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Automotive interior VOC environmental test chamber GB/T 39897-2021
Date: Feb 19,2024 Views: 163
Automotive interior VOC environmental test chamber GB/T 39897-2021GB/T 39897-2021 Detection methods for volatile organic compounds and aldehydes and ketones in non-metallic interior parts of vehicles
1. Main uses:
The 1 cubic meter VOC release environmental test chamber is mainly used to study the changes in VOC release in artificial panels and related light industrial products, coatings, adhesives, wallpapers, automotive interiors, furniture, artificial panels, and electronic and electrical products, and to detect artificial The amount of VOC released in boards and related light industrial products and the classification of tested products; comprehensive environmental index evaluation of indoor air quality based on indoor pollutant data or prediction models.
2. Technical indicators:
Temperature adjustment range: (15～40, 80, 100)℃ Adjustment accuracy: ±0.5℃
Relative humidity adjustment range: (40～80)%RH. Adjustment accuracy: ±1.5%R.H.
Air replacement rate adjustment range: 0.2m3~2m3/h (air exchange rate 0.2~2 times/h)
Adjustment accuracy: ventilation volume ±1%
Surface wind speed: the horizontal air velocity is maintained at (0.1~0.3) m/s, accuracy ≤ 0.05m/s
The test cabin is made of SUS304 mirror stainless steel plate and is integrally welded. The welding point and surrounding areas are polished and have no deformation, and all edges and corners are made into a certain arc. It can be cleaned with water. There are no rubber or adhesive materials that may cause dryness in the test. Sealing materials and other devices that are in contact with the air in the test cabin do not absorb TVOC and formaldehyde. There was no condensation or water droplets condensation in the test chamber.
Studio size: 0.80m (width) × 1.0m (height) × 1.25m (depth)
Control cabin (front view): 2100 (length) × 2020 (height) × 1200 (width) split structure can be customized.
Pressure 10±5Pa
Sealing Static leakage rate: under 1KPa relative pressure, leakage rate ≤0.5×10-3m3/min
Insulation box: polyurethane and insulation board, outer wall is steel plate, white spray-painted; inner wall: 304 stainless steel plate
background concentration
The background concentration of formaldehyde is <0.006mg/m3 and the background concentration of TVOC is <0.01mg/m³. Single VOC background concentration <0.002mg/m3
Clean gas supply system
1. Compressed air: air volume: 2 m3/h;
2. High-efficiency particulate filter: processing large air volume: 2m3/h. After treatment, the concentration of pollutants in the gas is required: the concentration of particles with a diameter greater than 0.5um is <100/m3.
3. Activated carbon filter: handle large air volume: 2 m3/h. After treatment, pollutant concentration requirements in the gas: TVOC concentration <0.02mg/m3, any VOC <0.002mg/m3, particles with a diameter greater than 0.5um The concentration is <100 pieces/m3, and the formaldehyde content is <0.006mg/m3.
The main structure is convenient and reasonable in structure placement and adapts to various spaces. It not only reduces energy consumption but also reduces equipment balancing time, improves detection efficiency and reduces detection costs.
The monitoring equipment uses a touch control screen as the dialogue interface for personnel to operate the equipment. It can directly set and digitally display the temperature, relative humidity, temperature compensation, dew point compensation, dew point deviation, and temperature deviation in the box. It uses original imported sensors and can automatically record and draw. control curve.
Monitoring parameters: Monitor and display the temperature and humidity, flow replacement rate, pressure difference, power on and off time, and working time in the cabin, and the data can be transferred and stored
Recovery rate: The average recovery rate of toluene and n-dodecane is not less than 80%
Power: starting power is less than or equal to 3kw, running power is 2kw
Working voltage 220V
