I.Product Application

The 1m³Formaldehyde Emission Environmental Test Chamber/VOC Environmental Test Chamber is a new-era formaldehyde emission testing chamber developed based on national standard GB18580-2017,international standards ASTM D6007-2,EN717-1,and ISO16000-9.It is specifically designed for testing formaldehyde emission levels in furniture,wood-based panels,automotive interior parts,and building decoration materials.The equipment employs several new patented technologies,including magnetic field sealing,resulting in test results that more closely resemble real-world conditions.Its realistic and reliable performance reaches the level of similar international equipment.

1m³Formaldehyde Emission Environmental Test Chamber/VOC Environmental Test Chamber Product Overview:This product conforms to the standards of GB18580-2001"Formaldehyde Emission from Wood-based Panels and Their Products",GB17657-2013"Test Methods for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels",GB18587-2001"Limits of Hazardous Substance Emissions from Carpets,Carpet Linings and Carpet Adhesives for Interior Decoration and Renovation Materials",GB50325—2020"Code for Indoor Environmental Pollution Control of Civil Building Engineering",ENV717-1"Environmental Chamber Method for Measuring Formaldehyde Emission from Wood-based Panels",and ASTM D6007—02"Standard Test Method for Determining Formaldehyde Concentration in Gases Emitted from Wood Products in Small-Scale Environmental Chambers".

II.Reference Standards:

ASTM E1333-96

Standard Test Method for Determining Formaldehyde Concentrations in Air and Emission Rates from Wood Products Using a Large Chamber

ASTM D6007-02

Standard Test Method for Determining Formaldehyde Concentrations in Air from Wood Products Using a Small-Scale Chamber

EN 717-1

Wood-based panels—Determination of formaldehyde release—Part 1:Formaldehyde emission by the chamber method

GB/T 17657-2013

Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels

GB 18587-2001

Indoor decorating and refurbishing materials—Carpets,carpet cushions and carpet adhesives—Limits of harmful substances emissions

LY/T 1980-2011

1 m³climate chamber for determination of formaldehyde emission

GB 18580-2017

Indoor decorating and refurbishing materials—Limits of formaldehyde emission from wood-based panels and their products

ISO 12460-1:2007

Wood-based panels—Determination of formaldehyde release—Part 1:Formaldehyde emission by the chamber method

LY/T 1612-2004

1 m³climate chamber for determination of formaldehyde emission

III.Performance Characteristics:

1.Advanced Heat Exchanger Technology:High heat exchange efficiency and small temperature gradient;

2.Cold and Heat Counterbalanced Temperature-Regulating Water Tank:Stable temperature control;

3.Imported Humidity and Temperature Sensors:High sensor accuracy and stable performance;

4.High-Quality Refrigeration Unit:Imported refrigeration unit,stable operation and long service life;

5.Protection measures:The compressor also has overheat,overcurrent,and overpressure protection measures,ensuring safe and reliable operation of the entire machine;

6.Stainless steel inner chamber:The inner cavity of the constant temperature chamber with a test chamber volume of(1±0.03)m3 is made of stainless steel,with a smooth surface that does not condense and does not absorb formaldehyde,ensuring the accuracy of the test.

7.The constant temperature chamber is made of rigid foam material,and the door uses a silicone rubber sealing strip,providing excellent thermal insulation and sealing performance.The chamber is equipped with a forced air circulation system(creating a circulating airflow)to ensure uniform temperature and humidity inside.

IV.External Operating Conditions

The VOC climate chamber should meet the following environmental requirements:

1.Operating temperature range:15°C to 35°C

Operating humidity range:≤85％RH

2.Air pressure:80kpa-106kpa

3.Power supply voltage:220V±22V

4.Power supply frequency:50Hz±0.5Hz

5.There should be no strong vibrations or corrosive gases around the instrument and equipment,and other cold or heat sources should be avoided.

V.Technical Specifications

1.Temperature:Setpoint 23℃,(customizable)Temperature control accuracy±0.3℃,fluctuation rate≤±0.5℃,uniformity≤1

2.Humidity:Setpoint 50%RH,(customizable)Humidity control accuracy±1%RH,fluctuation rate≤±2%RH,uniformity≤±2

3.Air Exchange Rate:Setpoint 1/h,deviation≤0.03/h

4.Pressure difference:Slight positive pressure 10Pa±5%

5.Air velocity:0.1m/s～0.3m/s,accuracy≤0.05m/s

6.Adsorption rate:Adsorption rate in the test chamber≤20%

7.Insulation resistance:The insulation resistance between the live parts of the climate chamber and the chamber shell shall not be less than 20 megohms.

8.Withstand Voltage Strength:When the heater terminals and control system of the climate chamber are open-circuited,the chamber shell should be able to withstand a withstand voltage test of 1500V AC 50Hz for 1 minute.

9.Air tightness:The hatch is self-sealing.The airtightness meets the following requirement:at a positive pressure of 10 kPa(gauge pressure),the air leakage rate inside the cabin is less than 10⁻³*1 m³/min;

10.Inner box material:304 mirror stainless steel plate with seamless welding.The welded areas and surrounding areas are polished and free from deformation.The inner wall is flat and smooth with uniform color and no exposed bottom,delamination,bubbling,or scratches.

11.Outer casing material:A3 color steel plate with electrostatic spraying,the coating is flat and smooth,the color is uniform,and there are no defects such as exposed base,delamination,blistering,blemishes,or deep scratches.The cabin and doors are effectively thermally insulated,using double-layer sandwich insulation of polyurethane and mineral wool,with an insulation layer thickness of not less than 50mm and a thermal conductivity of not more than 0.01W/(m·K).The joints between the inner wall panels are seamlessly welded.

12.Air Exchange Device:The cabin is equipped with a device capable of continuously controlling the air exchange rate(dry air flow meter,electronic air flow metering device).The air inlet and outlet are located on different inner walls at different heights to ensure that the air flow supplied to the cabin meets the corresponding standard requirements.

13.Air circulation(mixing)device:A fan is installed in the chamber to enhance air mixing;the air velocity near the surface of the specimen is between 0.1 m/s and 0.3 m/s.

14.Gas Cleaning System:Employing multi-stage purification(including high-temperature catalytic oxidation VOC purification components,low-temperature cooling VOC purification components,refrigerated dryer for water and oil removal purification components,dust particle filter purification system,formaldehyde filter,and high-efficiency layered activated carbon adsorption filtration system,etc.).After treatment,the pollutant concentration requirements in the gas are:TVOC concentration<0.01mg/m3,any VOC<0.002mg/m3,and formaldehyde content<0.006mg/m3.

15.Monitoring Equipment:A touchscreen control panel serves as the user interface for operating the equipment.It allows direct setting and digital display of internal temperature,relative humidity,temperature compensation,and operating time.It also automatically records and plots operating curves,and data can be transferred to a USB flash drive for storage.

VI.Standard Configuration:

1.Main unit(including sampler)1

2.Sampling bottles 3

3.Silicone tubing 1

4.Fuse 1(Spare)

5.Relay 1(Spare)

6.Test fixture 1

7.Small funnel 1

8.Water pipes 2

9.Hose clamps 2

10.Instruction manual 1

11.Certificate of conformity 1