LFY-216C Fabric Moisture Permeability Tester

Main purpose
The LFY-216C fabric moisture permeability tester measures the ability of water vapor to pass through fabrics using the moisture cup absorption method. This instrument is used to determine the moisture permeability (vapor permeability) of various fabrics (including moisture-permeable coated fabrics) as well as cotton fibers, space fibers, and other non-woven materials used in clothing. Moisture permeability can reflect the sweat and vapor dissipation performance of clothing and is one of the important indicators for evaluating the comfort and hygiene of clothing.
Instrument features
1. Main box and control cabinet with a refrigeration system.
2. Adjustable wind speed and sample frame rotation.
3. 4 circular moisture cups for US standards; 3 moisture cups for national standards; 4 moisture cups for British standards.
4. 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: 700 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 * 1110 mm 
Applicable standards (different standards require different accessories)
GB/T 12704.1-2009 Textiles - Test methods for water permeability of fabrics - Part 1: Absorption method
GB/T 12704.2-2009 Textiles - Test methods for water permeability of fabrics - Part 2: Evaporation method
ASTM E96-00 "Standard Test Methods for Water Vapor Transmission of Materials" Absorption method
BS7209:1990 "British Standard Specification for Water Vapor Permeable Apparel Fabrics" 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 
GB 19082-2023 Medical Disposable Protective Clothing
FZ/T 73074-2023 Flame Retardant Knitted Clothing
GB/T 21294-2024 Inspection Methods for 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 Drip 
GB/T 17591-2025 Flame Retardant Fabrics 
GB 28408-2025 Protective Clothing - Insect Protection Clothing 
GB 28895-2025 Protective Clothing - Oil-resistant, Easy-to-Wash and Anti-static Protective Clothing 
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