总碱值Total Base Number(TBN):在规定的条件下滴定时,中和1g试样中全部碱性组分所需高氯酸的量,以当量氢氧化钾毫克数表示,称为润滑油或添加剂的总碱值。总碱值是测定润滑油中有效添加剂成分的一个指标,表示内燃机油的清净性与中和能力。
abbr. TBN
misc. total base number
较高的总碱值和优异的碱值保持性,对乙醇汽油燃烧后产生的含水酸性有害物质有较强的抑制功能。
High TBN and excellent maintainability of base number can strongly inhibit water-bearing acid hazards produced after the combustion of ethanol gasoline.
探讨了评价高碱值磺酸钙水解安定性的方法,认为总碱值保留值和淤渣量均能较好地反映水解安定性。
It was recognized that the retention percentage of total base number and the sludge amount could reflect the hydrolytic stability.
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