W303 2.0 Gravimetric Method Water Vapour Permeability Analyser
Product Introduction
The W303 2.0 WVTR tester is designed and produced based on the test principle of weight method (weight reduction) and as per the standards of GB/T 1037 and ASTM E96, etc. It is suitable to measure the water permeability performance of film, sheets, papers, packagings and other related materials in the industries of food, pharmaceutical, medical equipment, daily chemicals, photovoltaic electronics, etc. It provides high efficiency water vapour transmittance detection for high, medium and low water vapour barrier materials.
Test Principle
Add distilled water to a dry, clean test dish and place the test dish, sealed by pre-processed sample, into the test chamber. By controlling the temperature and humidity, the distilled water in the test dish will evaporate. The evaporated water vapour is absorbed by the drying device through the film. By measuring the decreasing weight change of distilled water in the test dish, over time, you can obtain the parameters of water vapour permeability of the sample, etc.
Standards
ASTM E96/E96M, ASTM D1653, TAPPI T464 ISO 2528, DIN 53122-1, JIS Z0208
Specifications
| Item | Technical Parameters |
|---|---|
| Test Range | 0.1～10000 g/(m² .24h) |
| Test Precision | 0.0001 g/(m²·24h) |
| Temperature Control Range | 15～55℃ |
| Temperature Control Accuracy | ±0.1°C |
| Humidity Control Range | ≤10%RH dry method |
| Humidity Control Accuracy | ±2%RH |
| Test Area | 50.24 cm² |
| Sample Size | Φ90 mm |
| Sample Thickness | ≤3 mm |
| Sample Quantity | 3 Pieces |
| Power | 1300 W |
| Power Supply | AC 220 V, 50 Hz |
Features:
High precision load cell
The instrument is equipped with a high-precision weighing sensor that provides stable performance and resolution up to 0.0001 g/(m2·24h). The semiconductor stabiliser automatically controls the temperature, and the temperature control accuracy is 0.1 ℃.
Meeting the test requirements of high throughput, wide range and high applicability
The instrument is equipped with 3 chambers with independent data, which can meet the requirements of high throughput testing. The wide measuring range 0.1~10000 g/(m2·24h) meets the testing demand of high, medium and low barrier materials. By using customised fixtures, you can also measure the water vapour transmission of bottles, bags, bowls and other packaging parts.
Outstanding shape, easy operation, real-time visual curve
Automatic operation, one key test, automatic judgment and automatic shutdown. Real-time display of four groups of curves (transmittance time, temperature time, humidity time, weight time).
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 | Customisable fixtures can be extended to packages such as pharmaceutical polyethylene bottles, sealed bags, pharmaceutical ointment tubes, infusion hoses, plastic trays, etc. |
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