So, what meaning is standard of environmental protection of class of the E1 that uses in manufacturer conduct propaganda, E0? The reporter consults the data is informed, at present in the world, grade of formaldehyde set limit to is divided into E2, E1, E0 3 level, namely E2 ≤ 5.0mg/L, e1 ≤ 1.5mg/L, e0 ≤ 0.5mg/L.

Data makes clear, the formaldehyde content of drinking water is 0.9mg/L, that is to say, the formaldehyde content of E0 standard is less than drinking water. And Japan " F4 star " standard (≤ 0.3mg/L) it is the requirement of accepted environmental protection is the strictest environmental protection standard on international. Standard of E1 class environmental protection is the healthy level with mandatory country, it is compulsive those who execute " safe level line " .

In the national level of our country, should belong to GB18584-2001 about the quality standard of formaldehyde content " interior decoration decorates furniture of material, wood in harmful material set limit to " . The reporter consults discovery, this standard stipulates formaldehyde releases a quantity to answer ≤ 1.5mg/L. "ready made decking flower boxes,sell wood plastic composite,resurfacer outside deck,veranda vinyl fencing slats"