The main purpose
Used to determine the liquid repellent efficiency of protective clothing materials.
Working principle
Flow the chemical test solution over the surface of the sample to check whether the sample is retained or penetrated, and calculate the acid rejection efficiency index.
Technical index
1. Semi-cylindrical hard transparent small groove: inner diameter (125±5) mm, length (300±2) mm, tilt 45°
2. Syringe: volume (10±0.5) cm³, needle hole diameter (0.8±0.02) mm
3. Rigid cover: (140±7) g
4. Small beaker: 50mL in capacity
5. The distance from the lower end of the syringe needle to the sample: (100±2) mm
6. Sample size: (360±2)mm×(235±5)mm

7. Wight: 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 Protective clothing-Selection, use, and maintenance of chemical protective clothing

BS EN 14325:2018 Chemical protective clothing. Test methods and performance classification for seam joining and assembly of chemical protective clothing materials (liquid repellency and resistance to liquid penetration)