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Water Vapour Permeability Tester
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Water vapour permeability of leather is evaluated by clamping a circular test specimen over the mouth of a bottle containing a solid desiccant and subjecting it to a rapid current of air. The air inside the bottle is circulated in weight if the desiccant in motion. The increase in weight of the bottle over a specified interval of time gives the quantitative measure of the water vapor permeability of the leather sample under test.
Related standard
- Iup/25 : official method of international union of leather Chemists society
- Is15298 (part - I) : method of physical testing of leather
- ISO 8782-1 : 1998
Technical Specification
| Speed of rotation of wheel | 75rpm |
| Distance between axis of rotation and axes of bottle | 67mm |
| Maximum number of bottle which can be mounted at a time | 6 |
| Inner diameter of bottles | 30mm |
| Speed of rotation of fan | 1425rpm |
| Size of blades of fan | 75 x 90 mm |
| Motor | ¼ HP 230 volt single phase AC |