W812 Water Vapour Permeability Analyser
Product Introduction
This product is based on the test principle of cup method water vapour transmission, and is designed and manufactured according to ASTM E96, GB/T 1037 standards. It provides a wide range and high efficiency water vapour transmission rate detection for low, medium and high water vapour barrier materials. It is suitable for the water vapour transmission performance test of films, sheets, paper, fabrics, non-woven fabrics and related materials in the fields of food, medicine, medical equipment, daily chemicals, etc.
Test principle
Desiccant (weight gain method) or place water (weight loss method) in the sample cup. Seal the sample cup with the sample and place it in the test box. Control the temperature, humidity and wind speed of the test box. The difference in humidity drives the water vapour to penetrate the sample, and the mass of the sample cup increases or decreases. The mass of the sample cup is regularly weighed, and the performance parameters such as the water vapour transmission amount of the sample are calculated.
Standards
ASTM E96, GB/T 1037, GB/T 16928, GB/T 17146, GB/T 12704, GB/T 19082, GB/T 21332, ASTM D1653, ISO 2528, TAPPIT464, DIN 53122-1, YBB00092003
Specifications
| Item | Technical Parameters |
|---|---|
| Test Range | film: 0.05~10,000 g/(m²·24h), Container: 0.0002~30 g/(pkg·24h) |
| Test Precision | film: 0.05 g/(m²·24h), Container: 0.0002 g/(pkg·24 h) |
| Test Station | 12 Pieces |
| Balance Range | 210 g |
| Balance Indexing | 0.1 mg |
| Temperature Range | 10~50±0.1 ℃ |
| Humidity Range | 5%～95%, 100% RH |
| Air Speed | 0.5~2.5 m/s (0.03~0.5 m/s optional) |
| Sample Size | Φ74 mm |
| Sample Thickness | ≤3 mm |
| Test Method | weight gain method, weight loss method |
| Standard Test Area | 33 cm² |
| Carrier Gas Specification | Air compressor |
| Air Pressure | ≥0.6 MPa |
| Connection Size | Φ6 mm Polyurethane tube |
Get in touch to discuss your requirements