ASTM D 7662 - 15 Standard Test Method for Carbon Content in Carbon Black Feedstock Oils

Current edition approved June 15, 2015. Published September 2015. Originally approved in 2010. Last previous edition approved in 2013 as D7662 – 13. — 4 p.
This test method covers the instrumental determination of carbon content in samples of carbon black feedstock oils. Values obtained represent the total carbon content.
This test method is applicable to carbon black feedstock oils derived from petroleum, coal, and other sources which include fuel oils, residues, tars, pitches, reclaimed oils, and similar materials that are normally handled as liquids. This test method is applicable to products that typically contain 75 to 94 mass % carbon.
The results of these tests can be expressed as mass % carbon.