Views:0 Author:Site Editor Publish Time: 2020-12-10 Origin:Site
E0 is the amount of formaldehyde released less than or equal to 0.5 mg/l.
E1 is the amount of formaldehyde released less than or equal to 9.0mg/100g. 18X more than E0.
E2 is the amount of formaldehyde released less than or equal to 30.0mg/100g. 60X more than E0
Harm of formaldehyde:
Formaldehyde is a colorless, harmful gas that can cause cancer in the nose, mouth, throat, skin and digestive tract. And the formaldehyde in the residence basically comes from all sorts of board, furniture and paint wait for adornment material.
According to national mandatory standard, after closing door window 1 hour, in every cubic metre indoor air, formaldehyde release quantity must not exceed 0.08 milligram; If it reaches 0.1-2.0 mg, 50% of normal people can smell bad odor. Reach 2.0-5.0mg, eyes, trachea will be strongly stimulated, sneezing, cough and other symptoms; More than 10 mg, dyspnea; Reaching more than 50 milligrams can cause serious diseases such as pneumonia and even death.
If the decoration of the user is reasonable, environmental protection, and under the condition of constant ventilation and ventilation, indoor formaldehyde can be generally reduced to the permitted level in about 20 days.