E0 E1 E2 F4 what is it? Environmental protection standard formaldehyde emission
E0 E1 E2 F4 what is it? Environmental protection standard formaldehyde emission
E0 E1 E2 F4 (F assumes level) are representative of formaldehyde Market board released a limited level of environmental standards now (such as particleboard, plywood, MDF, formaldehyde content released many).
E0 E1 E2 F assumes a standard and a brief overview:
The original E1, E2 of the two standard produced in Germany, later cited as a European standard; in July 1, 2002 China promulgated and implemented the “interior decoration decoration materials harmful substances limited 10 mandatory national standards”, also is the E1 level, E2 level, China’s current national standard for the highest level of E1, a lot of furniture on the market now to achieve this standard;
The E0 standard was produced in Japan, is the most stringent environmental standards, equivalent to Europe’s highest standard E (1 / 2);
“F 4” originated in Japan and the laws and regulations, is Japan’s “F, you can feel the certification standard”, is Japan’s highest standard floor health level, more is considered to be the healthiest international standard floor. If in accordance with the usual E1 and E0 standards, then the “F3 star” is equivalent to the national standard E0, it is recommended to limit the use area, “F 4” is much higher than the “F3 star”, no restrictions on the use of the area.
Some people say that E0 is the enterprise standard, E1 is an international standard, E2 is the national standard, but also without reason, the general domestic standards are a little lower than the European standard. E0 and F assumes that there is only Japan, Finland two countries enforce, on the other countries are spontaneous standards, rather than mandatory standards. So it is true that there is no E0 standard in the European market.
In the national drinking water hygiene standards in our country, advance the implementation of formaldehyde residue limit value of up to 0.9 mg/L, which means that the limited value of E0 as the highest standards of indoor air, has the better health and safety standards related to food, drinking water and other products. E0 level of health standards is the world’s indoor air formaldehyde pollution minimum standards, even beyond the level of food safety. The requirements are so strict that the new national standards only refer to it as a recommended standard for plate manufacturers.
E0 E1 E2 F numerical method assumes standard and qualified:
E0 formaldehyde release is less than 0.5mg/L, the E0 board can be directly used for indoor plate.
E1 formaldehyde release is less than 1.5mg/L, the E1 board can be directly used for indoor plate.
E2 formaldehyde release is less than 5.0mg/L, must allow for interior finishes treatment.
F assumes level formaldehyde emissions less than or equal to 0.3mg/L, F assumes no restrictions on the use of the area.
Perforation extraction method:
E0 formaldehyde release is less than 3mg/100 grams, E0 plate can be directly used for indoor plate.
E1 formaldehyde release is less than 9mg/100 grams, E1 plate can be directly used for indoor plate.
E2 formaldehyde release is less than 30mg/100 grams, must allow for interior finishes treatment.
F assumes level formaldehyde emissions less than 1.8mg/100 grams, F assumes no restrictions on the use of the area.
At present, particleboard, MDF is used in most of the two methods, but generally speaking, when the content refers to content in desiccator method, that we have the product is less than 1.5mg/L.
In addition, by the way, the United States there is a standard P1, P2 to represent, P1 equivalent to E1, P2 close to E0.
Some people say that the detection of standard GB1850-2001, whether the veneer, different methods of detection results have been compared in detail, the following conclusions:
1, the detection method for the extraction and drying method. Perforation extraction experimental results are accurate, but the process is complex; drying method has the advantages of simple operation, but the experimental apparatus, experimental operation or experimental conditions will bring great impact on the experimental results, and the formaldehyde emission is far lower than the results measured by extraction method.
2, before and after the veneer, due to the different detection methods, the results vary greatly. Before and after the perforation extraction should be veneer has little effect on the extraction with liquid extraction process of formaldehyde in the specimen has not much influence; after the veneer drying experiment of specimen greatly reduce the formaldehyde emission, should be due to the release of formaldehyde substrate surface due to narrow, visible veneer help to prevent the release of formaldehyde in the substrate.
Thus, good finishes and edge treatment are beneficial to the environment, so the furniture not only look at the price and style.
The content of 1.5mg/L E0 E1 E2 F assumes that what is the standard?
Although L is a unit of volume, but definitely not a decaliter sheet mean. According to the standard, according to detection of formaldehyde release is “GB/T 17657-1999”, is a method of desiccator method, specific operating procedures are boring, no details, explained by popular words, GB limited mean in the 20 + 2 C, 10 separate 150mmX50mm furniture plates 24 hours of release the formaldehyde dissolved in 300ml water, the concentration of formaldehyde in the solution of 300ml should not exceed 1.5mg/L. This limit is only related to the area of the furniture plate, the establishment of indoor environmental protection by conversion, roughly 20 + + / C, a square furniture plate formaldehyde emissions of not more than 6 mg per hour, even if the standard of 24 mg
How to know that the E0 level plate:
First, of course, is to look at the quality inspection report, but generally only the plate factory will do this report, only the people who can see into the plate, in general, the last real users rarely see. Now there are few furniture factory in the absence of the requirements of the guests to take the initiative to do formaldehyde detection.
Second, from the price resolution, E0 grade sheet, regardless of the production equipment, production process and the quality of the adhesive are very high. Only an improvement in adhesive, an increase of about 25% of the cost. Currently on the market price of E0 products in 160 yuan. The domestic real ability to produce E0 plate manufacturers have a few? Only a handful, or the use of quality materials into the board. If the same price A Jun said E0, B Jun said E1, it certainly will not be E0 level. Because the E0 level is much higher than the E1 requirements rather than a little bit, regardless of whether the E1 will be sold, but at least that is the price of E0 he can not sell. Will be a penny of goods, do not cheap;
Purchase furniture matters needing attention:
(1) although the higher the level of formaldehyde is less, but also need to pay attention to the quantity of use, not because of the standards of environmental protection use unlimited, because the housing space is fixed, while the amount of overlap will also exceed the standard of environmental protection.
(2) because the plank of E0 class itself does not contain adhesive and moisture-proof agent, so its relative moisture resistance and toughness will be decreased, so little for in the kitchen, bathrooms and other damp environment.
(3) must be clear in the purchase of formaldehyde emission is only one of the important indicators to strengthen the furniture, not the only product standards, should also consider other indicators.
(4) whether it is necessary to pursue a more strict “F assumes”? Wu Shengfu China director of Forestry Industry Association marketing department believes that the decoration of the walls, ceiling, cabinets, furniture may produce formaldehyde, in the life of clothing also contains formaldehyde, therefore, simply the pursuit of one of environmental protection and can not solve the problem of indoor formaldehyde superposition. Although the floor, furniture, paint separate tests are in line with national standards, but put together is often prone to excessive formaldehyde accumulation.