Leather Water Vapor Permeability Testing Machine

Product information

The vapor permeability of leather is evaluated by means of measuring the weight of water-vapor that permeates to specimen per unit time and per unit area. The main functional components includes: testing holder clamp, ventilation fan, control panel with functions of switch, time setting and recording.

The machine has six separate test stations on a rotary table and each one has a sample holder. Silica gel desiccant is placed in the holder and the test material is placed over the neck of the holder and secured by a screw top. After weighing each holder, complete with silica gel and sample material, the holders are placed and locked into the rotary mechanism.

After 7-8 hours the complete holder is weighed again and the gained weight is used to determine the degree of permeability. It is essential that the entire operation is carried out in a conditioned atmosphere of 20°C and 65% per cent relative humidity. In addition to the standard equipment, the tester is also supplied with a built-in timer to record the number of hours that testing has been carried out.

Standards

UNI EN IUP/15. UNI EN 13515.

EN ISO 20344: 6.6. IUP 15. BS 3144 Method 24.

SLP 25.DIN 53333. ISO 17699.

DIN 53 429. METODO - 309 WI 009

Applications

Shoes water vapour permeability tester is mainly applicable to leathers and textiles used in footwear uppers and clothing where it gives a measure of the ability to remove perspiration from the surface of the wearer's skin.The tester is used to determine the amount of water vapour a material will transmit through its structure in a specified time.

Technical Parameters

1. Temperature Range: 20-60°C

2. Humidity Range: 40-95% (no-load)

3. Temperature Accuracy: ±0.5°C (no-load)

4. Humidity Accuracy: ±3% (no-load)

5. Chiller: Air-cooled, sealed compression type

6. Cooler: Fin-type condenser

7. Humidifier: Pot-type humidifier (with burnout preventer)

8. Heater: Fin-type radiator (with overheat preventer)

9. Blower: Fan (upper and lower)

10. Air Speed Adjustment Range: 0.5-1.5 m/s

11. Rotating Frame: Two upper and lower stages (270 mm diameter)

12. Indoor Dimensions: Approximately W400 × D360 × H500 mm

13. Power Supply: AC 220V 50Hz

14. External Dimensions: Approximately W1100 × D550 × H1470 mm