Lovibond PFXi 950 - Page 8

Lovibond
®
PFXi Series Operator’s Instruction Manual V1.6
Page 8 of 53
Key:  Standard on Instrument.  Optional Upgrade. * Can be ordered with a factory fitted heater or retrofitted
Instrument Type
Colour Scale
References
Scope
Range
195\1
195\2
195\3
195\4
195\5
195\6
195\7
195\8
195\9
880\L*
880\AT*
880\P*
880\S*
880\IP17*
880\CIE*
950*
950\P*
995*
995\P*
Kreis Value
BS 684 : 2.32 (1991)
Quality testing of fats and oils for oxidative rancidity
Depends on
concentration & path
length
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Lovibond
®
RYBN
ISO 15305
AOCS Cc 13e-92
AOCS 13j-97
IP 17 Method A
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
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AF960 Lovibond
®
Abridged red and yellow scale that was introduced
on the AF960, an early electronic colorimeter
0 - 20 Red, 0 - 70
Yellow
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Pt-Co/
Hazen/APHA
ASTM D 1209
ASTM D 5386
ISO 6271
Water and other clear liquids such as plasticisers,
solvents and petroleum spirits
0 - 500 mg Pt/l
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Rosin, US Naval
Stores
ASTM D 509
Rosins varying in colour from yellow to reddish
orange
XC - D + FF
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Saybolt Color
ASTM D 156, ASTM
D 6045, JIS K 2580
Light coloured petroleum products including aviation
fuels, kerosine, white mineral oils, hydrocarbon
solvents and petroleum waxes
-16 (darkest) to +30
(lightest)
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Series 52 (Brown)
Beers, whiskies and sugar solutions
0 - 29 units
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US
Pharmacopoeia
Pharmaceutical solutions
A - T
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Spectral data
(420 - 710 nm)
CIE Publication
130:1998
Transmittance (full spectrum and at specified
wavelengths)
Optical density (full spectrum and at specified
wavelengths)
0 - 100%
0 - 2.5
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CIE Values
X Y Z Tristimulus
ASTM E 308
CIE 15: 2004
General colour measurement
Defined by Spectrum
Locus
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x y Y Chromaticity
General colour measurement
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CIE L* a* b*
General colour measurement
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CIE L* C* h
General colour measurement
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∆E Colour
Difference
Determination of colour difference between sample
and standard
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Hunter Lab
General colour measurement
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Yellowness
ASTM E 313
ASTM D 1925
Determination of the degree of yellowness under
daylight illumination. Calculated from X Y Z
tristimulus values
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