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Proposed ASTM standard will help determine methyl hydrogen content in base oils

A proposed ASTM International standard will be used to determine the total methyl hydrogen content of unadditized hydrocarbon-based lubricating base stocks. The test method uses high resolution nuclear magnetic resonance (NMR) spectrometers on samples that are completely soluble in chloroform at ambient temperature. ASTM’s petroleum products, liquid fuels, and lubricants (D02) is developing the proposed […]

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