Product name: Water vapor transmission rate tester
Product model: JK-WVTR-6-A
Product function:
Designed and manufactured in accordance with GB/T 17146 "Test method for water vapor transmission performance of building materials and their products", it adopts two test principles, dry method and wet method, and is suitable for building materials with water vapor equivalent air layer thickness between 0.1-1500m. It can also be used for the water vapor transmission rate of materials such as plastic film, aluminum foil, adhesive, sealant, coating, waterproof coating, varnish, etc.
Test principle: at a certain temperature, a specific humidity difference is formed on both sides of the sample, and water vapor passes through the sample in the moisture permeable cup into the dry side. By measuring the change in the weight of the moisture permeable cup over time, the water vapor transmission rate and other parameters of the sample are obtained.
Based on the standards:
GB/T 17146 Test method for water vapor permeability of building materials and their products
QB/T 2411 Determination of water vapor permeability of rigid foam plastics
GB/T 1037 Test standard for water vapor permeability of films and sheets7
GB/T 16928 Test method for packaging materials - Water vapor permeability
YY/T 0471.2 Test method for contact wound dressings - Part 2
JIS Z0208 Test method for moisture permeability of moisture-proof packaging materials
YBB 0009-2003 Determination of water vapor permeability
Supports testing of mass change rate, wet flow density, moisture permeability, moisture permeability resistance, moisture permeability coefficient, moisture resistance factor, water vapor equivalent air layer thickness, and supports both dry and wet test modes.
Meets the requirements of large range and large thickness test range for heavy and loose materials such as cement and thermal insulation foam.
Supports customization of 7 types of moisture permeability cups specified in the standard to meet the test of various materials.
Equipped with high-resolution Sartorius imported balance, the system test sensitivity and stability are significantly improved.
Circular structure test cavity design, 360º circulating purge wind, user-adjustable wind speed, uniform temperature and humidity distribution in the test cavity.
The air flow rate is controlled at 0.02m/s-0.3m/s, ensuring the constant humidity difference inside and outside the moisture permeable cup
The self-developed intermittent weighing measurement method, which automatically resets to zero before weighing, effectively reduces the system error
The temperature and humidity calibration socket can be quickly connected, which is convenient for users to quickly calibrate
Provide a standard weight fast calibration method to ensure the accuracy and universality of the test data
The entire test process is automatically recorded, the process data is reproduced, and the curve chart analysis function is convenient for comparative testing and analysis
Test data is stored in multiple formats, data import and export, window display, curve superposition analysis,
Serial number | Parameter | Parameter |
1 | Balance range | 00001g～320g or 0.001～3100g (dry method, wet method) |
2 | Sample quantity | 1 to 6 pieces (data are independent of each other) |
3 | Test accuracy | 0.01 g/m2·24h |
4 | System resolution | 0.0001 g (custom specifications available) |
5 | Temperature control range | 5℃～95℃(normal) |
6 | Temperature control accuracy | ±0.1℃ (normal) |
7 | Humidity control range | 5%RH～98%RH (will vary under different temperatures) |
8 | Humidity control accuracy | ±1%RH |
9 | Air flow rate | 0.02～0.3m/s (custom specifications available) |
10 | Sample thickness | 25mm (custom specifications available) |
11 | Test area | 33 cm2 |
12 | Sample size | Φ74 mm |
13 | Air source | Air |
14 | Air source pressure | 0.6 MPa |
15 | Interface size | Φ6 mm polyurethane tube |
16 | Power supply | 220VAC 50Hz / 120VAC 60Hz |
17 | Overall dimensions | 800mm (L) × 850mm (W) ×620 mm (H) |
18 | Net weight | 110Kg |
