Appearance Quality:
1. Whether the surface paint is glossy or not, whether the paint film is full, whether there are indentations, sand marks, or pin particles.
2. Whether the surface material has obvious defects.
3, the surface should not be rot, dead, wormholes, cracks and other defects.
4. Whether the product's specification and dimension tolerance (length, width, and thickness) are consistent with the box identification.
5, whether the product's rake and slot splicing is smooth and tight.
Intrinsic quality:
1, formaldehyde release limit: the national standard GB 18580-2001 regulations, dryer method ≤ 1.5mg/L, climate chamber method ≤ 0.12mg/m3. Excessive formaldehyde emission is harmful to human health.
2. Water content: The national standard value is 5~14%.
3. Impregnation and stripping: The cumulative length of any glue layer on each side does not exceed 1/3 of the length of the glue layer (not more than 3mm).
4, the surface wear ≤ 0.08g/100r, the paint film is not thoroughly polished.
Three trees paint paint formaldehyde
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