What is the difference between A-board and B-board?
1 thickness 2 flatness 3 formaldehyde content 4 plate density In fact, the main selection and related! The The
Class A grade B refers to the quality of the wood (density, formaldehyde content, etc.) grade. According to the corresponding standard, according to the wood of the knots, decay, insects, cracks and blunt edges (if the logs are no such defects), bending, twill (or twist) and other defects of varying degrees. The quality of the wood (density, formaldehyde content, etc.) as a class A, B and other different grades.
Mainly density, formaldehyde content and other standards. The difference between you and the easiest way is to smell!
According to the particleboard environmental protection level can be divided into the following three kinds of environmental protection level:
1. E0 level; E0 level environmental protection standard refers to the particleboard formaldehyde emission indicator is not greater than 5mg / 100g
The following are the same as the "
2. E1 level; E1 level environmental protection standard refers to the particleboard of formaldehyde emission index is not greater than 9mg / 100g
3. E2 level; E2 level environmental protection standard refers to the particleboard of formaldehyde emission indicator is not greater than 30mg / 100g
Class A grade B refers to the quality of the wood (density, formaldehyde content, etc.) grade. According to the corresponding standard, according to the wood of the knots, decay, insects, cracks and blunt edges (if the logs are no such defects), bending, twill (or twist) and other defects of varying degrees. The quality of the wood (density, formaldehyde content, etc.) as a class A, B and other different grades
