Scope of Application

【Operating Instructions】

Developed in accordance with Appendix D of the new national standard GB24540-2009 "Protective Clothing - Protective Clothing Against Chemicals (Acids and Alkalis)," this equipment is primarily used to determine the liquid repellency efficiency of fabrics for acid and alkali chemical protective clothing. It allows test liquid to flow over the specimen surface to check for retention or penetration and to calculate the liquid repellency efficiency.

Scope of Application
Developed in accordance with Appendix D of the new national standard GB24540-2009 "Protective 

Clothing - Protective Clothing Against Chemicals (Acids and Alkalis)," this equipment is primarily used 

to determine the liquid repellency efficiency of fabrics for acid and alkali chemical protective clothing.

 It allows test liquid to flow over the specimen surface to check for retention or penetration and to 

calculate the liquid repellency efficiency.

Compliance Standards

• GB24540-2009 "Protective Clothing - Protective Clothing Against Chemicals (Acids and Alkalis)" Appendix D

Technical Specifications

1. Rigid Transparent Trough: Semi-cylindrical shape; inner diameter (125±5) mm; length (300±2) mm; inclined at 45°.

2. Syringe: Specification (10±0.5) mL; needle hole diameter (0.8±0.02) mm; flat-head needle tip.

3. Small Beaker: Capacity 50 mL.

4. Distance from Lower End of Flat-Head Needle to Trough Bottom: (100±2) mm.

5. Specimen Size: (360±2) mm × (235±2) mm.

6. Microcomputer Automatic Injection System: Jetting speed capable of continuously spraying (10±0.5) mL

7. of liquid within (10±1) seconds.