4
ISSUE NO. V1.3 DATE 12/12/00
4
Colour Scales
Scope
Range
995 995/P
950 950/P
AOCS-Tintometer
Special red and yellow version of the Lovibond RYBN
scale used for oils, fats and derivatives
0 - 20 Red, 0 - 70 Yellow
•
•
ASTM Colour
A wide range of petroleum products including lubricating
oils, heating oils and diesel fuel oils
0.5 - 8 units
•
•
beta Carotene
Direct measurement of content in parts per million
0 - 1000 ppm
•
o
Chlorophyll A & B
Direct measurement of content in parts per million
0 - 100 ppm
•
o
FAC
Dark oils and fats including tallows and greases
1 - 45 (odd numbers)
•
Gardner Colour
Oils & chemicals from pale yellow to red including
lecithins, resins, drying oils & fatty acids
1 - 18 units
•
•
Hess-Ives Units
Chemicals and surfactants
•
Iodine
Oils and chemicals ranging from yellow to brown
0 - 500 units
•
IP Units
Light coloured products such as refined undyed motor
fuel, white spirit or kerosene
Water White (0.25) to
Standard White (4.0)
•
Klett Colour
Detergents and surfactants
0 - 1000 units
•
Kreis Value
Quality testing of fats and oils for oxidative rancidity
Depends on concentration
& path length
•
Lovibond RYBN
Oils, fats, chemicals, resins and other transparent
liquids in terms of Lovibond Red, Yellow, Blue and
Neutral units
0 - 70 Red, Yellow; 0 - 40
Blue; 0 - 3.9 Neutral
•
•
•
Pt-Co/Hazen/APHA
Colour
Clear oils, chemicals and petrochemicals such as
glycerine, plasticisers, solvents, carbon tetrachloride,
and petroleum spirits.
0 - 500 mg Pt/l
•
•
•
Saybolt Colour
Light coloured petroleum products including aviation
fuels, kerosine, white mineral oils, hydrocarbon solvents
and petroleum waxes
-16 (darkest) to +30
(lightest)
•
•
AF960 Lovibond
Abridged red and yellow scale that was introduced on
the AF960, an early electronic colorimeter. Use not
recommended.
0 - 20 Red, 0 - 70 Yellow
•
AF960 AOCS
Similar to AOCS-Tintometer Colour but modified for use
on the AF960. Use not recommended.
0 - 20 Red, 0 - 70 Yellow
•
CIE Values
X Y Z tristimulus values
Defined by spectrum
•
•
•
•
x y Y chromaticity co-ordinates
locus
•
•
•
•
L*c*h*
colour space
•
•
CIE L*a*b* colour space
•
•
•
•
Hunter L a b colour space
•
•
∆
E colour difference
•
•
•
•
Spectral data
Transmittance (full sp specified wavelengths)
0 - 100%
•
•
•
•
(420 - 710 nm)
Optical density
0 - 2.5
•
•
Optional Items
Integrated heater unit A factory fitted option for maintaining samples such as fats and waxes in a liquid
state.
o o o o
Windows software for
data capture on PC
Allows data sets to be automatically downloaded to a PC computer where they can
be processed or stored. It also permits remote control of the instrument
•
•
o o
Conformance filter
sets
Sets of graded glass filters, representing a spread of colours from each of the main
scales, are available for quick and simple calibration checks.
o o o o
•
included as standard
o optional item
Accessories supplied
The accessories kit includes optical glass cells of the appropriate type and path length for each of the colour scales included (see
below), a calibrated glass conformance filter and a spare lamp.
No. Supplied by Instrument Version
Order Code Cell Designation
PFX995
PFX995
+ heater
PFX995/P PFX995/P
+ heater
PFX950
PFX950
+ heater
PFX950/P PFX950/P
+heater
60 59 60
W600/OG/10 mm
1
1
1
65
59
60
W600/B/10
mm
1
1
1
60 60 10
W600/OG/33 mm
1
1
65
60
10
W600/B/33
mm
1
1
60 60 30
W600/OG/100 mm
1
1
1
65
60
30
W600/B/100
mm
1
1
1
60
60
80
W600/OG/1"
1
1
1
65
60
80
W600/B/1"
1
1
1
60
61
30
W600/OG/5¼"
1
1
65
61
30
W600/B/5¼"
1
1
60
61
50
W600/OG/6"
1
65
61
50
W600/B/6"
1
Additional and replacement optical glass cells with path lengths from
1
/
16
" up to 6" are available to suit individual requirements.