在监督抽查中车用乙醇质量不合格的原因分析

Cause for failure of vehicle ethanol spot-test

针对有关质检部门对车用乙醇汽油质量抽查中出现的乙醇含量不合格和其他含氧化合物超标问题进行了调研,调查发现付油设备在组分油和乙醇的调配比例上无问题,乙醇含量不合格是取样不均匀、样品不具有代表性造成的;而导致其他含氧化合物指标超标的重要原因之一是车用乙醇汽油相关标准不完善。建议在Q/SY48—2004《车用乙醇汽油调合组分油》企业标准中增加其他含氧化合物控制指标,并且提出组分油中其他含氧化合物(质量分数)应不大于0.05%。

Research on the cause for failure of vehicle ethanol spot-test is conducted. The research results show that ratio of ethanol and gasoline is of no problem. Uneven, untypical sampling is accounted for failure of ethanol content. Imperfect standard is one of the most important reasons for over standard of other oxides. Therefore, the authors suggest that item of other oxide content be introduced to Q/SSY48-2004 and the content do not exceed 0.05%(wt).