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.
Versatile Testing for Medical DressingsEngineered to support both sterile and non-sterile disposable medical dressings, the WVTR Testing Machine offers comprehensive testing options. Its wide measuring range allows for effective analysis of moisture barrier properties, crucial for wound care product performance. High throughput and customizable test conditions ensure reliable data for manufacturers, exporters, and quality teams alike.
Advanced Technology and Data ManagementThe equipment boasts a microprocessor-controlled system with auto-calibration, programmable settings, and continuous or interval modes, enhancing test flexibility. An integrated digital LCD and Windows-compatible software streamline result analysis. With inbuilt memory for up to 1000 data sets, robust interface options, and alarm systems, the device excels in accuracy, safety, and compliance.
FAQ's of Accurate WVTR Testing for Medical Dressings:
Q: How does the WVTR Testing Machine measure water vapor transmission in medical dressings?
A: The machine evaluates water vapor transmission using either the Gravimetric (Desiccant) or Infrared sensor method. Samples are placed in test cups, and the system measures the amount of vapor passing through the specimen under controlled humidity and temperature, following ASTM E96, ISO 2528, and EN 13726-2 standards.
Q: What are the benefits of using this WVTR Testing Machine for wound care product manufacturers?
A: This equipment ensures high-precision testing with auto-calibration, real-time data logging, and digital display. Its adjustable settings accommodate various test conditions, enabling product quality assurance, regulatory compliance, and consistent performance evaluation for wound care and surgical film materials.
Q: When should automatic versus manual calibration be used?
A: Automatic calibration is suitable for routine operations, ensuring quick and standardized alignment. Manual calibration is recommended for verifying accuracy after maintenance or when using specialized test conditions, thus guaranteeing ongoing reliability.
Q: Where can the test data from the machine be accessed and managed?
A: Test data is stored internally for up to 1000 records, and it can be exported via USB or RS232 ports. The data can be managed and analyzed using the supplied Windows-based software, which supports both English and Chinese languages.
Q: What is the testing process for WVTR analysis with this machine?
A: The process involves placing up to three specimens of 74 mm diameter into the chamber, setting desired test parameters (speed, temperature, humidity), and beginning the test. The machine records measurements, which are displayed digitally and logged in real time for subsequent data review.
Q: How does the machine ensure accuracy and meet compliance standards?
A: The device is manufactured with precision 304 stainless steel and includes advanced insulation and alarm systems for over-temperature and over-pressure protection. Compliance with ASTM, ISO, and EN standards, alongside high-resolution readings (0.01 g/m2.24h), ensures international quality and accuracy requirements are met.