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See Chinese contents: GB/T 33647-2017 GB/T 33647-2017: Determination of silicon content in motor gasoline -- Inductively coupled plasma optical emission spectrometry (ICP-OES)
This Standard specifies the test method of adopting the inductively coupled plasma optical emission spectrometry (ICP-OES) to determine the silicon content in motor gasoline. This Standard is applicable to determine the silicon content of 1.0mg/kg ~ 50.0mg/kg in the motor gasoline (the volume fraction of oxygen-containing compounds shall not exceed 15%), such as motor gasoline containing methyl tert-butyl ether, motor methanol gasoline (M15) and motor ethanol gasoline (E10). For the motor gasoline sample with silicon content higher than 50.0mg/kg, it can be diluted by the isooctane with higher proportion, then determine according to this Standard method; but its precision has not been statistics yet.
