T/CNITA 16001-2018 Determination of Volatile Organic Compounds and Aldehydes and Ketones in Automotive Interior Textiles Using Bag Method

Scope

Scope: This standard specifies the volatile organic compounds (benzene, toluene, xylene, ethylbenzene, styrene, and total volatile organic compounds) and aldehydes and ketones (formaldehyde, acetaldehyde, and acrolein) in automotive interior textiles, and the detection method using the bag method for measurement. This standard applies to automotive interior textiles and their products. Other materials can be referenced for use. Main technical content: The test samples are sealed in polyvinyl fluoride (PVF) sampling bags and filled with a quantified volume of nitrogen. The sampling bags are heated at a specified temperature. After a certain period of time, the VOC components in the test samples evaporate into the collection bags. The sampling bags are connected to a sampling tube, and the gas in the bags is collected at a constant flow rate by a sampling pump. The volatile organic compounds in the gas are adsorbed onto the volatile organic compound sampling tube. Using a thermal desorption system, the adsorbed compounds are desorbed at high temperatures and directly sent to a gas-mass spectrometer for quantitative analysis by external standard method. The aldehydes and ketones in the gas react with 2,4-dinitrophenylhydrazine in the DNPH tube. The reaction products are eluted with acetonitrile solvent and then analyzed by high-performance liquid chromatography. Quantitative detection is performed using external standard method.

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