Formaldehyde cannot be expanded arbitrarily, and it must be related to the indoor environment-related testing standards issued by the country. Recently, many homes, offices, etc. are nearing the end of the renovation, the indoor smell is a headache, how many customers to consult the formaldehyde is considered excessive? In order to allow everyone to fully understand the concept of excessive formaldehyde, this article for everyone to answer in detail.
How much formaldehyde exceeds the standard The formaldehyde detection standards released by the country in relation to the indoor environment mainly include:
1. According to the "PRC Contract Law", "Indoor Air Quality Standard" (GB/T18883-2002), and "Civil Construction Project Indoor Environmental Pollution Control Regulations" GB 50325-2010 (2013 Edition): Indoor Air Formaldehyde The maximum allowable concentration is 0.1 mg/m3.
2. The national standard of the People's Republic of China "solid wood composite floor" provides:
The formaldehyde emission of Class A solid wood composite flooring is less than or equal to 9 mg/100 g;
Class B solid wood floor formaldehyde emission is equal to 9 mg -40 mg/100 g.
3. The "Technical Requirements for National Environmental Labeling Products - Artificial Wood Panels" provides:
The amount of formaldehyde released from the artificial board should be less than 0.20 mg/m3;
Formaldehyde emission from wooden floors should be less than 0.12 mg/m3.
4. The national furniture standard GB5296.2004 stipulates that if the formaldehyde emission exceeds the specified standard of 1.5 mg/L, the relevant manufacturer will be fined 50% to 3 times of sales. Will also be subject to fraudulent punishment.
Excessive formaldehyde hazard
National standard formaldehyde content is not higher than 0.1mg/m3.
The standard range of formaldehyde content exceeded:
Formaldehyde Pollution Degree of formaldehyde Excessive symptoms Mild pollution
0.1 mg/m3--0.3mg/m3
Colds, decreased immunity, severe throat and throat soreness when getting up in the morning
0.4 mg/m3--0.8 mg/m3
Cough, respiratory discomfort, indoor flowers and plants that are easily dead, etc.
0.9 mg/m3--1.0 mg/m3
Asthma, susceptibility to death from leukemia, lung cancer, etc. = 3.0 mg/m3
Once inhaled, people will instantly die of symptoms of excessive formaldehyde levels
1. When you get up early in the morning, you feel bored, nauseous, and even dizzy.
2. Family members are often susceptible to colds;
3. Do not smoke, but also rarely touch the smoking environment, but often feel uncomfortable throat, foreign body, poor breathing;
4. Children often cough, sneeze, and weakened immunity. Children in newly renovated homes do not want to go back;
5. Family members often have skin allergies and other problems, and they are grouped.
6. There is a common disease in the family, and after leaving the environment, the symptoms have changed significantly and improved;
7. Newly-married couples are infertile for a long time and cannot find out the reasons;
8. Under normal circumstances, pregnant women found fetal malformations;
9. After a new move or new decoration, the indoor plants are not easy to live, and the leaves tend to yellow and wither. In particular, some plants with strong vitality are also difficult to grow normally. Domestic pet cats, dogs, and even tropical fish died inexplicably, and so did neighbors.
10. The newly-renovated home or newly-purchased home has irritating odors such as pungent and harsh eyes, and it still smells for more than one year.
Formaldehyde exceeding double:
The National Standard of the People's Republic of China, "Hygiene Standard for Formaldehyde in Indoor Air," stipulates that the maximum allowable concentration of formaldehyde in the air in the room is 0.1 mg/m3. 1 times the formaldehyde is more than the standard concentration of formaldehyde in the room. This concentration of formaldehyde is lightly contaminated, so we can choose to have a professional formaldehyde treatment company handle it. If it exceeds the standard by three times or even four times, formaldehyde treatment is also very necessary.
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