Many people's cognition of formaldehyde may only stay in its function: in all kinds of home decoration building materials, almost all contain a certain amount of formaldehyde, its main function is to bond, harden and fix, antiseptic and insect proof. It is often ignored that formaldehyde is also the "invisible killer" in the room. It will be slowly released from the home decoration materials and pollute the indoor air.
How to determine whether the environment we live in is healthy? The best way is to check the formaldehyde in the indoor air.
1、 Method of formaldehyde detection
1. Formaldehyde self test box
Formaldehyde self-test box is the most simple and objective formaldehyde test method, which can be tested without asking people to do it by themselves.
The formaldehyde self-test box was developed by China Institute of inspection and quarantine, and was developed according to the national standard formaldehyde detection and sampling "Phenol Reagent Colorimetry". Therefore, from the perspective of the principle of formaldehyde self-test box, it not only has scientific basis, but also conforms to the chemical inspection method stipulated by the national standard.
Advantages of formaldehyde self-test box:
1. Low price, simple operation and convenient purchase.
2. It is more practical and scientific to detect the emission source of formaldehyde in the room.
3. Formaldehyde self-test box can be used to verify the effect of formaldehyde removal products, long-term monitoring, to ensure the safety of indoor air environment.
2. Professional testing unit
There are two types of professional testing institutions: one is a professional research institution or a business unit under the management of the government; the other is a private testing company. Professional tests are multiple and multi-point tests.
The entrusted professional testing agency needs to make an appointment in advance. After the air is sampled on site, it will be taken back to the laboratory for testing. It will wait at least 2-3 working days for the results to be obtained. The price is relatively high. In theory, the test results are the most accurate. Only human factors such as on-site operation errors will affect the accuracy of the test results.
In addition, there is also a kind of formaldehyde detection instrument on the market - formaldehyde detector (formaldehyde speedometer), which can be bought on a certain treasure and has a large price span. However, the detection principle of formaldehyde speedometer is not in the national standard at present, so it is not discussed.
Little knowledge: the body's response to different concentrations of formaldehyde
American experts have shown that the main effects of formaldehyde on human health are abnormal smell, stimulation, allergy, abnormal lung function, abnormal liver function, abnormal immune function, etc.
When indoor formaldehyde reaches a certain concentration, it will produce certain stimulation to skin and mucous membrane, and also cause red eye itching, throat discomfort, sneezing, chest tightness and asthma.
When the formaldehyde concentration is too high, it will cause acute formaldehyde poisoning, sore throat, dyspnea, allergic dermatitis and pulmonary edema.
When exposed to low concentration formaldehyde for a long time, it will cause chronic formaldehyde poisoning, headache and dizziness, decreased immunity, neurasthenia, mental depression, etc., and eventually lead to respiratory dysfunction and liver cell damage or even cancer.
Because children are in the growing stage, with unstable hematopoiesis function and poor hematopoiesis reserve capacity, the impact of excessive formaldehyde on children's or adolescents' hematopoiesis organs may be more serious than that of adults, and it is more likely to cause leukemia and other diseases.
2、 Classification of formaldehyde detection
1. Indoor air detection
The purpose of indoor air detection is to determine whether the indoor air is polluted by formaldehyde, whether it meets the safety standards, and whether it can be checked in safely.
2. Formaldehyde emission source detection
"Formaldehyde pollution emission source detection", also referred to as "pollution source detection", is proposed by Mr. Chen Xiaopeng, deputy director of the national indoor environment purification guidance center. It refers to the detection of formaldehyde concentration in furniture made of wood-based panel, such as wardrobe, bed box, drawer, etc., which is a direct and effective method to determine whether it is a formaldehyde pollution emission source.
Professional formaldehyde testing institutions do not provide pollution source testing, but can use formaldehyde self-test box to test the interior of furniture suspected of pollution source.
It is very important to detect formaldehyde emission source in furniture
Within half a year after decoration, about 80% of formaldehyde is released from wood-based panels used in furniture and decoration; over half a year after decoration, almost 100% of formaldehyde is released from wood-based panels used in furniture and decoration.
The above is the details of Jinan formaldehyde removal company. If you want to know more, please pay attention to the official website http://www.kqjczl.cn