VOC Test Chamber for Environmental Testing

Voc test chamber method is mainly used for the determination of free formaldehyde in consumer products such as wood products, furniture, flooring, carpets, footwear, and building decoration materials. Specimens with known surface area are placed in a test chamber where temperature, humidity, air flow rate and air exchange rate are controlled at certain values. Formaldehyde is released from the specimens and mixes with the air in the chamber. Air samples are periodically drawn from the chamber and passed through a water-filled scrubber to measure the concentration of formaldehyde absorbed in the water. The concentration of formaldehyde in the air of the test chamber is calculated based on the concentration of formaldehyde in the scrubber and the volume of air drawn, expressed in milligrams per cubic meter (mg/m³). Sampling is carried out periodically until the concentration of formaldehyde in the test chamber reaches a steady state.

Voc test chamber Meet the standards：

1、ASTM D5116-97 "Standard Guide for Organic Emissions from Indoor Materials and Products in Small Chambers"

2、ASTM D6330-98 "Standard Practice for Testing Volatile Organic Compounds (VOCs) Emission from Wood-Based Panels under Specified Conditions (excluding Formaldehyde)"

3、ASTM D6670-01 "Standard Practice for Testing Volatile Organic Compounds (VOCs) Emission from Indoor Materials and Products"

4、E1333-96 "Standard Test Method for Formaldehyde Concentration and Emission Rate from Wood Products Using a Test Chamber"

5、ASTM D6007-02 "Standard Test Method for Formaldehyde Concentration in Emissions from Wood Products"

6、ENV 13419-1 "Determination of Volatile Organic Compounds (VOCs) Emissions from Building Products - Part 1: Chamber Method for Release Testing"

7、Formaldehyde Emission Testing ENV 717-1 "Measurement of Formaldehyde Emission from Wood-Based Panels - Chamber Method"

8、VOC Emission Testing: Appendix A (Normative Appendix) of GB 18580-2001 "Limit of Harmful Substances Release from Indoor Decoration and Renovation Materials - Carpets, Carpet Backings and Carpet Adhesives"

9、Formaldehyde Chamber Testing GB 18580-2001 "Limit of Formaldehyde Release from Indoor Decoration and Renovation Materials - Wood-Based Panels and Their Products" Section 6.4: Chamber Method for Measuring Formaldehyde Release from Wood-Based Panels

10、GB 18584-2001 (Standard for Formaldehyde Emission from Interior Decoration and Renovation)

11、VDA 276 Climate Chamber Method for VOC Testing of Automotive Interior Components

12、HJ 566-2010 "Technical Requirements for Environmental Labeling Products - Wooden Toys"

13、HJ 571-2010 "Technical Requirements for Environmental Labeling Products - Wood-Based Panels and Their Products"

Voc test chamber Performance Features:

1、Advanced heat exchanger technology: High heat exchange efficiency and small temperature gradient.

2、Cold and hot counter-flow temperature control water tank: Stable temperature control.

3、Imported humidity and temperature sensors: High sensor accuracy and stable performance.

4、High-quality refrigeration unit: Imported chiller, stable operation and long service life.

5、Protective devices: Both the climate chamber and dew point water tank have high and low temperature alarm protection measures as well as high and low water level alarms.

6、Protective measures: The compressor also has overheat, overcurrent, and overpressure protection measures, ensuring safe and reliable operation of the entire machine.

7、Stainless steel inner chamber: The inner cavity of the constant temperature chamber is made of stainless steel, with a smooth surface that does not condense water and does not adsorb formaldehyde, ensuring testing accuracy.

8、The constant temperature chamber is made of hard foam material, and the chamber door is equipped with a silicone rubber sealing strip, providing good insulation and sealing performance. The chamber is equipped with a forced air circulation device (forming a circulating air flow) to ensure uniform temperature and humidity inside the chamber.

Voc test chamber Safety device

1、Work cabin: Over-temperature alarm protection

2、Refrigeration compressor: Fan overpressure protection, overload protection

3、Grounding protection: Safety grounding protection for structural components. The insulation

resistance of electrical components and equipment enclosures shall not be less than 0.5 megohms.

4、Heater: Short-circuit protection for heater

5、Humidifier: Water shortage protection for humidifier

6、Condenser: Condenser water shortage protection

No.	Parameter Name	Technical Specification
1	Test Chamber Volume	(1 ± 0.02) m³
2	Temperature	Range: (15～40)℃; Accuracy: ±0.5℃
3	Relative Humidity	Range: (30～80)%RH; Accuracy: ±3%R.H.
4	Air Exchange Rate	Range: 0.2 m³～2 m³/h (0.2～2 air changes/hour); Accuracy: ±1% of ventilation rate
5	Surface Air Velocity	Range: (0.1～0.3) m/s; Accuracy: ≤0.05 m/s
6	Air Tightness	Leakage Rate: ≤1×10⁻³ m³/min at 1KPa differential pressure
7	Background Concentration	Formaldehyde: ＜0.006 mg/m³; TVOC: ＜0.05 mg/m³; Individual VOC: ＜0.005 mg/m³
8	Structural Design	Advanced jacketed structure (internationally adopted design)

1、What are the features of the formaldehyde VOC test chamber?
The formaldehyde VOC test chamber features high-precision detection, multi-functional applications, and a user-friendly operation interface.

2、What should be noted when using a formaldehyde VOC test chamber?
Ensure that the equipment is operated under strict conditions and calibrated regularly to guarantee the accuracy of the detection.

3、What is the difference between formaldehyde and VOCs?
Formaldehyde is a specific type of volatile organic compound (VOC), while VOCs refer to all volatile substances in general.

4、How long is the service life of the test chamber?
The test chambers we design have excellent durability and stability and can last for 8 to 15 years under normal usage conditions.

5、How to maintain equipment?
Regularly inspect all components, keep them clean, and follow the maintenance suggestions in the user manual.

6、How to operate the data management function?
The test chamber is equipped with a data management system. Users can view and export data through the display screen.

7、What is the price range of the equipment?
The specific price will vary depending on the model and functions you choose. Please contact us for detailed information.

8、Which industries are suitable for the formaldehyde VOC test chamber?
Our test chamber is suitable for the construction, automotive manufacturing, furniture production, electrical appliances and environmental protection industries.