AUTO W812 Gravimetric Method 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: 0.0001 g/(m²·24h) |
| 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 |
Features
Test chamber and breathable cup design upgrade, efficient multi-mode
Newly designed test cavity and round moisture permeable cup, fully automatic rotating tray, high weighing efficiency, 360° three-dimensional constant temperature and humidity in the test cavity, test error less than 0.001 g/m2·24h. 12 test stations; support weight gain and weight loss test modes.
Precise control of temperature, humidity and wind speed
The semiconductor stabiliser automatically controls the temperature, and the temperature control accuracy is 0.1 ℃. Dual airflow (dry air and wet air) humidity control method, automatic wind speed adjustment, no water mist humidity adjustment technology, stable humidity, high precision, humidity accurate to ±2%RH, to meet the needs of long-term continuous testing.
Fault self-check, professional safety protection
Power-on self-test to avoid testing under fault conditions. Balance thermal insulation, moisture-proof technology, to ensure the stability and life of the balance.
Excellent appearance, convenient control, real-time visualisation of curves
The product is artistically designed from the perspective of ergonomics and technical aesthetics, with exquisite 3D printed shell and smooth lines. The instrument has a fully automatic operation, one-key test, automatic judgment and automatic shutdown. Real-time display of four sets of curves of transmittance-time, temperature-time, humidity-time and weight-time.
Intelligent operating system, global certification
The intelligent operating system, with modular graphics has a flexible setting of test process parameters and an intuitive and convenient operation. Designed according to the GMP appendix "Computerised System", it has the function of auditing and tracking, and multi-level permission settings for users to meet the requirements of the pharmaceutical industry for data traceability. Personalised test reports can be set as needed, and data output forms in multiple formats are supported. Supports electronic signature and online submission of audit report functions. It has global strength certification and Chinese and English language settings can be performed as needed.
Professional calibration service, accurate and reliable data
The instrument is calibrated and verified by the national standard material independently developed to ensure the accuracy, versatility and authority of the test data.
Lab intelligent IoT platform
The instrument can be connected to the IoT platform to enable network digital management. Customers can download the required instrument information, documents, and operation videos on the platform by themselves.
Application Area
| Film | Suitable for water vapour permeability 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, aluminised films, degradable packaging films (PLA/PBAT/PBS), etc. |
| Sheet | Suitable for water vapour permeability test of solid pharmaceutical hard sheet (PP/PVC/PTP, etc.), metal composite sheet, rubber sheet and other sheet materials. |
| Paper, cardboard and composite material | Suitable for water vapour permeability test of paper and cardboard, such as coated paper, silicone paper, aluminised paper for cigarette packs, paper-aluminium-plastic composite sheet, etc. |
| Medicinal Patch | Suitable for water vapour permeability test of medical plasters. |
| Package | Customisable clamps can be extended to packaging parts, such as medical polyethylene bottles, sealed bags, medical ointment tubes, infusion hoses, plastic trays, etc. |
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