W401L Infrared Method Water Vapour Permeability Analyser
Product Introduction
Infrared method water vapour transmission rate tester W401L is a newly developed, high-end precision packaging material testing instrument. It is used to test the water vapour transmission rate of samples under set temperature and humidity conditions. It is suitable for the water vapour transmission rate performance test of films, sheets, papers, packages and various materials in the fields of food, medicine, medical equipment, daily chemistry, photovoltaic electronics, etc.
Test Principle
W401L water vapour transmission rate tester adopts the principle of infrared method. Fix the pre-treated sample in the middle of the test chamber and divide the test chamber into a high-humidity side and a low-humidity side. The humidified nitrogen flows on one side of the film, and the dry nitrogen (carrier gas) flows at a fixed flow rate on the other side. In the presence of a humidity gradient, water vapour will permeate from the high-humidity side to the low-humidity side, and the water vapour that passes through the sample is carried to the infrared sensor by the flowing dry nitrogen, and the water vapour transmission rate (and other parameters) of the sample is obtained by the electrical signal output by the sensor.
Working principle diagram
Standards
ASTM F 1249, BS EN ISO 15106-2, JIS K7129, GB/T 26253, YBB 00092003
Specifications
| Item | Technical Parameters |
|---|---|
| Test Range | 0.01～200 g/(m² .24h) |
| Resolution | 0.0001 g/(m² .24h) |
| Temperature Control Range | 15～45°C |
| Temperature Control Accuracy | ±0.2°C |
| Humidity Control Range | (5～90) %RH, 100%RH |
| Humidity Control Accuracy | ±2%RH |
| Permeable Area | 50.24 cm² |
| Sample Size | Φ100 mm |
| Sample Thickness | ≤3 mm |
| Sample Quantity | 1 Piece |
| Carrier Gas | 99.999% Nitrogen (user provide) |
| Carrier Gas Pressure | ≥0.1 MPa |
| Carrier Gas Flow | 5~100 mL/min |
| Dimension | 440mm*680mm*380mm |
| Power | 450 W |
| Power Supply | AC 220 V, 50 Hz |
Features:
High-precision patented infrared moisture sensor
The high-precision infrared moisture analysis sensor independently developed and prepared by GBPI has ultra-high stability, ultra-low failure rate and ultra-long service life, high sensitivity, and a resolution of up to 0.0001 g/(m2·24h).
Accurate and reliable test data
Equipped with a high-precision temperature and humidity sensor. The temperature control accuracy can reach 0.2°C, and the humidity can be accurate to ±2%RH. Automatic test mode, real-time monitoring of temperature, humidity, flow values and curves during the test process and high test repeatability.
Ultra-wide test range, high instrument applicability
The instrument is equipped with a single cavity, which is compact and flexible, saving space. It has an ultra-wide test range [0.01～200 g/(m2·24h)], meeting the test requirements of various high, medium and low barrier materials. With the addition of adapter accessories, it can test the water vapour permeability of bottles, bags, bowls and other containers excess.
Application Field
| Films | Water vapour transmittance test of various plastic films (PP /PET / PE / PVC / BOPP / CPP, etc.), plastic composite films, paper plastic composite films, metal composite films, co-extrusion films, aluminium films, degradable packaging films (PLA / PBAT / PBS, etc.) |
| Sheet | Water vapour transmission rate test of solid pharmaceutical hard sheet (PP/PVC/PTP, etc.), metal composite sheet, rubber sheet and other sheet materials |
| Paper, cardboard, and their composites | Water vapour transmission rate test of paper and cardboard such as coated paper, silicone paper, aluminium paper for cigarette packs, paper-aluminium-plastic composite sheet, etc. |
| Medicinal Patch | Water vapour transmission performance test of medical plasters |
| Package | Customised fixtures can be extended to packaging parts, such as the water vapour transmission rate of medical polyethylene bottles, sealed bags, medical ointment tubes, infusion hoses, plastic trays, etc. |
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