ASTM D6304 石油产品、润滑油和添加剂中水含量的测定 卡尔费休库仑滴定法(水分蒸发器间接滴定法)。 ASTM D6304 - 16e1 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration. Procedure C(Water Evaporator Accessory)