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Introduction to VOC testing

Volatile Organic Compounds (Volatile Organic Compounds, referred to as "VOC") is an important reason to affect the air quality in the car. VOC mainly includes alkanes, alkenes, aromatic hydrocarbons, aldehydes or ketones, etc., has a special pungent odor, and some have been classified as carcinogens, such as vinyl chloride, benzene, polycyclic aromatic hydrocarbons, etc., some VOCs also damage the ozone layer Role, such as chlorofluorocarbons and hydrochlorofluorocarbons.

Nowadays, cars have entered thousands of households, and the problem of air pollution inside cars has become a hot spot for consumers. Automobile associations and related agencies in various countries have formulated air standards and requirements for cars to control the air quality in the cars. World-renowned car companies have also established their own corporate standards to control the air quality in the car.

VOC sources and hazards

Most of the VOCs in the car come from the paint after the paint in the car. In order to reduce the health hazards caused by the material VOC to the human body, China has vigorously developed environmentally friendly paint products in recent years. On January 26, 2015, it began to produce paints and other products. , Consignment processing and import links, a consumption tax is levied. Only paints with a VOC content of less than 420 g/liter (inclusive) under construction can be exempted from consumption tax.

When the concentration of VOC is too high, it is easy to cause acute poisoning. In mild cases, headache, dizziness, cough, nausea, and vomiting will occur; in severe cases, convulsions will occur, and the liver, kidneys, brain, and nervous system will be injured.

Medical research has proved that pregnant women living under the influence of VOC environment have a much higher probability of causing fetal malformations than normal people, and may have an impact on their children's future intellectual development.

Car standard reference

In-vehicle air VOC test

GB/T 27630-2011 Guidelines for Air Quality Assessment in Passenger Cars

HJ/T 400-2007 Sampling and determination method of volatile organic compounds and aldehydes and ketones in vehicles

Auto parts VOC test

Japan Automobile Manufacturers Association

JASO M 902-2007 Test method for volatile organic compounds (VOC) of automotive interior parts

Toyota cars

TSM0508G VOC sampling bag inspection method

Nissan

NES M0402 Test method for volatile organic compounds in automotive interior parts

Mazda

MES CF 090 automotive interior parts VOC testing method

Honda Motor

0094Z-T0A-0000 VOC detection method for automotive interior parts

General Motors

TS-BD-003 Test method for volatile organic compounds in car parts-bag method

Hyundai Motor

MS300-55 VOC emission test method for automotive interior parts

SUZUKI

SES N 2403 VOC emission control standard

Shanghai Auto

SMTC 5 400 018(V1) VOC test method for car interior parts (bag method)

Great Wall Motor

Q/CC SY248 Sampling and measuring method for volatile organic compounds and aldehydes and ketones of non-metal parts in vehicles

VOC testing of automotive materials

German Automobile Federation

VDA275 automotive interior materials formaldehyde emission test

VDA277 Automobile interior non-metallic materials total carbon emission test

VDA278 Thermal Desorption Gas Chromatography VOC and FOG Emission Test

VDA270 automotive interior materials odor characteristics determination

German Standardization Institute

DIN 75201 atomization characteristics test of automotive interior materials

American Society of Motor Vehicle Engineers

SAE J1756 car interior material atomization characteristics test

General Motors

GMW15634 Test method for volatile and semi-volatile organic compounds of interior decoration materials

GMW15635 Car interior decoration materials aldehydes and ketones emission test method

GMW3205 Determination of Odor Characteristics of Automotive Interior Materials

GMW3235 Automotive Interior Material Atomization Characteristics Test

GMW8081 Indoor Emission Test of Interior Materials (Static Headspace GC-MS)

Volkswagen

PV 3341 Emission Test of Organic Compounds for Non-metallic Materials in Automotive Interiors

PV 3900 Component odor detection in automotive interior

PV 3015 Determination of condensable components of non-metallic materials for interior decoration

PV 3925 formaldehyde emission test of automotive interior materials

VOC regulations

On March 1, 2008, the implementation of the industry standard of "HJ/T 400-2007 Sampling and Determination Method of Volatile Organic Compounds and Aldehydes and Ketones in Vehicles" developed by the General Administration of Environmental Protection; in 2011, the Ministry of Environmental Protection and the General Administration of Quality Supervision and Inspection jointly The "GB/T 27630-2011 Guidelines for Air Quality Assessment in Passenger Cars" was released and was officially implemented on March 1, 2012.

GB/T 27630-2011 this time released standards for passenger car air quality, filling the gap in the long-term non-standard air quality of passenger cars, so that the air quality of passenger cars on the market finally has a law to follow. The standard is mainly applicable to the newly-produced cars sold, and the vehicles in use can also be used for reference.

The "Guide" stipulates the concentration requirements of benzene, toluene, xylene, ethylbenzene, styrene, formaldehyde, acetaldehyde, acrolein in the air of the car, and the limits of the World Health Organization (WHO) and Japan Automobile Industry Association (JAMA) The comparison is shown in the table below.

Comparison table of vehicle VOC standard limits with other similar standards

No.

substance

Standard limit

WHO limits

Japan JAMA

mg/m3

mg/m3

mg/m3

1

benzene

0.11

——

——

2

formaldehyde

0.1

0.1

0.1

3

Toluene

1.1

——

0.26

4

Xylene

1.5

4.824hr

0.87

5

Ethylbenzene

1.5

221 year

3.8

6

Styrene

0.26

0.26

0.22

7

Acetaldehyde

0.05

0.05

0.048

8

Acrolein

0.05

0.05

——

 


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VOC test

Volatile Organic Compounds (Volatile Organic Compounds, referred to as \"VOC\") is an important reason to affect the air quality in the car. VOC mainly includes alkanes, alkenes, aromatic hydrocarbons, aldehydes or ketones, etc., has a special pungent odor, and some have been classified as carcinogens, such as vinyl chloride, benzene, polycyclic aromatic hydrocarbons, etc., some VOCs also damage the ozone layer Role, such as chlorofluorocarbons and hydrochlorofluorocarbons.

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