1m3 Formaldehyde Emission Test Chamber
Product Description:
This product is suitable for the determination of formaldehyde emission from various wood-based panels, composite wood flooring and other indoor decorative materials, the constant temperature and humidity balance treatment of wood or wood-based panels, and the detection of volatile harmful gases in other building materials.
- Product Details
Implementation Standard:
ASTMD6007—02: standard test method for determination of formaldehyde concentration in wood products by small scale environment box
ENV717—1: formaldehyde emission measurement environment box method of artificial board
EN13419-1: the method for determining the release of VOCs for building products in the first part of the test environment box
Reference standard:
ASTMD5116-97: standard guide for the determination of organic release of indoor materials and products in small scale environment boxes
ASTMD6330-98: "standard operation for the determination of VOCs (deformaldehyde-formaldehyde) release in wooden panel under test conditions"
ASTMD6670-01: standard operation for measuring the release of indoor materials and VOCs in a full-scale environment box
ASTME1333—96: standard test method for determination of formaldehyde concentration and release rate in wood products by large environment box
Product characteristics:
This product is the first time that R&D institutes put forward the tracking control technology of detection environment to replace the inaccurate/accurate form technology. The precision is one order of magnitude higher than that of foreign advanced technology products, and it is in an advantageous position in the world. This product has been used in the National Wood-based Panel Quality Supervision and Inspection Center, Customs, Import and Export Quarantine Inspection Bureau, and its technical performance indicators meet the national standards.－《Formaldehyde emission limits in wood-based panels and their products for interior decoration》(GB 18580－2001)and National Environmental Marking Industry Standard 《Technical Requirements for Environmental Marking Products Artificial Wood Board》(HJBZ 37-1999).
Features:
1. Robust tracking control: Through computer program precise/accurate control, adjust temperature and humidity, control accuracy is high.
2. Data output: The temperature and humidity historical records can be consulted and printed by computer.
3. Instrument digital display: The real temperature and humidity data in the box can be read directly by the instrument.
4. Advanced heat exchanger technology: high heat transfer efficiency, low temperature gradient.
5. Cooling and heating water tank: temperature control is stable.
6. Dew/Point Temperature Adjustment of Air Humidity: The air humidity entering the box is controlled by robust tracking. The humidity is uniform and does not dew at the corresponding temperature.
7. Advanced humidity, temperature and humidity sensor: The sensor has high precision and stable performance.
8. Oil-free magnetic pump: The water circulation system adopts the American oil-free magnetic pump, and the wet air does not affect the gas detection in the tank.
9. Superior refrigerators: imported refrigerators, stable operation, long service life.
10. Low water level protection: constant temperature and dew/point water tank have low water level alarm.
11. Stainless steel inner box: the inner surface is smooth and does not adsorb formaldehyde.
12. Component combined structure: Climate box is a component combined structure, which can be successfully pushed into the room with ordinary single door.
Specification parameters:
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Project |
Performance parameter |
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Box volume |
1m³ |
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Main technical indicators |
Studio size |
850*1080*1100/550*600*680 |
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Outer case dimension |
1460*1225*1572/1100*796*1520 |
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Internal dimensions (about)mm |
w850*D990*H210（Or customized according to customer requirements） |
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Temperature and Humidity Adjustment Range |
Temperature range：+15℃～+40℃ |
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Humidity range：30%～80% RH |
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Fluctuation |
Temperature：≤0.5℃ Humidity：±2％ |
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Uniformity |
Temperature：≤1℃ |
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Temperature and humidity deviation |
Temperature：≤0.8℃ |
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Humidity：≤±2％ |
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Studio wind speed |
The wind speed in the center of the box 0.1-1 m/s.（adjustable wind speed） |
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Ambient Temperature |
0℃～35℃ |
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Air velocity |
0.1m/s～0.3m/s；accuracy≤0.05m/S |
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Air replacement rate |
0.1～1.5time/h |
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Must be able to maintain（0.1±0.05）time/h/S |
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Relative barotropic maintenance |
10±5pa（online display, recording） |
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Flow meter accuracy |
Glass Rotor Flow meter with accuracy not less than 2.5 grades |
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Closed |
When 1000Pa is over-pressurized, the leakage of gas is less than 1 x10-3 m/min or the flow difference between inlet and outlet gas is less than 1%. It is equipped with a micro-pressure sensor, which can monitor the sealing condition of the cabin in real-time according to the pressure. |
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Stabilization time |
Temperature stabilization time is less than 40 minutes, humidity stabilization time is less than 80 minutes, and equipment can run continuously for no less than 30 days. |
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Background index |
Background concentration of formaldehyde：≤0.006mg/m3 |
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Noise |
If it is less than or equal to 65 decibels, there should be no resonance sound in the door. |
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Other |
Ensure that no liquid or solid water is present in the tank. |
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Structural mode |
Four corners of the inner tank are designed with large chamfer, and the working cabin is fully welded and welded to ensure sealing performance. |
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Box body Features |
Material composition |
Outer wall material: 1.5MM cold rolled steel sheet electrostatic spraying, the surface is white paint. Inner wall material: 1.2mm SUS304 mirror stainless steel Surface finish：III D，All internal interfaces are polished Insulation material：Natural mineral wool, thickness not less than 80 mm, good insulation Sealing materials：Fluorine rubber, polytetrafluoroethylene, etc. do not release VOC organic matter Connecting Pipeline: Intake Part in Contact with Inner Cabin Need or PTFE Material, Cannot Use Organic Material All materials in the box will not adsorb and release formaldehyde and VOC. |
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Recirculating fan |
Select all-metal blade axial flow fan with oil-free bearing; install two fans at the bottom of the front and rear side (fan plate position down, fan diameter edge distance from the bottom 150 MM), air outlet from the top porous plate, circulating air to facilitate disassembly and cleaning, add large chamfer to the diamond section, do not hurt hands, easy to clean. |
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Studio |
Work chamber integrated forming, seamless welding, weld surface polishing, no dead angle, seamless |
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Hatch door |
Hinged door, multi-point compression type, adjustable clearance (single door) |
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Observation window |
Front door central position, built-in three-layer hollow glass, with heating body, with anti-condensation function; |
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Power Supply |
AC220V380V 50Hz |
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Sampling hole |
Located on the left side of the equipment, there are three air sampling points in the cabin. The sampling port is brass material, which can match the latex pipe connected to 6*9. |
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Sampler pumping speed（L/min） |
0.1～2.5 adjustable can be stabilized at 2.0L/min bracket |
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Floodlight |
The LED lamp belt is designed on the outer cabin for easy observation of the samples in the cabin. |
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Air intake control |
Flow meter needle valve, air intake uniformly released in the working chamber with a porous tube |
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Intake air purification |
Series Air Purification Device (Activated Carbon) behind Air Pump |
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Cryogen |
Environmental protection refrigerant R404a |
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Humidity control |
ROTRONIC Temperature and Humidity Sensor (Imported), Temperature 0-70 C, Humidity 0-100% RH |
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Man-machine interface |
Chinese, color LCD (7 inches) display, touch key setting |
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Indicating accuracy |
Temperature 0.1 ℃, Humidity 0.1% RH, Time 1 s |
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Display item |
Temperature, measured temperature, set humidity, measured humidity, dew/point set temperature, dew/point measured humidity, total operation time, including historical data query, real-time curve and historical data playback, fault record |
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Set item |
Working cabin temperature, working cabin humidity, dew/point temperature, working start time |
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Recording function |
Work cabin temperature, humidity, dew/point temperature; provide USB interface, you can use U disk for storage, backup |
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Data Correction |
Temperature, humidity and dew point humidity of working cabin can be corrected |
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Other |
It has the function of setting permission level to avoid user misoperation |
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Security |
Working cabin |
Overheat alarm protector |
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Refrigeration compressor |
Fan over pressure protector and overload protector |
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Grounding protection |
Safe grounding protection for structural parts, insulation resistance of electrical components and equipment housing not less than 0.5Ω·m |
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Heater |
Heater Short Circuit protector |
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Humidifier |
Water shortage protector of humidifier |
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Condenser |
Water shortage protector of condenser |
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High Quality Hardware
It adopts oil-free tetrafluoro-diaphragm bipolar air pump with high precision, positive and negative pressure output, and zero emission from the air circuit of the air pump. Provide a pure air source for the climate chamber.
The constant temperature system and dry gas tower refrigeration use high-power fluorine-free zero-emission refrigeration
compressors, which have fast refrigeration speed and noise value less than 60dB.
Accurate and Stable
Humidity control: Innovatively set up an independent humidity mixing balance system, which separates water and gas in
dehumidification and humidification, making the experimental data more accurate. Unique computerized intelligent mixing control of dry and wet gas, the humidity control accuracy can reach within 0.5%. (The first ten minutes after the first arrival is within 2%)
Quick balance: temperature and humidity quickly balance, under normal circumstances, the set value can be reached within 10-30 minutes. The balance time is more than five times faster than the dew point method, and the purity of the air entering the box is greatly improved.
The metal platinum resistance temperature sensor measures the temperature in the box with good accuracy, 0.01 degrees, and long service life.
High Security
The system is equipped with high and low temperature over-limit alarms, and various water level and water limit alarms of the constant humidity system to ensure the safe operation of the equipment. Humanized water level simulation observation interface.
The water level status is clear at a glance.
Smart and Efficient
The frequency converter system is used to accurately control the wind speed in the cabinet and the corresponding air volume and speed display. Realize adjustment control.
Set the temperature, humidity, humidification temperature, working time, gas flow and other parameters of the climate chamber through the touch screen, automatically calculate and automatically control the humidification temperature, and display temperature, humidity, time and other data in real time. Store and export data such as temperature, humidity, and time. Historical fault query, historical data playback function. Various functions such as power-on appointment booking for permission setting.
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