CPI Oil Analysis Program

1
CPI Oil Analysis Program
Bryan Dole CPI Engineering Services, Inc. June
19, 2001
2
What Influences Oil Life

• Temperature
• 195-220F Shortens the Life by 1/2
• 220F Shortens the Life by 1/2 again
• Contamination
• By Other Oils
• Chemical Ingestion
• Previously Oxidized Oil

3
Importance of Lubricant Analysis Program

• Detects contamination by other fluids or airborne
  materials
• Measures additive levels
• Allows prediction of expected lubricant life
• Monitors machine condition -i.e. wear or
  corrosion
• Corrective action items are communicated

4
CPI Engineering Lubricant Analysis Program

• Test Fluid Integrity
• Measure Physical Chemical Properties
• Test for Contamination
• Other Lubricants/Fluids
• Process Fluids
• Particles
• Wear
• Other
• Communicate Results Recommendation Back to
  Customer

5
Technical Service Program Analytical Tests

• Kinematic Viscosity _at_ 40C ASTM D-445
• Acid Number ASTM D-974
• Antioxidant Level
• Metals Analysis
• Water by Karl Fischer
• Particle Count

6
Technical Service Program Analytical Test
Kinematic Viscosity _at_ 40C ASTM
D-445 Kinematic viscosity is the property
measured when a fixed amount of an oil flows
through a capillary tube under the force of
gravity. The unit of Kinematic viscosity is the
stoke or centistoke. A 10 increase in viscosity
from a new fluid would be the fluids changing
point.
7
Technical Service Program Analytical Test
Acid Number ASTM D-974 Acid number is a
number expressed in milligrams (mg) of
potassium hydroxide needed to neutralize the acid
in one gram of oil. An acid number of 1.0 would
be a standard changing point.
8
Technical Service Program Analytical Test
Antioxidant Level HPLC (High Performance Liquid
Chromatography) is used to determine antioxidant
level. Antioxidants of used fluids are
compared to a top standard or new fluid. The
antioxidant level helps in determining the
sampling intervals.
9
Technical Service Program Analytical Test
Metals Analysis Metals analysis consists of
both wear and additive metals. Any
metal appearing at a 5 ppm level or lower would
be considered normal. This instrument detects
metals present _at_ 6-10 microns. Water by Karl
Fischer Water content is reported in parts per
million (ppm). High water can result in
corrosion of the machine.
10
Technical Service Program Analytical Test
Particle Count Particle count tells how many
particles are present at different micron sizes.
These are both metallic and non-metallic
particles. The ISO is the ratio between the
particles present _at_ 5 micron vs. the
particle present _at_ 15 micron. ISO is reported
like this 15/12. When the bottom number
exceeds 19 we will ask you to change your oil
filters. Additional Tests are available upon
request and may require a charge.
11
Analytical Equipment

• ICP Inductive Coupled Plasma spectrometer
• HPLC - High Performance Liquid Chromatography-
  Antioxidant
• Hiac Royco Particle Counter - Particulate
• Karl Fischer - Water
• FTIR - Fourier Transfer Infrared
• GCMS - Gas Chromatograph Mass Spectrometer

12
Program Summary

• Backed by state of the art laboratory analysis
  program
• Backed by Technical support staff, Chemists
  Chemical Engineers, PhD Tribologist
• Lubricants manufactured to highest quality
  standards, manufactured in CPIs own facilities
• We are there when you need us