The main purpose
LFY-216B 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. The wind speed is adjustable.
3. For the American standard, there are 4 square moisture-permeable cups for measuring thick samples and 4 round moisture-permeable cups for thin samples; 3 moisture-permeable cups for national 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: 600W
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

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

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

FZ/T 73074-2023    Flame-retardant knitted garments

Key words

Moisture permeability tester; fabric moisture permeability tester; fabric moisture permeability tester; moisture permeability tester; moisture permeability tester; moisture permeability tester; moisture permeability tester; moisture permeability tester; moisture permeability tester; fabric Moisture permeability tester; fabric moisture permeability tester; fabric moisture permeability tester; national standard moisture permeability meter; American standard moisture permeability meter

T/CTES 1013-2019 Technical specification for classification and performance of protective apparel and surgical drape

YY/T 1871-2023  Isolation gowns for medical use