Protective clothing heat conduction tester
Category：Other
Introduction
Product Overview
The Protective Clothing Heat Conduction Tester is designed to evaluate the thermal protection performance of protective textiles and garments under combined convective and radiant heat exposure. By measuring the transmitted heat over time and comparing it to the Stoll curve, the tester determines the Thermal Protective Performance (TPP) of single-layer or multi-layer materials.
It is widely used in firefighter clothing, industrial protective wear, military and rescue gear, and other high-heat-resistance textiles. Note: Not suitable for non-flammable fabrics or materials prone to melting/dripping under high temperatures.
Application Fields
Firefighter turnout gear and helmets
Heat-resistant industrial protective clothing
Multi-layer thermal protective textiles
Research and development of flame-retardant fabrics
PPE quality control and certification labs
Fire rescue training material evaluation
Compliance Standards
The instrument meets national and international standards for thermal protection testing:
GB 8965.1-2009 Appendix A – Firefighter protective clothing
GA 10-2014 Appendix A – Protective clothing for firefighters
NFPA 1971-2017 – Standard on protective ensembles for structural firefighting
ISO 12749 – Protective clothing – evaluation of heat transmission
GB/T 38302-2019 – Thermal protective performance of textiles
Product Advantages
Computerized Control System
LabVIEW software integration with user-friendly interface
Real-time data acquisition at 20 samples/sec
Automatic Stoll curve intersection detection and TPP calculation
Intelligent temperature compensation for precise results
Automated Thermal Shield System
Water-cooled shielding mechanism
Response time ≤ 0.5 s for heat shield retraction
Precision Ignition System
High-voltage spark generator with safety interlock
38 mm diameter gas burner with adjustable air/fuel mixture
Automatic TPP Calculation
Integrates exposure time and total heat flux
Digital display of calculated Thermal Protective Performance values
Technical Specifications
| Specification | Details |
|---|---|
| Heat Sources | Radiant: 9×T-150 quartz lamps, 10–50 kW/cm² @127 mm Convective: Twin gas burners, 45° angle, 10–50 kW/cm² each Total heat flux: 83 ± 2 kW/cm² |
| Sensors | Copper calorimeter probe (Φ25 mm) ±0.1°C resolution Stoll curve intersection detection system |
| Data Acquisition | 20 Hz sampling rate up to 250°C Automatic TPP calculation via integrated software |
| Safety Features | High-voltage interlock system Water-cooled shield mechanism Emergency shutdown protocol |
| Chamber Dimensions | 800 × 500 × 550 mm |
| Instrument Footprint | 1200 × 800 × 1000 mm |
| Power Requirements | AC 220 V ±10%, 50 Hz, max 3 kW |
FAQ
1. What materials can be tested with this instrument?
It is suitable for single-layer and multi-layer protective textiles used in firefighter suits, industrial heat-resistant clothing, and other high-performance flame-retardant materials.
2. How is Thermal Protective Performance (TPP) measured?
The instrument exposes the sample to combined convective and radiant heat. The transmitted heat is recorded, and the TPP is calculated by intersecting the heat flux-time curve with the Stoll curve.
3. Does this tester meet international standards?
Yes. It complies with GB, GA, NFPA, ISO standards relevant to thermal protection performance testing.
4. How accurate is the system?
The copper calorimeter probe offers ±0.1°C resolution, with automated TPP calculation and intelligent temperature compensation to ensure high accuracy.
5. What safety measures are included?
The instrument includes a water-cooled thermal shield, high-voltage interlock, and emergency shutdown protocol to protect operators and equipment.
