On December 10th, 2001, the national administration of quality supervision, general inspection bureau has issued the<< formaldehyde releasing limit for interior decoration decorate material and man-made board and its related products >>The mandatory national standard is (GB 18580 -2001), the standard demand that indoor decoration use man-made board and its products (including the floor panels, etc.) in the formaldehyde release amount of index test methods and inspection rules.
Release quantity, is an important indicator of modern decoration housing and construction, Green building materials standards stipulated by the international environmental groups is not more than 8 mg / 100 g, we should choose those brand environmental man-made plank with formaldehyde releasing under a quantity of a standard -0.50 mg/m3 as far as possible .
The formaldehyde release of the man-made board in a closed desiccator in correspond to a solution of formaldehyde in quantitative water weight weight ratio of mg/L (see the unit, to know is to use dryer method to detect) take some sample size a certain amount of man-made board piece, after 24 days, infrared spectrophotometer, applicable objects: plywood, joinery board Require the use of 40 L desiccator method, namely the E0 grade products of formaldehyde release limit of 0.5 mg/L, up to the standard floor is classified as class A product (i.e., health and environmental protection products) our company plywood from Tang Feng with a low formaldehyde release limit of 0.3 mg/L (even lower that national standard of 0.5 g/L )