Classification
DR255R Thermal radiant heat Protection Performance Tester
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Pilling& Snaaging testing instrument
DR255R Thermal radiant heat Protection Performance Tester
Thermal radiant heat Protection Performance Tester
Product Description
【Scope of Application】
Used for testing the fabrics used in flame-retardant protective clothing and heat-insulating clothing. It measures the heat insulation performance of these fabrics when exposed to moderate-intensity radiation for a short period of time or to high-intensity radiation for an even shorter period of time (Radiation Heat Protection Test, RPP).
【Related Standards】
GB 38453-2019 "Protective Clothing - Thermal Insulation Clothing"
ISO 6942-2022 "Protective Clothing - Thermal and Fire Protection - Test Methods: Evaluation of Materials and Components Exposed to Radiant Heat Source" etc.
【Instrument Parameters】
1. The radiation heat source consists of 6 SiC heating tubes:
Length (356 ± 2) mm; Heating zone length is (178 ± 2) mm; Diameter (7.9 ± 0.1) mm;
Resistance is (3.6 ± 0.36) Ω at 1070℃;
2. Thermal flux range:
10 - 40 kW/m² adjustable (national standard requires 20 kW/m²);
3. Sample size: 230 mm × 80 mm;
4. Sample holder: Fixed on a 10 mm aluminum block with 2 mm stainless steel plate, and applying 2 N force to the sample;
5. Copper calorimeter: Pure copper specification 50.3 mm × 50 mm × 1.6 mm, mass 35.9g - 36g, bent along the long side into a 130 mm radius, chord length 50 mm arc; Backside installs a nichrome alloy thermocouple, wire diameter ≤ 0.26 mm; Measurement range 0 - 300 degrees; Resolution 0.1℃; Accuracy 0.5%;
6. Copper calorimeter insulation plate; 90 mm × 90 mm × 25 mm, made according to B.2.3 in GB38453 national standard, material density: (750 ± 50) kg/m³, thermal conductivity: (0.18 ± 0.018) W/(mK).
7. Timing range: 0 - 9999.9 s, resolution 0.1 s; Accuracy: Display value 0.1%
8. Computer connection, automatic data acquisition, acquisition frequency ≥ 10 Hz, including heat flow data software;
9. Computer display and processing, with real-time curves, result printing;
10. Power: AC 220V ± 10% 50Hz Power: ≤ 9 kW;
11. Dimensions: (1350 × 770 × 630) mm
12. Weight: Approximately 100 kg.
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