LFY-264 Fur Water Permeability and Gas Permeability Tester

Main purpose/Use 
It is used for testing the water permeability of various fur products.
Instrument features
The test piece is placed on a bottle containing solid desiccant. The bottle is placed in an air-conditioned room with a fast air flow rate. Keeping the movement of the desiccant enables the air inside the bottle to circulate. The bottle is weighed at regular intervals to determine the mass of water vapor that passes through the fur and is absorbed by the desiccant.
Technical specifications
1. The diameter of the round hole on the bottle cap and the inner diameter of the bottle neck are both 30mm.
2. The rotational speed of the carrier wheel is (75 ± 5) r/min.
3. Test temperature: (20 ± 2) ℃, relative humidity: (65 ± 2) %.
4. Outer diameter of the test piece: 34mm circular test piece. 
5. The rotational speed of the fan at the bottle opening is (1400 ± 100) r/min. 
6. Test conditions: Temperature (20 ± 2) °C, Relative humidity (65 ± 2)%. 
7. Temperature accuracy: ±0.5℃, Relative humidity accuracy: Deviation of indicated value ±2%. 
Applicable Standards 
QB/T 1279-2012 Leather - Physical and Mechanical Tests - Determination of Water Vapor Permeability