业主方面的(污染、瓷砖、木地板)（Owners side (pollution, tile, wood floor)）.doc

业主方面的(污染、瓷砖、木地板)（Owners side (pollution, tile, wood floor)） Owners (pollution, ceramic tile, wooden floor) 2006-11-22 01:56 | classification: the default category | : | is large and small. Its about decorating words The pollution problem of home decoration mainly focuses on three aspects: formaldehyde, radon and TDI. Before we go on to these topics, we must first understand What is the substance of these words? A, formaldehyde When it comes to formaldehyde, we need to know what formaldehyde is. Formaldehyde, molecular formula HCOH, is a colorless, irritating gas. The proportion of 0.815 (20 ℃), melting point 92 ℃, boiling point 19.5 ℃, the ignition point is about 300 ℃; Soluble in water and ethanol, strong in alkaline solution The original role. The 40 % of the formaldehyde solution is called formalin. The boiling point of this solution is 19 degrees, so it is highly volatile at room temperature and is more heated So. Formaldehyde is an important organic chemical raw material, widely used in resin synthesis, engineering plastics polyformaldehyde, pesticides, medicine, dyes and other industries, mainly As a disinfectant, it can also be used as a binder for uroto, phenolic resin, urea formaldehyde resin, synthetic resin, synthetic fiber, and engineering plastic polyformaldehyde Trimethyl-propane and other raw materials. The national security standard for formaldehyde is as follows: 1. The maximum allowable air concentration for human body is 0.08 mg/m. 2. The formaldehyde content in the solid wood composite floor is: the amount of formaldehyde released by A type solid wood composite floor is less than and equal to 9mg / 100g (9mg / 100g) ); Type B solid wood composite floor formaldehyde release is greater than 9 mg / 40 mg / 100g (9mg - 40mg / 100g) 3. The amount of formaldehyde released in man-made plates should be less than 0.20mg/m3 (0.20mg/m3); 4. The amount of formaldehyde released in the wood floor should be less than 0.12 mg/m3 (0.12 mg/m3). Main hazards of for