润滑油及燃料油中总氮含量测定法(改进的克氏法)
Lubricating oils and fueloils--Determination of total nitrogen--Modified Kjeldahl method
1988-04-29
SH/T 0749-2004
润滑油及添加剂中添加元素含量测定法(电感耦合等离子体发射光谱法)
Standard test method for determination of additive elements in both lubricating oils and additives by inductively coupled plasma atomic emission spectrometry