Formaldehyde Climate Chamber Formaldehyde Sampling Environment Chamber Formaldehyde Release Detection Climate Chamber Performance Stability

Formaldehyde emission testing environmental chamber is a relatively stable detection method, and 1m has been modified under the new national standard GB18580-2017 ³ The climate box test method has been changed to quoted. The principle of this method is to place a sample with a surface area of 1m2 into a climate chamber with temperature, relative humidity, air flow rate, and air displacement rate controlled under specified conditions. Volatile organic compounds (formaldehyde) are released from the sample and mixed with the air inside the box. The air inside the box is collected, and the formaldehyde concentration in the air is tested to calculate the formaldehyde release rate of the sample. Under GB18580-2017, the perforated extraction method and the dryer method are mentioned, but the (9-11) L dryer method and perforated extraction method are only used for production quality control, and the detected formaldehyde release cannot be used as the final result. This test chamber must be used to evaluate the formaldehyde release of artificial boards.

With the continuous development of the economy and social progress, people are increasingly realizing the importance of coordinated development between humans and the entire living environment and the necessity of environmental protection. Indoor decoration materials (such as particle board, fiberboard, plywood, flooring, etc.) may release formaldehyde gas due to production process requirements such as bonding, veneer, and coating. Long term exposure to formaldehyde gas exceeding the standard amount can cause harm to human health. Therefore, a cubic meter formaldehyde detection climate box is required to test the product.

Since 1994, China has successively carried out environmental label certification work in industries such as chemical, household appliances, building materials, textiles, and other industries. In October 1999, the green (environmental label products) artificial board standard was issued and implemented. In January 2002, national mandatory standards such as GB18580-2001 "Indoor Decoration and Decoration Materials - Formaldehyde Release Limits in Artificial Panels and Their Products" were issued and implemented, which clearly stipulated the emission limits of formaldehyde, The amount of formaldehyde released from wood-based panels is an important indicator for measuring the quality of wood-based panel products.

Volatile organic compounds (formaldehyde) are released from the sample and mixed with the air inside the box. The air inside the box is collected, and the formaldehyde concentration in the air is tested to calculate the formaldehyde release rate of the sample. Under GB18580-2017, the perforated extraction method and the dryer method are mentioned, but the (9-11) L dryer method and perforated extraction method are only used for production quality control, and the detected formaldehyde release cannot be used as the final result. This test chamber must be used to evaluate the formaldehyde release of artificial boards.

In China, the name formaldehyde has gradually become known and understood by people, and corresponding standards for formaldehyde emissions have also been introduced. The current formaldehyde climate box is mainly applicable to the determination of formaldehyde emissions from various indoor decorative materials such as artificial boards and composite wooden floors, as well as the constant temperature and humidity balance treatment of wood or artificial boards. It can also be used for the detection of volatile harmful gases in other building materials.