Primary Color
Bright to pale YELLOW
Equivalent Colors
Yellow with possible tints of green or tan
Indication: Compressor Oil
Exceptionally pure system fluid
Indication: Stock Oil
The preferred condition for virgin Mineral and Alkyl benzene
Oils to be added to equipment
Special Notes: None
Primary Color
ORANGE
Equivalent Colors
Orange with light brown or tan
Indication: Compressor Oil
A very clean Mineral or Alkyl benzene system.
An exceptionally clean POE or PAG system.
Indication: Stock Oil
Mineral or Alkyl benzene Oils containing high amounts of special additives will test at
this level. It is otherwise preferred that MO and AB oils test Yellow before addition to a
system.
Virgin POE or PAG oils will test at this level unless these Oils contain a high additive
package.
Special Notes: None
Primary Color
PINK or LAVENDER
Equivalent colors
Pink with Lavender - combined or separating on the Indicator.
Soft Purple - a Lavender
observed under a low lighting condition
Indication: Compressor Oil
An acceptable condition for all system lubricants.
Indication: Stock Oil
Do not add Mineral or Alkyl benzene Oils that test at this level.
POE and PAG Oils containing high additive packages are acceptable for use at this level.
All others should not be added.
Special Notes
The gap between the Pink/Lavender
state to a Magenta or Violet condition
is broad. Therefore, a Pink/Lavender status should not be considered a borderline
condition since many systems tend to equilibrate normally at this level.
The Pink/Lavender state may
revert to Orange when the same system is measured at a lower
ambient, or under other operating conditions that stabilize and improve dryer performance.
PASS
