LFY-216B Fabric Moisture Permeability Tester

Main application
The LFY-216B fabric moisture permeability tester uses the moisture absorption method of the moisture absorption cup to measure the ability of water vapor to pass through the fabric. This instrument is used to measure the moisture permeability (vapor permeability) of various fabrics (including moisture-permeable coated fabrics) as well as cotton fibers, space fibers, etc., which are used as non-woven materials for clothing. Moisture permeability can reflect the sweat-wicking and vapor-permeation performance of clothing and is one of the important indicators for evaluating the comfort and hygiene of clothing.
Instrument features
1. The main box and control cabinet of the instrument are equipped with a refrigeration system.
2. The wind speed can be adjusted.
3. There are 4 square moisture absorption cups for measuring thick samples and 4 circular moisture absorption cups for measuring thin samples (in accordance with the US standard); 3 moisture absorption cups are provided for the Chinese standard.
4. There is a PID self-tuning temperature/humidity controller.
5. Digital timer.
6. Start timing button/Stop timing button. Technical indicators
1. Test temperature and humidity conditions:
    Temperature (38 ± 2) °C, Relative humidity (50 ± 2)%
    Temperature (38 ± 2) °C, Relative humidity (90 ± 2)%
    Temperature (23 ± 2) °C, Relative humidity (50 ± 2)%
    Temperature (20 ± 2) °C, Relative humidity (65 ± 2)%
2. Temperature accuracy: ±0.5 °C, Relative humidity accuracy: Measured value ±2%
3. Airflow speed: 0.02 m/s to 0.3 m/s
4. Test time: 0 to 99.99 hours
5. Heating power: 600 W
6. Humidity addition rate: ≥ 250 mL/h
7. Moisture permeability area: ≥ 3000 mm² (ASTM), 2826 mm² (National Standard)
8. Power supply: AC 220V, 50Hz 
9. Dimensions: 910*510*1110mm
Applicable standards (different standards require different accessories)
GB/T 12704.1-2009 Textiles - Test methods for water vapor transmission - Part 1: Absorption method
GB/T 12704.2-2009 Textiles - Test methods for water vapor transmission - Part 2: Evaporation method
ASTM E96-00 Standard Test Methods for Water Vapor Transmission of Materials, Absorption method
YY/T 1642-2019 One-time use medical protective cap
YY/T 1799-2020 Technical requirements for reusable medical protective clothing 4.2.1.1 
T/CTES 1013-2019 Medical Protective Clothing - Isolation Use Grade 1 Classification and Technical Specifications

YY/T 1871-2023 Medical Isolation Gowns 
GB 19082-2023 Medical Disposable Protective Clothing 
FZ/T 73074-2023 Flame-retardant knitted garments

GB/T 21294-2024 Methods for Testing Physical and Chemical Properties of Clothing 
GB/T 21295-2024 Technical Requirements for Physical and Chemical Properties of Clothing 
FZ/T 64113-2024 Anti-static Fabric Without Molten Dripping 
GB/T 17591-2025 Flame Retardant Fabrics 
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