Product Description
High Precision
- Patented test chamber and test dishes with advanced fluid dynamics and thermodynamic designs.
- Labthinks proprietary thermostat technology ensures that the test chamber is precisely temperature controlled and remains stable throughout the test.
- Precise and scientific regulation and calculation of testing conditions.
High Efficiency
- 12 test stations
- Supports test modes of desiccant method and water method
Labor Saving
- Automatic humidity and flow rate controlling.
- Desiccator requires no replacement of inner core.
- High-efficiency water vapor generator.
Simplified Operation
- 12 touch-screen pad powered by WindowsTM 10 operating system
- Fast automatic testing process
- Optional DataShieldTM software and accessories for automatic data management
Product Features
New Generation Test Chamber and Test Dishes
Patented test chamber and test dishes with advanced hydrodynamic and thermodynamic designs ensure the uniform flow rate over the specimen surface, stable temperature and humidity, creating a uniform and stable testing environment. As a result, the test duration is shortened and the test results will be more accurate.
Excellent Testing Abilities of High and Low Barrier Materials
The testing conditions will be regulated precisely in real time, which ensures the high testing accuracy and repeatability of high and low barrier materials.
Automatic Controlling of Temperature, Humidity and Air Velocity
Labthinks proprietary thermostat technology ensures that the test chamber is precisely temperature controlled and remains stable throughout the test.
Air velocity is monitored and regulated in real time.
High-efficiency and mist-free automatic humidity regulator meets the requirements for long-term continuous tests.
It is unnecessary to replace the inner core of the desiccator, which can continuously work for 20,000 hours.
Easy-to-use and High-efficiency System
The automatic test mode, combined with the instrument features, eliminates the need for manual adjustments to quickly obtain accurate results, saving training costs and releasing staff from manual monitoring so that they are available for other tasks.
The professional test mode provides flexible and rich instrument control functions to meet individual scientific research needs.
Unique, optional DataShieldTM system facilitates centralized management of user data. It supports a variety of formats of exported data. Reliable security algorithms are used to prevent data leakage. It supports universal wired and wireless LAN, optional private wireless network and third-party software.
User-oriented Service Concept
Adhering to our user-oriented service concept, Labthink has created a customization system that provides flexible and comprehensive customization services for the accommodation of non-standard specimens and packages.
Test Principle
The test specimen is mounted in the test dish which contains water or desiccant inside. The test dish is placed in the test chamber with stable temperature, humidity and air flow. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish periodically, water vapor transmission rate and other parameters can be obtained.
Test Standards
ASTM E96, ASTM D1653, ISO 2528, TAPPI T464, DIN 53122-1, GB/T 1037, GB/T 16928, YBB 00092003-2015
Applications
| Basic Applications |
- Films
Plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminum coated films, aluminum foil composite films, glass fiber aluminum foil paper composite films and many other film materials
|
- Sheeting
PP, PVC and PVDC sheeting, metal foils, rubber pads and other sheeting materials
|
- Paper and Paper Board
Aluminum coated paper for cigarette, paper aluminum plastic composite film and other paper and paperboards
|
- Textiles and Nonwovens
Textiles and nonwoven fabrics
|
| Extended Applications |
- Construction Materials
Geotextiles, felt, roofing and building materials, vapor barrier membranes, etc.
|
- Aseptic Wound Protection Films and Medical Plasters
Aseptic wound protecting films, medical plasters and protective clothing materials
|
Technical Specifications
Table 1: Test Parameters Note1
| Parameter |
Model C360H |
| Testing Efficiency |
0.01g/(m2day) 0.5g/(m2day) |
>24 hours |
| 0.0006g/(100in2day) 0.0323g/(100in2day) |
| 0.5 g/(m2day)5 g/(m2day) |
12 24 hours |
| 0.0323g/(100in2day) 0.3225g/(100in2day) |
| > 5 g/(m2day) |
12 hours |
| > 0.3225 g/(100in2day) |
| Max. Test Range |
Water Method |
10000/ni141-12i14g/(m2day) |
| 645/ni141-12i14g/(100in2day) |
| Desiccant Method |
1200g/(m2day) per piece |
| 77g/(100in2day) per piece |
| Test Station |
|
12 |
| Test Temperature |
C |
20 55 0.2 |
| Test Humidity |
RH |
10% 90% 1% |
| Additional Functions |
DataShieldTM Note2 |
Optional |
| Computer System required by GMP |
Optional |
| CFR21 Part11 |
Optional |
Table 2: Technical Specifications
| Specimen Size |
I74mm |
| Specimen Thickness |
3mm |
| Test Method |
Desiccant Method / Water Method |
| Standard Test Area |
33cm2 |
| Carrier Gas |
Compressed Air |
| Drying of Carrier Gas |
Long Service-life Desiccator (unnecessary to replace inner core) |
| Humidifying of Carrier Gas |
High-efficiency mist-free humidity generator |
| Carrier Gas Pressure |
0.6 MPa |
| Port Size |
I6mm PU Tubing |
Note 1: The parameters in the table are measured by professional operator in Labthink laboratory according to relative requirements for laboratory standard conditions.
Note 2: DataShieldTM provides safe and reliable data application support. Multiple Labthink instruments can share one single DataShieldTM system which can be purchase as required.
Note 3: The described product features should be in line with Table 1: Test Parameters.
Comprehensive Compatibility for Hydrogel DressingsThe WVTR Tester supports multiple types of medical hydrogel and film dressings, accommodating varying sizes and shapes up to 80 mm x 80 mm. This versatility makes it suitable for research, manufacturing, and quality control environments focused on advanced wound care products.
Advanced Standards Compliance and AccuracyFully compliant with ASTM and ISO 2528 standards, this equipment ensures results meet stringent international requirements. Its precise measurement capabilities-offering 1% FS accuracy and a resolution of 0.001 g/m224h-guarantee reliability for regulated pharmaceutical and medical device industries.
Reliable Operation and Service SupportDesigned for ease of use, the tester features microcomputer control, automatic recording, and a digital LCD display. Environment settings are easily adjustable, and on-site installation with training is provided, ensuring seamless integration into laboratory workflows with minimal downtime.
FAQ's of Water Vapor Transmission Rate Testing for Medical Hydrogel Dressings:
Q: How does the water vapor transmission rate tester operate when testing hydrogel dressings?
A: The tester utilizes a dual chamber system with adjustable humidity and temperature, allowing precise control during testing. Automated microcomputer controls and easy operation enable accurate measurements of water vapor movement across hydrogel or film dressings.
Q: What standards does the equipment comply with for medical hydrogel dressings?
A: This device fully conforms with ASTM and ISO 2528 as well as relevant medical testing standards, ensuring results are internationally recognized and suitable for regulatory submissions.
Q: When should calibration and maintenance be carried out on the machine?
A: Users can calibrate the equipment as needed, with recommended intervals based on usage frequency or after significant workload changes. Regular calibration maintains 1% FS accuracy and extends instrument lifespan.
Q: Where can this WVTR tester be used within the medical field?
A: The equipment is designed for laboratory testing and can be integrated into research, product development, or quality control laboratories in medical device, pharmaceutical, and hydrogel dressing manufacturing companies.
Q: What is the process for storing and exporting test results?
A: Up to 500 test results can be stored internally. Data can be reviewed on the LCD digital display or exported via the RS232 interface for further analysis, record keeping, or regulatory documentation.
Q: How does the tester ensure safe and reliable operation during testing?
A: Automatic over-temperature and over-pressure alarms protect both users and samples, while the enclosed system limits ambient noise to below 65 dB(A). User-friendly controls, alongside environmental monitoring, sustain consistent and safe performance.
Q: What benefits does using this machine bring to laboratories and manufacturers?
A: Laboratories benefit from high-accuracy and rapid response (10 s), efficient testing speeds (10-500 mm/min), and reliable automation. Additionally, on-site installation and training, easy maintenance, and compliance with international standards enhance productivity and product quality.