LFY-643 contact heat resistance test device
The main purpose
It is used to test the resistance to contact heat of welders' gloves that protect hands and wrists during welding and related operations.
Instrument characteristics
1. It has a heating body that can withstand temperatures up to 500℃, and the temperature is controllable;
2. The special calorimeter meets the test accuracy requirements;
3. It can digitally display the heating body temperature, calorimeter temperature, and critical time;
4. The contact speed is adjustable.
Technical parameter
1. The contact surface diameter of the heating body: (25.2±0.05) mm;
2. The diameter of the calorimeter test surface: (25±0.05) mm;
3. Contact force during measurement: (49±0.5)N;
4. Critical time timer: 0-99.99 seconds, accuracy: ±0.01 seconds;
5. Contact speed: (5.0±0.2) mm/s;
6. Sample size: 80mm in diameter.
Applicable standards (for different standards, different accessories are required)
GB 38453-2019 Protective clothing-Protective clothing against heat, 5.19, Appendix C
FZ/T 73040-2010 Protective gloves for working in the hot environment
AQ 6103-2007 Protective gloves for welders Appendix E Contact heat resistance test method
EN 702 Protective clothing-Protection against heat and flame-Test method-Determination of the contact heat transmission through protective clothing or its materials
EN 407 Protective gloves against thermal risks (heat and/or fire)
EN 12477 Protective gloves for welders