GB/T 9170-1988
ActiveLubricating oils and fueloils--Determination of total nitrogen--Modified Kjeldahl method
润滑油及燃料油中总氮含量测定法(改进的克氏法)
Application Summary AI generated
This standard specifies the modified Kjeldahl method for determining total nitrogen content in lubricating oils and fuel oils. It is applied in the petroleum industry for quality control and specification testing of these products, particularly in contexts where nitrogen content affects performance, stability, or environmental compliance. The method is used by laboratories and refineries to ensure accurate measurement of nitrogen levels in base oils and finished fuels.
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