The main purpose
LFY-216C Fabric Moisture Permeability Tester uses a moisture-permeable cup moisture absorption method to measure the ability of water vapor to permeate fabrics. This instrument is used to measure the moisture permeability (vapor) of various fabrics (including moisture-permeable coated fabrics), cotton wool, space cotton and other non-woven fabrics used in clothing. Moisture permeability can reflect the performance of clothing perspiration and steam, and is one of the important indicators for identifying the comfort and hygiene of clothing.
Instrument characteristics
1. The instrument main cabinet and instrument control cabinet with refrigeration system.
2. Adjustable wind speed and rotating sample frame.
3. 4 pieces of circular moisture-permeable cups for measuring thin samples for American standards; 3 moisture-permeable cups for national standards; 4 moisture-permeable cups for British standards.
4. With PID self-tuning temperature/humidity controller.
5. Digital display timer.
6. Start timing button/stop timing button.
Technical index
1. Test temperature and humidity conditions:
    Temperature (38±2)℃, relative humidity (50±2)%
    Temperature (38±2)℃, relative humidity (90±2)%
    Temperature (23±2)℃, relative humidity (50±2)%
    Temperature (20±2)℃, relative humidity (65±2)%
2. Temperature accuracy: ±0.5℃, relative humidity accuracy: ±2% of indicated value
3. Air velocity: 0.02m/s～0.3m/s
4. Test time: 0～99.99h
5. Heating power: 700W
6. Humidification capacity: ≥250ml/h
7. Moisture permeability area: ≥3000mm2 (ASTM), 2826mm2 (national standard)

8. Power supply: AC220V, 50Hz

9. Dimension：910*510*1110mm

Applicable standards (for different standards, different accessories are required)
GB/T 12704.1-2009 Textiles Test method for moisture permeability of fabrics Part 1: Moisture absorption method
GB T 12704.2-2009 Textiles. Test method for moisture permeability of fabrics. Part 2: Evaporation method
ASTM E96-00 "Standard Test Methods for Water Vapor Transmission of Materials" moisture absorption method

BS7209: 1990 "British Standard Specification for Wator Vapor Permeable Apparel Fabrics" moisture absorption method

YY/T 1642-2019 Single-use medical protective hood

YY/T 1799-2020 Technical requirement of re-usable protective clothing for medical use 4.2.1.1

GB 19082-2023 Disposable protective clothing for medical use

Key words
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