业主方面的(污染、瓷砖、木地板)（Owner side (pollution, tiles, wood flooring)）.doc

业主方面的(污染、瓷砖、木地板)（Owner side (pollution, tiles, wood flooring)） The owners (pollution, tile, wood flooring) 2006-11-22 01:02:56| classification: classification | Tags: | default font and subscriptions. About decoration pollution Home improvement pollution problems, mainly concentrated in three areas: formaldehyde, radon, TDI. Before talking about these topics, first of all we do What is the essential meaning of these words?. Formaldehyde Speaking of formaldehyde, we have to know exactly what is formaldehyde. Formaldehyde, formula HCOH, is a colorless, irritating gas. proportion 0.815 (-20 C), the melting point of -92 DEG C, the boiling point of -19.5 deg.c, burning about 300 DEG C; soluble in water and ethanol, in alkaline solution is also strong Primary role. Its 40% formaldehyde water solution is called formalin, the boiling point of this solution is 19 degrees, so it is very volatile at room temperature What. Formaldehyde is an important organic chemical raw material. It is widely used in the fields of resin synthesis, engineering plastics, POM, pesticide, medicine, dyestuff and so on Used as a disinfectant, also can be used as adhesive for Urotropine, phenolic resin, urea formaldehyde resin, synthetic resin, synthetic fiber, POM And three hydroxymethyl propane and other raw materials. The national standard for formaldehyde safety is so specified: 1, for human health, the maximum allowable air content is 0.08mg / m. 2, solid wood composite floor formaldehyde content is: a class of solid wood composite floor formaldehyde emissions less than and equal to 9 mg / 100 grams (9mg / 100g) B); wood flooring formaldehyde to release a quantity greater than 9 mg - 40 mg / 100 grams (9mg40mg / 100g) 3. The formaldehyde emission in artificial board shall be less than 0.20 mg / cubic meter (0.20mg / m3); 4, wood floor formaldehyde emissions should be less than 0.12 mg / cubic meter (0.12mg / m3). Main hazards of formaldehyde: Indoor content of 01 mg / cubic meter, there are pec