What is the standard of formaldehyde stipulated by the state, and what is the standard value of form

The state stipulates the national standard for the release of formaldehyde in the home:

The national standard of the People's Republic of China "Hygienic Standards for Formaldehyde in Indoor Air" stipulates that the maximum allowable concentration of formaldehyde in indoor air is milligrams of cubic meters.

The national standard of the People's Republic of China "Solid Wood Flooring" stipulates that the formaldehyde emission of Class A solid wood composite flooring is less than and equal to 9 mg 100 grams; The formaldehyde emission of class B parquet is equal to 9 mg - 40 mg 100 grams.

The technical requirements for national environmental labeling products - artificial wood boards stipulate that the formaldehyde emission in man-made boards should be less than milligrams of cubic meters; The amount of formaldehyde released in wood flooring should be less than milligrams of cubic meters.

1. GB T18883-2002 "Indoor Air Quality Standard" stipulates that the maximum allowable concentration of formaldehyde in indoor air is 0 08 mg cubic meters (0 08mg m3).

2. GB50325-2012 "Code for the Control of Environmental Pollutants in Civil Construction Projects" stipulates that the maximum allowable concentration of formaldehyde in the air is 0 10 mg cubic meters (0 10mg m3).

Normal national regulations in a confined space, the actual measurement value of formaldehyde should be less than per cubic meter, if it exceeds this range, formaldehyde exceeds the standard, this is unqualified!

The scope of mild formaldehyde pollution is reached, and mild formaldehyde pollution is often easier to ignore, because the content of formaldehyde in the room exceeds the standard and is low, and the body will not have much reaction at the beginning of this environment, and symptoms such as dizziness, cough, and chest tightness will appear after a long time.

The range of severe formaldehyde pollution is reached, and compared with mild formaldehyde pollution, the symptoms are naturally more intense, generally within 24 hours to 48 hours, there will be dyspnea, chest tightness and shortness of breath, sore throat, coughing up blood, persistent low-grade fever, general fatigue and other symptoms.

When decorating, many people will choose to use green building materials that meet the environmental protection indicators. However, due to the limited space, the pollution released by decoration materials, furniture, etc. will be superimposed, and the formaldehyde concentration released will still exceed the safety standard, and then the indoor formaldehyde will produce a lot, and all of them will cause great harm after being superimposed, so that people suffer from various diseases.

Answer: There are three national standards for formaldehyde. The national standard of the People's Republic of China, the health standard for formaldehyde in indoor air stipulates that the maximum allowable concentration of formaldehyde in indoor air is per cubic meter.

The national standard of the People's Republic of China for parquet stipulates: Class A parquet formaldehyde emission 9mg 100g; The release of formaldehyde from class B parquet is equal to 9mg 100g-40mg 100g. Technical requirements for national environmental labeling products:

Artificial wood flooring stipulates that the amount of formaldehyde released in the man-made board should be, and the amount of formaldehyde released in the wood board should be. For formaldehyde exceeding the standard, the aeration method and the adsorption method of activated carbon should also be considered for treatment. First of all, you should choose a professional formaldehyde detection agency to detect formaldehyde, if it does rise, you should actively use the above two methods to remove formaldehyde, so as not to cause harm to family members, and serious can also cause leukemia.

At present, the national standard requires that the formaldehyde concentration content in the indoor living environment should be smaller, and excessive formaldehyde will cause damage to the human body. Therefore, when buying furniture and interior decoration, the materials should be selected as much as possible to meet the national testing standards.

The formaldehyde content of the indoor air mg m3 is normal habitationNowadays, many families have excessive indoor formaldehyde, but they are still in an unconscious state, which is very dangerous.

1. The most common way to remove formaldehyde indoors is to open windows for ventilation, and this method has almost no cost. But the ventilation method also has disadvantages, first of all, the location of the house should be good to achieve the effect of ventilation, and secondly, the formaldehyde in the decoration materials is in a state of continuous release, and it is impossible to completely remove formaldehyde through window ventilation, it can only play an auxiliary role in removing formaldehyde.

2. Putting some green plants at home can also effectively remove odors, especially pothos, spider plants, aloe vera, monstera, cactus, ivy, etc., which can effectively absorb harmful gases. In addition, large plants such as the Ping An tree and the camphor tree, which are more popular on the market, can release a fresh gas on their own, which makes people feel happy, and is also more suitable for removing the smell of new furniture.

3. Using activated carbon is also a good choice. The surface of activated carbon is rich in pores, which can adsorb indoor odors, and also has a certain effect on pollution control, but the activated carbon treatment capacity is limited, and it will produce saturation after about half a month of use, and it is impossible to continue to work.

4. Ruishi is a purification product favored by the decoration family in recent years, compared with other formaldehyde removal products, Ruishi itself has many pores, with the dual function of absorption and decomposition, and the speed of formaldehyde removal is also fast. Its unique decomposition function can save the time of drying, and it is more convenient to use, because it is a pure natural ore, it will be safer to use.

5. Muguanglan uses the strong reproduction, penetration and secretase ability of microorganisms to capture and thoroughly degrade formaldehyde, benzene, ammonia, TVOC and other harmful substances in the substrate, and finally decompose organic matter into H2O and CO2, which is an emerging technology, which has the advantages of active absorption, efficient decomposition, no secondary pollution, etc., and does not have too many requirements for indoor light and environment, mild in nature and easy to use.

6. Most of the air purifiers can isolate the particles of different diameters in the room through the filter, which can quickly achieve the purification effect, but the decoration pollutants are gaseous pollutants, and the diameter is far smaller than the particle pollutants, therefore, most air purifiers are colorless to formaldehyde, benzene and other harmful substances, in contrast, the unique sepiolite decomposition layer of the odor machine can effectively remove indoor formaldehyde, benzene, TVOC and other decoration pollutants, and its cost is low, easy to use, and can effectively ensure indoor air quality.

There are many ways to remove formaldehyde, only choose the right method, in order to ensure health, and a variety of methods are used together, formaldehyde will be removed faster, ventilation + Muguang blue + Ruishi, several methods are collocated, can improve indoor environmental pollution faster, Ruishi is a natural ore, not a regular shape of particles, some businesses will sell regular shape granular items, beware of counterfeiting, must go to the official website to buy.

The indoor formaldehyde concentration requirement is less than or equal to milligrams per cubic meter, that is, the formaldehyde concentration in each cubic meter of air shall not exceed milligrams. Formaldehyde has always been a nightmare for new families, with more and more health accidents caused by formaldehyde, people's awareness of formaldehyde is becoming more and more intense. In fact, we can use the following methods to deal with formaldehyde in new house decoration, saving time and effort.

1. Opening windows for ventilation may be the easiest and fastest way to remove formaldehyde, but the most important premise of ventilation to remove formaldehyde is to maintain ventilation. For example, in summer and winter, when the air conditioner is turned on, the doors and windows are closed or there is no wind outside, the effect of removing formaldehyde cannot be achieved.

2. Plants can remove formaldehyde, although formaldehyde can be removed, but the amount of formaldehyde absorbed by it is very limited, and when the indoor concentration is high, if the plant simply relies on the adsorption of formaldehyde, its dosage is very large.

3. Activated carbon is a traditional physical adsorption material, which has been well received in the treatment of indoor and outdoor pollution, its specific surface area is large, and it has a strong adsorption capacity, but its adsorption capacity is limited, and it does not have the function of decomposition.

5. We all know that the easiest way to remove formaldehyde is to ventilate, and the family with poor room ventilation can accelerate the indoor and outdoor air flow through the fan, accelerate the discharge of formaldehyde-containing air, which can effectively reduce the concentration of indoor pollutants, but it can only treat the symptoms but not the root cause, and this method may not be practical in the season when you need to keep warm.

6. We all know that formaldehyde is volatile at high temperature, and we can use some heating equipment to increase the temperature at home a lot, so that a large amount of formaldehyde gas can be volatilized, and then formaldehyde can be removed by opening windows for ventilation. Repeated operation a few times, you can remove most of the formaldehyde in the home, but we must pay attention to safety when using heating equipment to avoid fire

How normal is the standard range of formaldehyde? After the house is renovated, the formaldehyde content in the house must be paid attention to!

for: E1 class, dryer method), climate chamber method, used in arbitration).

The inspection standards should be the same, but the standards are different when the testing methods are different.

If you encounter formaldehyde exceeding the standard, you don't have to worry too much, use Lotting stone to remove formaldehyde, there is no secondary pollution, it is still very environmentally friendly, orchids, cacti, aloe vera and other plants are suitable for indoor placement, ** cheap, and beautify the environment. In the case of occupancy, 1 pot of 2 square meters can be placed in the bedroom and living room, which will have some effect, but it cannot be removed from the roots.

The first standard is the GBT 18883-2002 Indoor Air Quality Standard, which is issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, the Ministry of Health and the State Environmental Protection Administration. This standard stipulates that the national standard for indoor formaldehyde concentration is.

The second standard is GB 50325-2010 Code for Indoor Environmental Pollution Control of Civil Construction Projects, jointly issued by the Ministry of Housing and Urban-Rural Development of the People's Republic of China and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China.

This standard stipulates that the formaldehyde concentration standard for a class of civil buildings is the tvoc concentration.

The formaldehyde concentration standard for Class II civil buildings is TVOC concentration.

Use the following methods to remove formaldehyde:

1) Air purifier: It has a certain adsorption effect on indoor formaldehyde and other pollutants.

2) Coconut carbon activated carbon: containing graphene and SOD cellulase, it can adsorb and lock harmful molecules such as formaldehyde and toluene in large quantities, and decompose into harmless gases, which is an excellent formaldehyde removal material.

3) Luephyllin scavenger: plant extract, safe and harmless, no secondary pollution.

The national standard for indoor formaldehyde is that higher than this value needs to be treated, especially in the newly renovated new house, there are more materials that release formaldehyde, and there will be the possibility of formaldehyde exceeding the standard when the ventilation is slightly poor, and it is difficult to completely remove it in a short time, which is also the reason why the treatment of formaldehyde will occur repeatedly, so how should we deal with it, and recommend several long-term effective methods to everyone.

1. Wise Stone.

It is currently a relatively cost-effective formaldehyde removal product, its advantage is that it can be decomposed into water and carbon dioxide at the same time of absorbing formaldehyde and harmless substances to the human body, because of its decomposition characteristics, so that it will not appear adsorption saturation and indoor secondary pollution, and suitable for various types of environmental use. In addition, its removal rate is also dozens of times that of traditional adsorbent materials. When choosing, it is important to note that it is a gray ore with an irregular shape and is not a round particle.

2. Wind fan.

The fan can play the role of "inducing air" to accelerate the discharge of the gas containing free formaldehyde in the room to the outdoors, this method is only useful for the house with poor ventilation, and has little effect on the house with good ventilation effect.

3. Activated charcoal.

Activated carbon has the function of adsorbing formaldehyde and other harmful substances, but activated carbon does not have the function of decomposition, so the adsorption capacity is limited, easy to saturate, and needs to be replaced frequently, otherwise it will become a new pollution source to emit harmful substances to the outside, resulting in indoor secondary pollution.

4. Formaldehyde remover.

Formaldehyde scavenger actively adsorbs, captures and reacts to formaldehyde free molecules, once the reaction generates non-toxic polymer compounds, so as to achieve the purpose of quickly and effectively eliminating formaldehyde, but it itself is a high concentration of chemicals, although it is harmless to the human body, but it is also recommended that you pay attention to safety when using it, and use it as little as possible

Fifth, high temperature.

The release rate of formaldehyde mainly depends on two factors, one is temperature, the other is humidity, so we can use this characteristic of formaldehyde, use heaters, humidifiers, etc. to keep the room in a state of high temperature and high humidity, and then we can cooperate with ventilation or adsorption materials to absorb the formaldehyde that has been released at home, this method is mainly to treat the latent formaldehyde in the home, and the effect is very good.

In fact, in addition to formaldehyde, everyone wants to control formaldehyde simply, but the process is generally very bumpy, so choosing the right method to remove formaldehyde is the key.

What is the standard value of formaldehyde detection?

According to the current "Indoor Air Quality Standard" GB18883, the indoor formaldehyde concentration is less than one mu to be qualified.

Indoor formaldehyde pollution is divided into long-term formaldehyde pollution and short-term formaldehyde pollution. At present, there are many ways to remove formaldehyde, but most of the formaldehyde methods can only remove short-term formaldehyde pollution, and the formaldehyde pollution in furniture and wood-based panels with a release period of up to 3-15 years is not effective, so many formaldehyde removal methods will appear in the first situation.

The three-step method of formaldehyde removal can be used to monitor whether the formaldehyde removal method is effective for a long time.

1. Choose furniture with independent space and use formaldehyde detection box for pollution source detection;

2. Use the corresponding indoor pollution control method to remove formaldehyde;

3. Detect the pollution source inside the furniture again and compare the formaldehyde concentration before and after.

Note: Because the formaldehyde release cycle in furniture is as long as 3-15 years, it is necessary to carry out long-term follow-up monitoring to avoid encountering ** situation.