Recently, Eqo Testing VOC laboratory received the first batch of rail transit seat test orders, mainly using the bag method VOC test method, so what is the bag method? The following take everyone together to understand the following.

Bag method for testing volatile hazardous organic compounds (VOC) in products, with the advantages of high detection efficiency, low cost and good data consistency, has become the preferred VOC testing method for domestic and foreign car companies and auto parts manufacturers.

I. Testing principle

The samples to be measured are sealed in special sampling bags with corresponding specifications, filled with a certain amount of nitrogen and placed in the experimental chamber, heated at the specified temperature and time to volatilize the VOC. the gases in the bags are collected with Tenax and DNPH tubes and analyzed by thermal desorption gas mass spectrometer and liquid chromatograph to convert the VOC content of the products.

II. Testing equipment

VOC pretreatment chamber + VOC sampling chamber 

Testing equipment: TD-GCMS

Testing equipment: HPLC

Ⅲ. the main test capabilities

Covering mainstream brands of car manufacturers and international standards.

• International Standard ISO 12219-2 Air in road vehicles. Part 2: Screening method for the determination of volatile organic compounds emitted from vehicle interiors and materials (bag method)

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

• Pan-Asia TS- BD-003 Test method for volatile organic compounds in vehicle parts Bag method

• Nissan NESM0402 interior VOC test

• Toyota TSM 0508G-Bag method for the determination of volatile organic compounds

• Honda 0094Z SNA 0000 Method for the determination of volatile organic compounds

• Mazda MES CF 090-2010 General Standard for Parts Volatile Organic Compounds in Vehicle Compartment Parts

• Geely Q/JLYJ7110274B Determination method for volatile organic compounds in vehicle parts

• Other standards and customer requirements

With advanced large-scale instruments and equipment, a professional technical team and rich project experience, the VOC laboratory of Eqo Testing can meet the requirements of comprehensive VOC analysis and testing, and is qualified for CNAS accreditation for many international and OEM standards such as ISO 12219-2 and SMTC 5 400 018; it can provide testing services according to various standards provided by customers.

It can test automotive interior and exterior parts, components and assemblies, including: plastic parts, plastic painted parts, electroplated parts, transfer parts, textiles and leather, etc. It provides various specifications of bag testing, including: 10L, 50L, 100L, 500L, 1000L, 2000L, etc.

For any questions about VOC testing, please feel free to ask.