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ASTM D7889 - 13.pdf_标准图书馆stdlibrary.com

2019-6-20 · Scope1.1 This test method describes the use of a grating spec-trometer to analyze properties of an in-service fluid samplewhich are indicative of the status of that fluid and relatedmachinery.1.2 This test method provides a means for the assessment ofin …

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