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Alkanes, aromatic hydrocarbons, alkenes, halocarbons, esters, aldehydes, ketones and others.
Volatile Organic Compounds (VOCs) act as heterogeneous pollutants in indoor air, due to their low concentration, but many types.
Indoor TVOC concentration is usually between 0.2mg/m3 and 2mg/m3. When the indoor VOC concentration is between 0.16mg/m3 and 0.3mg/m3, it is for people.
Talking about the Application of TVOC and Huafeng Clean Air Products in the Laboratory
First, TVOC naming
Chinese name: Total volatile organic compounds
English abbreviation: TVOC
Indoor air quality researchers often refer to all indoor organic gaseous substances they sample and analyze as VOCs, which are Volatile
Organic Compound is the abbreviation of the first letter of the three words. The various measured VOCs are collectively referred to as total volatile organic compounds TVOC.
(Total Volatile Organic Compounds).
Second, TVOC classification
[Edit this paragraph] TVOC's main ingredients
Hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbons and nitrogen hydrocarbons, including: benzene series, organic chlorides, Freon series, organic ketones, amines, alcohols,
Ethers, esters, acids and petroleum hydrazine compounds.
Third, the danger of TVOC
Generally, they are not indicated separately, and the total amount is represented by TVOC. Indoor building and decorative materials are the main source of TVOC in the air. research
The study shows that even if the content of individual VOC in indoor air is lower than its limit, the mixture of various VOCs exists and interacts with it.
Increase the intensity of the hazard. TVOC exhibits toxicity and irritation, can cause imbalance of immune level and affect central nervous system function.
Yes, symptoms such as dizziness, headache, lethargy, weakness, chest tightness, etc., may also affect the digestive system, loss of appetite, nausea, etc.
In severe cases, it can damage the liver and hematopoietic system and even cause death.
Fourth, indoor TVOC can not be ignored
Physical health is basically harmless.
Prevent VOC damage,
Mainly from the source to prevent non-environmental building materials;
Secondly, the ventilation is often ventilated to accelerate the release of VOC;
Third, an air purifier with activated carbon is installed if necessary.
Fourth, it is best to verify that the VOC does not exceed the standard.
V. TVOC detection
1. Gas Chromatograph: In laboratory air testing, it is a laboratory analytical instrument for detecting benzene, toluene, xylene and TVOC;
The amount of chemical gas in the laboratory is high and the accuracy is high.
2. PID detector: It is a special instrument for indoor air detection. It is a test instrument for on-site sampling and measurement of TVOC, which can detect indoorization.
Whether the gas concentration exceeds the standard.
3. Huafeng online prosecution system: It adopts PID calibration of American RAE Company with high accuracy, fast response and strong stability.
6. Application of Huafeng Clean Air Technology Products in the Laboratory
Huafeng Environmental Protection Technology Co., Ltd. independently develops online detection technology to accurately predict and test the TVOC value in our laboratory. Huafeng Jingqi type fume hood and clean gas type medicine cabinet in entry and exit, environmental monitoring station, disease control, quality inspection institute, drug inspection office, pharmaceutical factory, university, research institute, testing center, hospital, military factory, food factory, Chemical plants, electronics factories and other units and enterprises have been widely used, the customer response is very good, and hope for further cooperation.