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Anonymous users2024-01-24This is not necessarily, depending on what material, natural materials generally contain less formaldehyde, which does not mean that there is no formaldehyde, because many furniture are made into finished products with paint and glue, and paint and glue contain formaldehyde. Wood-based panels are divided into three grades according to formaldehyde content, E0, E1, E2, E3 four grades, of which E0 is the highest grade with the least formaldehyde content, E3 is the lowest generally not used, common furniture boards are, natural wood, wood-based panels are divided into: particleboard, MDF, multi-layer board, woodworking board and so on.
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Anonymous users2024-01-23Formaldehyde is usually a colorless gas with a pungent odor. Soluble in water and ether, the concentration of aqueous solution can reach up to 55%, and it can be miscible with organic solvents such as ethanol and acetone in any proportion, and is insoluble in petroleum ether.
1. The standard of the Republic of China "Solid Wood Parquet" stipulates that the formaldehyde emission of Class A solid wood parquet is less than or equal to 9 mg 100 grams; Class B parquet formaldehyde emission is equal to 9 mg - 40 mg 100 grams. >>>More
According to the national mandatory standard, after closing the doors and windows for 1 hour, the formaldehyde emission per cubic meter of indoor air shall not be greater than milligrams; If it reaches milligrams, 50% of normal people can smell the odor; When it reaches milligrams, the eyes and trachea will be strongly irritated, and symptoms such as sneezing and coughing will appear; up to 10 mg or more, difficulty breathing; Reaching more than 50 mg can cause critical illness such as pneumonia and even death.
The following is the formaldehyde standard for your reference. >>>More
Formaldehyde content standards for general furniture.
1. The national standard of the People's Republic of China "Solid Wood Parquet" stipulates that the formaldehyde emission of Class A solid wood parquet is less than and equal to 9 mg 100 grams; Class B parquet formaldehyde emission is equal to 9 mg - 40 mg 100 grams. >>>More
Generally, E1 level environmental protection standard solid wood particle board has low formaldehyde content, high bearing capacity, high nail holding force, and the cabinet made is better than other multi-layer boards.