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D7546-15 Standard Test Method for Determination of Moisture in New and In-Service Lubricating Oils and Additives by Relative Humidity Sensor
D7593-22 Standard Test Method for Determination of Fuel Dilution for In-Service Engine Oils by Gas Chromatography
D7899-19 Standard Test Method for Measuring the Merit of Dispersancy of In-Service Engine Oils with Blotter Spot Method
D8004-23 Standard Test Method for Fuel Dilution of In-Service Lubricants Using Surface Acoustic Wave Sensing
D8304-19 Standard Test Method for Determination of Compounded Forms of Iron in In-service Fluids