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ASTM D7040-04(R2020) pdf download

ASTM D7040-04(R2020) pdf download

1.1 This test method covers the quantitative determination of phosphorus in unused lubricating oils, such as International Lubricant Standardization and Approval Committee (ILSAC) GF 4 and similar grade engine oils, by inductively coupled plasma atomic emission spectrometry. 1.2 The precision statements are valid for dilutions in which the mass % sample in solvent is held […]

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