LFY-654 Welding Operator Protective Face Shield Thermal Penetration Resistance Test Instrument - Main Application

Main purpose 
This is used to test the heat penetration resistance of welding workers' protective face masks and protective films. At a high temperature of 650℃, the heat probe makes uniform contact with the mask material or protective film for 5 seconds, during which there is no penetration or opacity of the mask material. 
Technical Specifications

1. Size of the heat source body: 300mm in length ± 3mm, 6mm in diameter, with a flat bottom surface. 
2. Heating source temperature: (650 ± 20) °C. 
3. Welding worker's protective face mask 
(1) Length: For handheld and head-worn devices, it should be no less than 310mm. For the combination of safety helmet and face mask, it should be no less than 230mm. 
(2) Width: Not less than 210mm 
(3) Depth: Not less than 120mm 
(4) Observation window: The length and width dimensions should be no less than 90mm × 40mm. 
Applicable Standards 
GB/T 3609.1-2008 Occupational Eye and Face Protection - Welding Protection - Part 1: Welding Protective Equipment 
Key words

Welder's protective face shield thermal penetration performance tester, protective face shield thermal penetration performance tester, protective face shield thermal penetration performance testing instrument, welder's protective face shield thermal penetration performance testing instrument