ASTM WK73554

    New Test Method for Standard Test Method for Methyl Hydrogen Content of Hydrocarbon Oils by High Resolution Nuclear Magnetic Resonance Spectroscopy

    (What is a Work Item?)

    Developed by Subcommittee: D02.04.0F | Committee D02 | Contact Staff Manager


    1. Scope

    1.1 This test method covers the determination of the total methyl hydrogen content of unadditized base stock (lubricating oils) hydrocarbon oils using high-resolution nuclear magnetic resonance (NMR) spectrometers that are completely soluble in chloroform at ambient temperature. 1.2 The reported units are mole percent methyl hydrogen atoms. For pulse Fourier transform (FT) spectrometers, the detection limit is typically 0.1 % mol hydrogen atoms. The interim precision is applicable in the range 20.5 to 38.7 % mol hydrogen.


    methyl hydrogen content; continuous wave; Fourier transform; hydrocarbon oils; lubricant base stocks; NMR; nuclear:magnetic resonance spectroscopy


    This is a new test method using H-NMR technique to determine the methyl hydrogen content which is a characteristic likely applicable for base oil interchange.

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Frank Di Sanzo

    Draft Under Development