GB/T 33647-2017 in English

《GB/T 33647-2017车用汽油中硅含量的测定 电感耦合等离子体发射光谱法》由TC280（全国石油产品和润滑剂标准化技术委员会）归口，TC280SC1（全国石油产品和润滑剂标准化技术委员会石油燃料和润滑剂分会）执行，主管部门为国家标准化管理委员会。

Scope

This standard specifies the test method for determining the silicon content in automotive gasoline using an inductively coupled plasma emission spectrometer (ICP-OES). This standard is applicable to the determination of automotive gasoline with a silicon content of 1.0 mg/kg to 50.0 mg/kg (oxygenated compounds with a volume fraction not exceeding 15%), such as automotive gasoline containing methyl tert-butyl ether, automotive methanol gasoline (M15) and automotive ethanol gasoline (E10). For automotive gasoline samples with a silicon content higher than 50.0 mg/kg, they can be diluted with a higher proportion of isooctane and then determined according to this standard method, but its precision has not yet been calculated. When using this standard for testing, certain elements in automotive gasoline such as sulfur, lead, iron, manganese, phosphorus and wool will not interfere with the determination of silicon content.