LFY-248 Liquid Resistance Efficiency Tester for Protective Clothing

Main purpose

Used to measure the liquid repellency efficiency of protective clothing materials.
Working principle 
Allow the chemical test solution to flow over the surface of the sample, check whether the sample is retained or permeated, and calculate the acid rejection efficiency index. 
Technical Specifications
1. Semi-cylindrical hard transparent small groove: Inner diameter (125 ± 5) mm, length (300 ± 2) mm, inclined at 45° 
2. Syringe: Volume (10 ± 0.5) cm³, Needle hole diameter (0.8 ± 0.02) mm 
3. Weight of the hard cover: (140 ± 7) g 
4. Small beaker: Capacity of 50 mL 
5. Distance between the lower end of the syringe needle and the sample: (100 ± 2) mm 
6. Sample size: (360 ± 2) mm × (235 ± 5) mm 
7. Weight: 14kg 
Applicable Standards 
BS EN ISO 6530-2005 Protective clothing — Protection against liquid chemicals — Test method for resistance of materials to penetration by liquids

GB 24539-2025 Protective Clothing - Chemical Protective Clothing, Appendix I 
GB 24536-2025 Chemical Protective Clothing for Protective Clothing Selection, Use and Maintenance

BS EN 14325:2018 Chemical protective clothing. Test methods and performance classification for the joint connections and assembly of chemical protective clothing materials (liquid repulsion and anti-liquid permeability)