The instrument is designed and manufactured in accordance with GB/T12704-2009 "Method for Measuring the Moisture Permeability of Fabrics Moisture Permeability Cup Method/Method A Moisture Absorption Method", and is suitable for measuring all kinds of fabrics (including moisture-permeable coated fabrics), cotton wool, space cotton, etc. For the moisture permeability (vapor) of clothing non-wovens. The moisture permeable cup moisture absorption method was used to determine the ability of water vapor to pass through the fabric. Moisture permeability can reflect the performance of clothing perspiration and steam, and is one of the important indicators to identify the comfort and hygiene of clothing Instrument Characteristics 1. Instrument main cabinet and instrument control cabinet with refrigeration system 2. Adjustable wind speed 3. For the American standard, there are 4 square moisture-permeable cups for measuring thick samples and 4 round moisture-permeable cups for measuring thin samples; 3 moisture-permeable cups for national standard 4. With PID self-tuning temperature/humidity controller 5. Digital display timer 6. Start timing button/stop timing button Technical index 1. Temperature control range: 10℃～50℃±1℃ 2. Humidity control range: indoor relative humidity 50%RH～90%RH±2%RH Note: "ASTM E96-00" standard stipulates: test temperature 21℃～32℃±1℃; Recommended test temperature and humidity conditions: (1) Routine test: temperature 32℃±1℃, relative humidity 50%RH±2%RH (2) High temperature and high humidity test: temperature 38℃±1℃, relative humidity 90%RH±2%RH 3. Air velocity: 0.02～0.3m/s 4. Test time: 1 second to 99 hours and 99 minutes, optional 5. Heating power: 600W 6. Humidification capacity: ≥250ml/h 7. Moisture permeability area: ≥3000mm2 (ASTM), 2826mm2 (national standard) 8. Power supply: AC220V, 50Hz