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Production introduction
It is suitable for the water vapor transmission performance test of films, sheets, paper, fabrics, non-woven fabrics and related materials in the fields of food, medicine, medical equipment, and daily chemicals.
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 humidity difference drives the water vapor to penetrate the sample, and the mass of the sample cup increases or decreases; regularly weigh the quality of the sample cup, and calculate the water vapor transmission rate and other performance parameters of the sample.
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
Techinical Specification
|
Item |
Technical parameters |
|
Test range |
film：0.05~10,000 g/(m2·24h)，Container：0.0002~30 g/(pkg·24 h) |
|
Test precision |
film：0.0001 g/(m2·24h)，Container：0.0002 g/(pkg·24 h) |
|
Test station |
9 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 cavity and permeable cup design upgraded, 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, and the test error is less than 0.05 g/m2·24h.
9 test stations; support weight gain and weight loss test modes
Precise control of temperature, humidity and wind speed
Adopt international advanced electromagnetic temperature control technology, three-dimensional constant temperature of cavity space, temperature control accuracy of 0.1 ℃
Dual airflow (dry air and wet air) humidity control method, automatic adjustment of wind speed, moisture-free 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 operation, real-time visualization of curves
The products are artistically designed from the perspective of ergonomics and technical aesthetics, with exquisite 3D printed shells, smooth lines, fashionable and beautiful, novel and unique.
Application
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|
Films |
Water vapor transmission rate test of film-like materials such as: Various plastic films (PP/PET/PE/PVC/BOPP/CPP,etc.) plastic composite films, paper-plastic composite films, metal composite films, co-extrusion films, aluminized films, degradable packaging films (PLA/PBAT/PBS) etc.) |
|
|
Sheet |
Water vapor 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 vapor transmission rate test of paper and cardboard such as coated paper, silicone paper, aluminized paper for cigarette packs, paper-aluminum-plastic composite sheet, etc. |
|
|
medicinal patch |
Water vapor transmission performance test of medical plasters |
|
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Package |
Water vapor transmission rate of the packaging parts which fixtures can be customizable, such as themedical polyethylene bottles, sealed bags, medical ointment tubes, infusion hoses, plastic trays, etc. |
