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ASTM-D7418:2007 Edition

ASTM-D7418:2007 Edition

$40.63

D7418-07 Standard Practice for Set-Up and Operation of Fourier Transform Infrared (FT-IR) Spectrometers for In-Service Oil Condition Monitoring

Published By Publication Date Number of Pages
ASTM 2007 8
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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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Significance and Use
Apparatus
3 FT-IR Spectral Acquisition Parameters
Sampling
Preparation and Maintenance of Apparatus
Procedure for Collecting FT-IR Spectra
4 Reporting of Spectral Data
Instrument Performance Checks
5 Sample Spectral Noise Test
Keywords
X1. FRINGING EFFECTS IN INFRARED LIQUID TRANSMISSION SAMPLE CELLS AND FRINGE REDUCTION METHODS
X1.1
X1.2
X1.3
X1.4
6 X2. SAMPLE CELL PATHLENGTH CALCULATION
X2.1 Calculation using Interference Fringes
FIG. X1.1
7 X2.2 Calculation Using Check Fluid
X2.3
FIG. X2.1
8 REFERENCES

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