LFY-228C Anti chemical liquid pressure penetration performance tester
The main purpose
It is suitable for the ability of chemical protective clothing and Protective gloves f for firefighters to resist the penetration of chemical liquids at a specific time and a specific pressure, and to check the penetration of liquids on materials.
Technical index
1. The instrument uses an air source that can provide (13.8±1.38) kPa air pressure to continuously pressurize the sample without being restricted by the space of the test site;
2. The instrument has a pressure gauge to display the pressurization pressure, the pressurization pressure is adjustable, and the pressure adjustment rate is less than 3.5 kPa/s;
3. Use pressurized medium: compressed air;
4. Special stainless steel test device and discharge valve, suitable for 40% sodium hydroxide at 20°C, 36% hydrochloric acid at 20°C, 37% sulfuric acid at 20°C, 50% toluene, 50% isooctane;
5. The instrument has a clamp that can produce 13.6N·m torque;
6. Technical pressure point: 0kPa; 13.8kPa;
7. The digital display timer is adjustable, with an accuracy of ±1 second;
8. Sample size: 75mm×75mm;
9. Testing environment: temperature (20±2)℃, relative humidity 30%RH~80%RH;
10. Power supply: AC220V, 50Hz.
Applicable standards
ASTM F 1670-2008 Test Method for Resistance of Protective Fabrics to Penetration of Synthetic Blood
XF 7-2004 Fire-fighting gloves Chemical resistance test method
ASTM F903-2017 Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Liquids
GB 24539-2021 Protective clothing—Chemical protective clothing, Appendix F