Water Vapour Permeability Tester
The Water Vapour Permeability Tester is a constant temperature and humidity instrument designed to evaluate the moisture permeability of waterproof-breathable textiles, sportswear fabrics, polymer films, processed paper, and other moisture-resistant packaging materials. By sealing samples onto cups filled with anhydrous calcium chloride and exposing them to controlled climate conditions, the instrument calculates water vapour transmission through weight change. With precise PID environmental control, adjustable airflow, and a rotating sample holder, it ensures highly stable, repeatable, and multi-standard test results.
Application
Suitable for testing water vapour permeability of sportswear fabrics, waterproof-breathable textiles, outdoor functional materials, composite membranes, polymer films, processed paper, and various moisture-proof packaging materials. Its rotating sample holder and adjustable airflow ensure uniform test conditions, making it ideal for high-performance moisture management fabrics.
Standards
ASTM Standards
ASTM E96 / E96M – Water Vapour Transmission / Permeance Test
ISO / JIS / GB Standards
JIS L1099 – Water Vapour Permeability of Textiles
GB/T 12704 – Test Method for Water Vapour Transmission of Textiles
ISO (Equivalent methods referring to ASTM E96)
Features
Compatible with ASTM, ISO, JIS and GB standards for moisture permeability testing.
Rotating sample holder with adjustable speed for more uniform testing than fixed holders.
Adjustable airflow with imported wind speed sensors for excellent accuracy and stability.
PID temperature and humidity control to minimize fluctuations and prevent overshoot.
Built-in calibration functions to prevent long-term sensor drift.
High-precision temperature and humidity sensors provide stable and reliable data.
SCM control system with a color touch screen for intuitive and intelligent operation.
Automatic calculation of WVT, WVP and PV values directly on the touch screen.
PC software for data recording, temperature/humidity curve tracking and report printing.
Parameters
| Item | Specification |
|---|---|
| Temperature Range | 20–60 ℃ |
| Humidity Range | 40–95% RH (no load) |
| Temperature Accuracy | ±0.5 ℃ |
| Humidity Accuracy | ±3% RH |
| Freezer | Air-cooled airtight compressor |
| Cooler | Finned-type heat exchanger |
| Humidifier | Pot-type (with anti-dry protection) |
| Heater | Finned heater (with over-temperature guard) |
| Fans | 2 sets (upper and lower) |
| Airflow Speed | 0.5–1.5 m/s |
| Sample Holder | Rotating, 2 sections (270 mm diameter) |
| Test Chamber Size | W400 × D360 × H500 mm approx. |
| Power Supply | AC 220V, 50 Hz |
| Overall Dimensions | W1100 × D550 × H1470 mm approx. |
Send product request
Other supplier products
 |
Contact Lens Oxygen Permeability Tester | The Contact Lens Oxygen Permeability Tester (Polarography Method) is a precision instrument designed to measure the oxygen permeability (Dk) of sof... |
 |
Martindale Abrasion And Pilling Tester | Testing Equipment | Martindale Abrasion & Pilling Tester To determine the abrasion and pilling resistance of all kinds of textile structures. Samples are rubbed ag... |
 |
Hexapod Tumbler test machine | Standard BSEN 1471:1997: Evaluation of Appearance Changes in Floor Coverings ISO 9405:2001: Floor Coverings – Determination of Appearance C... |
 |
Washing Fastness testing machine | G228B washing fastness tester is used for washing, dry-clean color fastness testing. Electric touch switch, LCD menu display, without mechanical co... |
 |
Thermal Manikin System | Full-body mannequin for enhanced clothing testing Walter Sweating Fabric Manikin (Walter Sweating Fabric Mannequin) is designed in accordance with... |
Same products
 |
Blanket Flammability Test Machine | Seller: Standard Groups | Bed Blanket Flammability Tester-It is mainly used for testing the flame retardant performance of ... |
 |
High Temperature Oxygen Index Tester | Seller: Standard Groups | The High-Temperature Oxygen Index (TOI) measuring instrument determines oxygen index at up to 125... |
 |
Limiting Oxygen Index Tester | Seller: Standard Groups | The Limiting Oxygen Index Tester measures the minimum oxygen concentration needed to sustain comb... |
 |
Vertical Flammability Tester | Seller: Standard Groups | Vertical Flammability Chamber for measuring the vertical flame spread for children’ sleepwe... |
 |
45 Degree Flammability Tester | Seller: Standard Groups | Application 45 Degree Flammability Tester is used to determine the burning characteristics of te... |
