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Standard Practice for Set-Up and Operation of Fourier Transform Infrared (FT-IR) Spectrometers for In-Service Oil Condition Monitoring
Automatische name übersetzung:
Standard Praxis für Set-up und Betrieb von Fourier Transform Infrarot (FT-IR) Spektrometer für In-Service Oil Condition Monitoring
NORM herausgegeben am 1.12.2012
Bezeichnung normen: ASTM D7418-12
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.12.2012
SKU: NS-38399
Zahl der Seiten: 10
Gewicht ca.: 30 g (0.07 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
condition monitoring, differential trend analysis, Fourier transform infrared, FT-IR, hydrocarbon based lubricants, infrared, IR, lubricants, oils, petroleum lubricants, ICS Number Code 75.160.20 (Liquid fuels)
Significance and Use | ||||||||||||
4.1 This practice describes to the end user how to collect the FT-IR spectra of in-service oil samples for in-service oil condition monitoring. Various in-service oil condition monitoring parameters, such as oxidation, nitration, soot, water, ethylene glycol, fuel dilution, gasoline dilution, sulfate by-products and phosphate antiwear additives, can be measured by FT-IR spectroscopy (5-8), as described in Practice E2412. Changes in the values of these parameters over operating time can then be used to help diagnose the operational condition of various machinery and equipment and to indicate when an oil change should take place. This practice is intended to give a standardized configuration for FT-IR instrumentation and operating parameters employed in in-service oil condition monitoring in order to obtain comparable between-instrument and between-laboratory data. |
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1. Scope | ||||||||||||
1.1 This practice covers the instrument set-up and operation parameters for using FT-IR spectrometers for in-service oil condition monitoring for both direct trend analysis and differential trend analysis approaches. 1.2 This practice describes how to acquire the FT-IR spectrum of an in-service oil sample using a standard transmission cell and establishes maximum allowable spectral noise levels. 1.3 Measurement and integrated parameters for individual in-service oil condition monitoring components and parameters are not described in this practice and are described in their respective test methods. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||
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Historisch
15.6.2013
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1.5.2013
Historisch
15.1.2012
Historisch
15.7.2011
Historisch
15.6.2013
Historisch
1.10.2013
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