This standard specifies the method and quality requirements for the determination of chloroform asphalt in rocks using an extractor. This standard is applicable to the determination of samples with a chloroform asphalt content greater than 0.0040% in rocks.
SY/T 5118-2005 history
2021SY/T 5118-2021 Determination of extractive content in rocks
2005SY/T 5118-2005 Determination of bitumen from rocks by chloroform extraction
1995SY/T 5118-1995 Determination of Chloroform Pitch in Rocks Fat Extractor Method