文档介绍：油品术语解释(中英文对照) Acid Number(AN) Milligrams Of KOH requirdd in tests tO neutralize all the acidic constituents present ina lg sample Ofa petroleum product . Also formally called the Neutralization Number , this property is often used tO indicate the extent of con-tamination or oxidation Of used oils. 酸值(AN) 也称中和值,指中和 1 克油品试样中所有酸性物质所需氢氧化钾的毫克数。该性能指标通常用于表示已用过的油被污染和被氧化的程度。 Additive Any material that is incorporated into a product at relatively low concentration tO impart new properties Or enhanceexisting properties . 添加剂以相对较低的浓度加入某一产品中,从而赋予该产品某种新的性能,或者增强其现有性能的任何材料,均称为添加剂。 Aniline point the minimum temperature plete miscibility Of equal volumes Of aniline and the sample under test . Products containing aromatics or naphthenes have lower anilinc points than products containing paraffins . 苯***点指相同体积的苯***与试样达到完全混溶所需的最低温度。含有芳烃和环烷烃的产品比含有石蜡的产品的苯***点相对要低。 Antiwear(AW) Agent Additive that is active in preventing damage caused by occurrence Of solid phase welding between sliding surfaces without local surface melting . 抗磨(AW) 添加剂相互滑动的表面因发生相互摩擦会造成损坏。抗磨添加剂就是能有效防止这类磨损,同时又不会令发生滑动的表面熔化的添加剂。 APl Service Classification —A system Of letter designations agreed On by APl , SAE and AStM tO define broad classes Of engine service . Also a system Of service classifications for automotive gear lubricants . APl 适用级别分类由 API 、 SAE 和 ASTM 共同商定并使用的一套英文字母代号,用以确定发动机油的主要适用级别,以及汽车变速箱润滑油的适用级别。 Aromatic A hydrocarbon derived