What is the standard for indoor formaldehyde content and how to judge it

Formaldehyde removal method refers to an air treatment method that decomposes formaldehyde pollutants into carbon dioxide and water at room temperature and releases them into the air in a molecular state through a series of measures such as green plant adsorption, air purification, photosynthetic oxidation, and physical ventilation. If the above content is not comprehensive enough, you can also communicate with Guangzhou Yousu Environmental Protection Technology. Guangzhou Yousu Environmental Protection Technology Co., Ltd. is a high-tech enterprise specializing in the field of indoor environmental health, a chain organization integrating scientific research, production, sales and engineering, with reliable technical strength and professional team, welcome friends to come to consult!

There are two indoor formaldehyde detection values, one is GB 50325-2010 (this standard is suitable for offices), and the other is GB T 18883---2002 (suitable for families) suitable for family living. Personally, it is recommended that you find SGS, according to the requirements of GB T18883, carry the gas sampling pump to the location specified by the customer, adsorb formaldehyde in the air with a formaldehyde sampling tube, and then bring the formaldehyde sampling tube back to the laboratory for accurate analysis with a liquid chromatograph, and the results cannot be directly produced on site.

Formaldehyde standards are for your reference.

Indoor air quality" standard formulated by the Ministry of Health, testing requirements closed 12, indoor formaldehyde concentration is higher; This standard refers to the World Health Organization's indoor formaldehyde concentration limit standard, which is a low standard for living environment health.

Code for Indoor Environmental Pollution Control of Civil Construction Projects" formulated by the Ministry of Construction, requiring that the indoor formaldehyde concentration of 1 indoor formaldehyde be higher than that? 3;It is applicable to the mandatory control specifications of environmental pollutants before the delivery of construction projects.

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 man-made panels should be

The amount of formaldehyde released from the board should:

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.

In our country, the average household has a value between 35 and 75.

According to the indicators given by the national air health standards, if the value is less than 35, it can mean that the air quality is very good and there is no harm to the human body, but if the value is between 35 and 75, it means that the air quality is good and suitable for human life, but in many seriously polluted areas, there will be more than 75 or even higher, which indicates that the environment has been seriously polluted.

In modern home life, we inevitably need to use paint when decorating a new house. There is formaldehyde gas in many paints, which is harmful to the human body, some friends want to know what the national standard for indoor formaldehyde content is, and the following is a brief introduction for you, hoping to help.

China's "Indoor Air Quality Standards" stipulates that indoor formaldehyde content should be less than or equal to milligrams per cubic meter; The Code for the Control of Indoor Environmental Pollution in Civil Buildings stipulates that the indoor formaldehyde content should be less than or equal to milligrams per cubic meter. Therefore, after the decoration is completed, you should wait for the indoor formaldehyde content to meet the above standards before moving in.

2. How to remove formaldehyde indoors.

1. First of all, within a period of time after the decoration of the new house, we should not be in a hurry to move in, and all the doors and windows of the new house should be opened every day for ventilation, so that formaldehyde can be emitted outside, and after a month or two, we can rest assured that we can move in, especially families with children and pregnant women.

2. We can also buy some potted plants in the new house to effectively remove formaldehyde. The role of plants is great, there are many benefits to the human body, placed in the new house, not only can absorb formaldehyde, but also can play a decorative role, make the room beautiful, it can be said to kill two birds with one stone.

3. Now there is activated carbon on the market that is specially used to remove formaldehyde, and its effect is relatively obvious. We can buy activated charcoal and place it in every corner of our home. However, it should be noted that the ability of activated carbon to absorb formaldehyde is limited, and when the limit is reached, if the activated carbon is not cleaned up in time and kept in the room, the formaldehyde absorbed in it may cause secondary damage to the room.

It is best to put the activated carbon in the sun after half a month of use, and then you can continue to recycle without worrying about safety.

Summary: The above is for you to introduce the content of the national standard for indoor formaldehyde content, I hope it can be helpful to you, it is recommended to live in a month or two after the decoration of the new house, and wait for the formaldehyde gas to be emitted before moving in. If you want to know more, please pay attention to Qeeka Home.

Legal analysis: The Code for the Control of Indoor Environmental Pollution in Civil Buildings stipulates that it is less than or equal to milligrams per cubic meter, and the Indoor Air Quality Standards stipulate that it is less than or equal to milligrams per cubic meter. Excessive indoor formaldehyde content will cause harm to human health, in order to remove indoor formaldehyde, it is recommended to use ventilation method, adsorption method and negative ion method.

Legal basis: Civil Code of the People's Republic of China

Article 110:Natural persons enjoy rights such as the rights to life, body, health, name, likeness, reputation, honor, privacy, and marital autonomy.

Legal persons and unincorporated organizations enjoy the right to name, reputation and honor.

Article 1002:Natural persons enjoy the right to life. The safety and dignity of natural persons are protected by law. The right to life of others must not be infringed upon by any organization or individual.

Article 1004: Natural persons enjoy the right to health. The physical and mental health of natural persons is protected by law. The right to health of others must not be infringed upon by any organization or individual.

The national standard is below.

Step 1: Open the windows for ventilation. The decoration has just ended, the smell of the new house is serious, and the pollution must be several times, or even dozens of times the standard, so the initial one to two weeks, what means do not play a big role, the best way is to open the window for a long time to ventilate, through air convection, the pollutants in the indoor air are discharged to the outside.

It can also be assisted by an electric fan to accelerate the convection of indoor and outdoor air.

Step 2: Use nano live ore for air purification. After effective ventilation, indoor air pollution has been greatly reduced, so the focus should be shifted to solving the source of indoor pollutant release, so as to ensure continuous purification of harmful gases.

Step 3: Adopt the plant decontamination method. Indoor suitable planting of flower plants are: spider plant (including orchid grass), cactus (cactus family), aloe vera, etc., such plants have a certain purifying effect.

There are two standards for indoor formaldehyde concentration in China:One isGB T18883-2002 standardOne isGB50325-2020 standard,The 18883 standard is less than or equal to air, while the GB50325 standard is less than or equal to air, of which the 18883 standard is more suitable for home improvement environment.

In the above two criteria,GB T18883 standardIt is aimed at "the formaldehyde concentration contained in the air in various indoor environments that have been put into use", that is, the formaldehyde concentration standard of indoor air in various indoor places, including residential buildings, business premises, and office environments, and the home improvement environment is also listed. It regulates the formaldehyde concentration per 1 cubic meter of air in the indoor environmentNot more than milligrams.

The 50325 standard is formulated for "civil construction projects", that is, the formaldehyde concentration standard that the indoor environment should meet when the developer delivers the house after the completion of the building. A class of civil buildings,That is, civil construction projects such as residences, hospitals, elderly buildings, kindergartens, school classrooms, etc., formaldehydeMust not exceedClass II civil buildings, that is, office buildings, shops, hotels, cultural and entertainment venues, bookstores, libraries, exhibition halls, gymnasiums and other places, formaldehyde concentrationMust not exceed

Helped you, the answer is as follows, for reference.

The indoor air quality standard is formulated by the Ministry of Health, and the detection requirements are closed for 12 hours, and the indoor formaldehyde concentration is not higher. This standard refers to the World Health Organization's limit standard for indoor formaldehyde concentration, which is the minimum standard for human settlements and health. The Code for the Control of Indoor Environmental Pollution in Civil Construction Projects is formulated by the Ministry of Construction, which requires that it be closed for 1 hour and the indoor formaldehyde concentration is not higher than that, which is applicable to the mandatory control of environmental pollutants before the delivery of construction projects.

The standard value of indoor formaldehyde is as follows: national regulations for residential buildings: formaldehyde, benzene, ammonia, tvoc.

The above data is measured from 12 hours in an enclosed space. It is recommended that the treatment of formaldehyde should be solved by maintaining ventilation.

Decoration in addition to formaldehyde, first of all, we must understand the existence of formaldehyde, formaldehyde exists in all kinds of building materials, the pollution is that formaldehyde is released into the air by the human body, now all kinds of formaldehyde removal of the Bichang method is to remove formaldehyde in the air, and all kinds of formaldehyde materials are time-sensitive, in more than ten years you can not keep the replacement, not to mention the huge cost, time can not be guaranteed, and the formaldehyde in building materials is not emitted at one time, but released little by little, the longest time can be more than ten years, Therefore, all kinds of formaldehyde removal are not once and for all, and they cannot solve the problem, so the best solution is to maintain ventilation.

The National Standard of the People's Republic of China "Parquet Flooring" stipulates:

Class A parquet formaldehyde emission less than or equal to 9 mg 100 grams;

The formaldehyde emission of class B parquet is equal to 9 mg - 40 mg 100 grams.

Technical Requirements for National Environmental Labeling Products - Artificial Wood Panels" stipulates:

The formaldehyde emission in man-made panels should be less than milligrams of cubic meters; The amount of formaldehyde released in wood flooring should be less than milligrams of cubic meters.

The National Standard of the People's Republic of China "Hygienic Standards for Formaldehyde in Indoor Air" stipulates:

The maximum allowable concentration of formaldehyde in indoor air is milligrams of cubic meters.

The European E1 environmental protection standard is: formaldehyde content 9mg 100g.

The E0 environmental protection standard is: formaldehyde content 3mg 100g.

However, with China's current E0 environmental protection standard: formaldehyde content 5mg grade is 15mg 100g.

According to the national standard, the indoor formaldehyde standard range is not more than milligrams of formaldehyde content per cubic meter of air, once it exceeds the human body will be harmed, today I will tell you a few ways to remove aldehyde.

1. Nano crystalline carbon: This type of product has a higher aldehyde removal efficiency than activated carbon, about 30g of nanocrystalline carbon can purify one cubic meter of formaldehyde, but it needs to be replaced in time to avoid saturation.

2. Ventilation method: the simplest and most user-friendly way, only need to open the window to dilute the formaldehyde concentration in the outside air.

3. Formaldehyde scavenger: You can use "Oulvwei formaldehyde scavenger", this product has a high removal efficiency of formaldehyde, and with the two major formaldehyde nemesis of amino acids and photocatalysts, it can achieve all-weather uninterrupted aldehyde removal work.