How to determine whether there is formaldehyde and formaldehyde at home

There is no need to test at home, there must be formaldehyde, and there are trace amounts of formaldehyde in the human body, let alone at home. However, to determine the specific value, professional testing instruments are required, and hundreds of handheld detectors cannot be used to detect formaldehyde at all, and basically cannot be used.

Details can be "Shanghai supervision" and "Internet celebrity detector", you can see the survey conducted by the Shanghai Municipal Supervision Bureau in 2019, and none of the 41 batches of handheld detectors accumulated by major e-commerce platforms are qualified, and these are the top products sold by mainstream e-commerce platforms.

The formaldehyde self-test box can determine whether there is formaldehyde, but the error is very large, basically it can only be used to determine the direction, can not be used as a standard, and even the reference value is only partial, if you want to accurately determine the formaldehyde value, three methods are recommended.

First of all, the best way to determine is to find a professional testing agency with CMA qualification, the test report issued by them has legal effect, is relatively authoritative and accurate, but the cost is higher, and the CMA testing agency is only responsible for testing and not responsible for governance, that is to say, if you want to remove formaldehyde, you have to spend another money to govern;

Secondly, you can find a professional treatment company to detect pollution, and the professional treatment company uses professional equipment, and the numerical error of the CMA qualified testing company is very small, and the management company can serve as both professional testing and professional governance, but the test report does not have legal effect, and is only used to determine its own governance effect.

In fact, the steps of formaldehyde detection are not very complicated, in strict accordance with the standard process, you can also test the instruments and reagents by yourself, but professional equipment is a must, and the professional equipment is cheaper about 4000 yuan, not counting the money of the reagent, so it is not worth buying, and it is recommended to rent.

How to determine whether there is formaldehyde and formaldehyde at homeIn fact, many indoor formaldehyde in the home will exceed the standard, whether it is a new house or a house that has lived in a few years, because the release life of formaldehyde can be as long as 3-15 years, so how to detect indoor formaldehyde?

First of all, seal the test space for 1 hour before testing, then open the absorption box in the formaldehyde detection box, introduce all the white bottle reagents into the absorption box, cover the absorption box, and shake gently until the internal solution is completely dissolved. Then open the absorption box and place it in the test space for 30 minutes, when placing the absorption box 80-150 cm from the ground.

After 30 minutes, pour the brown reagent completely into the absorption box, then shake it gently, and let it stand for 10 minutes. Compared with the color card, the reagent is yellow and basically does not contain formaldehyde; Yellow-green yellowish also belongs to the range that does not exceed the standard; It is yellow-green and greenish, and the excess is not serious; Serious green exceedance; The blue color is seriously exceeded.

The first is human perception, such as the following situations can be judged to exceed the formaldehyde standard.

1. When I get up every morning, I feel suffocated, nauseous, or even dizzy;

2. There are often people in the family who catch colds; And it's not easy to get good.

3. In newly moved or newly renovated houses, indoor plants are not easy to survive, and the leaves are easy to turn yellow and wither;

4. After the new move, domestic cats, dogs and even tropical fish die inexplicably;

The second is the detection data. Before moving into the new house, you must do an indoor air test, and the test can only be moved in, if you exceed the standard and are in a hurry to move in, it is recommended to find a professional formaldehyde removal product treatment standard before moving in.

The best way is to do a formaldehyde test, which can be done with test strips and instruments.

On the Internet, Pinduo sells it, it is not expensive, just test it.

One: If it is judged that indoor formaldehyde exceeds the standard?

According to the data of the Indoor Environmental Monitoring Association, the formaldehyde excess rate of new houses is as high as more than 90, we will use a variety of decorative materials in the decoration, even if most of the materials selected are environmentally friendly, but it is also inevitable that the superposition effect of pollution, the key is that many families now have a perception of formaldehyde in the smell of whether there is a smell at home, in fact, this is a very unreliable way to identify formaldehyde, formaldehyde only exceeds the standard by more than 5 times to have a clear smell, so no taste does not mean that formaldehyde does not exceed the standard.

So, in daily life, do we have other ways to judge whether formaldehyde at home exceeds the standard? In fact, it is very simple to know if there is pollution in your home, and if there is formaldehyde pollution in your home, there will definitely be signs:

1. **Allergies.

**Feedback to the environment is relatively rapid, especially for some sensitive people, if there is formaldehyde pollution at home, after a long period of contact with **, it is easy to have some **inflammation, mainly manifested as itching, rash and other symptoms. If a family member has similar symptoms, it must be paid attention to.

2. The green plants at home inexplicably withered.

In order to purify the air or be beautiful, some green plants will be placed in the new house, they are very direct to the judgment of the bad indoor air, if the formaldehyde at home exceeds the standard, more or less will affect the growth of green plants, if it is found that the leaves of green plants at home turn yellow or even wither for no reason, then most likely it is caused by excessive formaldehyde pollution.

1. The most direct way is to feel through the sense of smell, if you can smell a pungent smell after entering the room, or even feel unwell, it means that there is a high probability of excessive formaldehyde in our house.

2. If no one smokes at home, but the throat will feel uncomfortable, sometimes living at home will feel chest tightness and shortness of breath, itching or**worse, these may also have a large amount of formaldehyde around us.

3. According to the survival response of animals and plants to determine whether there is formaldehyde, if the plants at home wither and die for a period of time, and the mortality rate is still very high after normal watering, greening is not easy to survive, what to raise and die, and the pets who live at home have no appetite, can not be alive, and the response is very slow, which means that the formaldehyde in the room where we live may have exceeded the standard.

4. We can also buy a box for detecting formaldehyde online, the formaldehyde box has a contrast color card measurement, but it is not very accurate, only a simple reference, there may be a huge difference in fact, if we find that the formaldehyde on the detection box we bought from the Internet is slightly exceeded, it means that the indoor formaldehyde is likely to be seriously exceeded, if you are really not at ease, you can find some professional formaldehyde testing centers to come to the door to test.

Before testing, seal the test space for 1 hour, open the absorption box in the formaldehyde detection box, pour the white bottle reagent into the absorption box, cover the absorption box, and wait for the internal solution to be completely dissolved. Open the absorption box and place it in the space to be tested for 30 minutes, when placing the absorption box 80-150 cm from the ground.

Formaldehyde has a particularly pungent smell. Slight formaldehyde can only be detected by a testing company.

1. Analyze decoration materials

After the decoration of the new house, you can first analyze the decoration materials used in the interior decoration, whether the purchase is non-environmentally friendly materials, and classify all the decoration materials, so as to have a general understanding of the degree of indoor formaldehyde pollution. The selection of environmentally friendly materials during decoration can reduce the pollution of harmful substances such as formaldehyde in the indoor air, but it cannot guarantee that there is no possibility of excessive formaldehyde in the room.

2. Observe houseplants

Indoors to ensure that the plant growth needs sufficient light, water, fertilizer, put some plants in the newly renovated new house, although the plants also have a certain air pollution adsorption capacity, but in the case of serious air pollution will not grow well, and even wilt and die.

3. Adverse symptoms in the human body

It is not uncommon for people to have different degrees of discomfort after moving into the new house, such as the most itchy and swollen people, and then the throat is dry and hoarse; Severe symptoms such as eye discomfort and easy fatigue.

Emergency measures for formaldehyde poisoning

1. Immediately remove the patient from the scene, and oxygen should be administered if necessary.

2. Change contaminated clothes in time, and give anti-allergies** to those with allergies.

3. After the mucous membrane is in contact, rinse with a large amount of water first, and then wash with 2% sodium bicarbonate or soapy water.

Formaldehyde test boxes are probably the best option for testing formaldehyde at home, and this method is simple and economical to operate. If the indoor formaldehyde detection exceeds the standard, the following methods are also more suitable for home aldehyde removal

1. Open window ventilation is currently a more reliable method of removing formaldehyde, simple and convenient to use, as long as the window is opened, there will be a steady stream of air pouring into the room, and the indoor air containing formaldehyde will be discharged to the outdoors, but due to weather reasons, opening the window to remove aldehyde will have certain drawbacks when it is windy and rainy, so open the window ventilation must be optimistic about the weather forecast!

5. 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.

6. The release rate of formaldehyde mainly depends on two factors, one is temperature, and the other is humidity, so we can use this characteristic of formaldehyde to 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.

If you want to know whether formaldehyde exceeds the standard, this is not difficult, there are formaldehyde detectors, as well as professional formaldehyde companies, you can choose, once you find that formaldehyde exceeds the standard, you should immediately do a good job of removing aldehyde, the following is recommended for you several well-received aldehyde removal methods, you can choose the best, I hope to help you.

1.As long as the local air quality meets the standard, other pollutants will not be introduced, and it is easy to use and low cost, but it needs to be insisted on for a long time, because the release life of formaldehyde is long, and it is easy to repeat the situation when the ventilation is not smooth.

2.The use of green plants to purify formaldehyde is a very promising way to remove formaldehyde, plants will adsorb a part of formaldehyde during photosynthesis, but the absorption is extremely small, and it is recommended as an auxiliary method when removing formaldehyde.

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.

4.There are many brands of air purifiers, mixed with fish and dragons, ordinary air purifiers do not have a good effect of removing formaldehyde, when purchasing, we should look for products with formaldehyde removal function, you get what you pay for, and it is not recommended to buy less than 1000 yuan when purchasing.

5.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.

Formaldehyde is very harmful to the human body, and it is recommended to use a combination of methods when dealing with it, so as to stabilize the formaldehyde concentration in a safe range faster!

According to the monitoring and inspection method recommended in the national standard, the AHMT spectrophotometry method is used, which cannot obtain measurement results in the field. In recent years, the United States, the United Kingdom and Japan have successively developed portable formaldehyde measuring instruments for on-site measurement, which can meet the measurement requirements of the indicators proposed in the national standard.

1) Measuring principle.

The instrument uses the well-known chemical combustion pool sensor of Lion company, when formaldehyde is sucked into the sensor, the current signal obtained by the reaction on the surface of the platinum catalyst is proportional to the concentration of formaldehyde. The peak time resolution function is used to make the concentration of formaldehyde more selective and more accurate.

2) Instrument holding point:

detection range; Accuracy: 10, Resolution: 3) Calibration and inspection of the instrument.

The instrument is equipped with formaldehyde standards, which are regularly checked and recalibrated, and the measurement accuracy will be guaranteed within 6 months after calibration.

2 Measurement Method:

1) The sealing time of the measured room before the measurement and the selection conditions of the location of the measuring point are the same as those of the radon measurement;

2) During the measurement, the time-peak reading of the formaldehyde measurement window set by the instrument shows the concentration of aldehyde substances, and if the time-peak reading of the formaldehyde measurement window set by the instrument is exceeded, it indicates that there are interfering substances, at this time, the same measurement location can be selected for multiple measurements.

Prevention and control methods: I want to know whether there is formaldehyde at home, if it is new furniture, as long as it is non-solid wood, the formaldehyde content will exceed the standard, the only thing to do is to carry out preliminary treatment of formaldehyde. Every time I buy furniture I have a habit, between the doors will put the furniture in the storage room alone with the whole Shibang to remove formaldehyde and then put it in, after all, the health of the family is important, and then the furniture has been bought without formaldehyde, remind you that the formaldehyde release cycle is ten years, don't think that nothing is happening now, 90% of leukemia in China is because of formaldehyde pollution, but everyone does not understand why moving to a new home has a high probability of leukemia, the reason is formaldehyde.