ASTM-D7416:2008 Edition

$44.96

D7416-08 Standard Practice for Analysis of In-Service Lubricants Using a Particular Five-Part (Dielectric Permittivity, Time-Resolved Dielectric Permittivity with Switching Magnetic Fields, Laser Particle Counter, Microscopic Debris Analysis, and Orbital Viscome

Published By	Publication Date	Number of Pages
ASTM	2008	13

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Category: ASTM

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ASTM D7416-08

Historical Standard: Standard Practice for Analysis of In-Service Lubricants Using a Particular Five-Part (Dielectric Permittivity, Time-Resolved Dielectric Permittivity with Switching Magnetic Fields, Laser Particle Counter, Microscopic Debris Analysis, and Orbital Viscome

ASTM D7416

Scope

1.1 This practice covers procedures for analysis of in-service lubricant samples using a particular five-part (dielectric permittivity, time-resolved dielectric permittivity with switching magnetic fields, laser particle counter, microscopic debris analysis, and orbital viscometer) integrated tester to assess machine wear, lubrication system contamination, and lubricant dielectric permittivity and viscosity. Analyzed results trigger recommended follow-on actions which might include conducting more precise standard measurements at a laboratory. Wear status, contamination status, and lubricant dielectric permittivity and viscosity status are derived quantitatively from multiple parameters measured.

1.2 This practice is suitable for testing incoming and in-service lubricating oils in viscosity grades 32 mm²/s at 40°C to 680 mm²/s at 40°C having petroleum or synthetic base stock. This practice is intended to be used for testing in-service lubricant samples collected from pumps, electric motors, compressors, turbines, engines, transmissions, gearboxes, crushers, pulverizers, presses, hydraulics and similar machinery applications. This practice addresses operation and standardization to ensure repeatable results.

1.3 This practice is not intended for use with crude oils.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

Keywords

condition monitoring; contamination status; debris analysis; dielectric permittivity; ferrous density; ferrous index; in-service oil; machinery health; particle counting; ppm distribution; time-resolved-dielectric; viscosity; wear status

ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)

DOI: 10.1520/D7416-08

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology
3	Summary of Practice Significance and Use Interferences TABLE 1
4	Apparatus FIG. 1
5	Reagents and Materials Hazards Sampling and Test Specs and Units FIG. 2
6	Preparation of Apparatus Standardization and Verification TABLE 2
7	Procedure
8	Interpretation of Results FIG. 3
9	Report Precision and Bias TABLE 3
10	FIG. 4
11	FIG. 5
12	FIG. 6
13	Keywords TABLE 4