, and system operating software.

• PLC (Programmable Logic Controller): Controls the coordinated actions of all components (heat source, heat shield, specimen holder, etc.) and communicates with the operating software to execute commands.

3. Heat Source: Provides the heat flux necessary to meet the test requirements.

4. Copper Calorimeter: A specialized calorimeter fabricated according to standard requirements, utilizing thermocouples for heat measurement.

5. Digital Display Instrument: Displays the temperature from the copper calorimeter thermocouples; the system reads the heat data from the instrument via RS485 communication.

6. Operating Software: Controls the testing process; plots test curves based on experimental data and compares them with the human second-degree burn tolerance curve to determine the time to burn and obtain the test results.

Technical Specifications

1. Heat Source Configuration: Comprises 1 set of radiant heat source and 2 convective heat sources.

• Radiant Source: Consists of 9 T-150 infrared quartz lamps.

• Convective Source: Consists of 2 Meker burners.

2. Heat Flux Range: ≤100 kW/m²

3. Copper Calorimeter Range: 0℃ ～ 100℃

4. Specimen Size: 150×150mm

5. Fuel Medium: Propane

6. Power Supply: AC220V/50Hz

• Power Consumption: ≤4.5kW