HOME | REORDER LIST | VIEW CART | MY ACCOUNT | LOGIN | CONTACT US | LOVIBOND HOME
Light Transmitting Samples
    Light Transmitting Samples 
Why Measure Color? Many circumstances exist where some form of color measurement is necessary to quantify and assess a product's color or where color is an indirect measure of product quality or processing performance.
 
Uniformity of Color in Production
If the color of a product varies from one batch to another, 
it may be perceived as being an inferior product.

Performance Indicator
Assess the performance of a decolorizing material or 
determine a product's suitability for a particular purpose.

Product Condition Indicator
Indicate the level of purity, the degree of deterioration 
over time, adverse growing conditions experienced by
natural raw materials or the condition of used product.

Content Indicator
There is often a correlation between color and chemical or
physical content (for example, the amount of fat in milk).
In these cases, color measurement may offer a simple 
alternative to more complex means of testing.

Quality Control
A quick check on contamination or degradation
An indication of suitability for a particular purpose
As a guide to the condition of used product

Refining
As a measure of progress in refining and processing
Feedback for process control and optimization
Identification of product grade

Inspection of Incoming Materials
Assurance that materials meet color specifications

Inspection of Final Products
Conformance to predetermined color tolerances
Compliance with customer specifications
 

The Color Scales 
Color Scale References Scope Range
AOCS-Tintometer color AOCS Cc 13b-45 the Wesson Method
AOCS Cc 8d-55
AOCS Cc 13j-97
Modified red and yellow version of the Lovibond RYBN scale used for oils, fats and derivatives. 0.1-20 Red
1.0-70 Yellow
beta Carotene BS684 section 2.20 Direct measurement of beta carotene content. Parts per million
Chlorophyll A & B AOCS Cc 13d-55 Direct measurement of chlorophyll content. Parts per million
Dichromate Color Index DGF CI-V 4d (discontinued) Oils and fats where colors are similar to potassium dichromate solutions. 0 - 10
FAC Color AOCS Cc 13a-43 Approved by the Fats Analysis Committee of the American Oil Chemists Society for grading dark colored oils, fats and tallows. 1 - 45 (odd numbers)
Gardner color ASTM D 1544
ASTM D 6166
AOCS Td 1A
Oils and chemicals ranging from pale yellow to red, including lecithins, resins, drying oils and fatty acids. 1 - 18 units
Hess-Ives Color Units   Chemicals and surfactant liquids  
Iodine Color DIN 6162 Oils and chemicals ranging from yellow to brown. For colors registering 1 or less on the Iodine scale, the Pt-Co Color Scale is applicable. 1 - 500 units
Klett Color (blue filter KS-42) AOCS Dd 5-92 Detergents and surfactants. 0 - 1000 units
Kreis Value   Colorimetric test for quality control of fats and oils for oxidative rancidity which uses Lovibond Red units. Depends on concentration and pathlength
Lovibond RYBN ISO 15305
BS 684
AOCS Cc 13e-92
AOCS Cc 13j-97
Based on calibrated series of colored glasses in each of the colors red, yellow and blue, going from very pale to dark. It is widely used for oils, chemicals, resins and other transparent liquid products; it is also used for some light-reflecting products susch as fats and waxes. 0.1 - 70 Red, Yellow
0.1 - 40 Blue
0.1 - 3.0 Neutral
Platinum-Cobalt/
Hazen/
APHA Color
ASTM D 1209
AOCS Ea 9-65
AOCS Td 1b-64
Clear oils, chemicals and petrochemicals such as glycerine, solvents, carbon tetrachloride and petroleum spirits. 0 -500 mg Pt/l
Rosin, US Naval Stores ASTM D 509 Rosins varying in color from yellow to reddish orange. XC - D + FF
Yellowness Index ASTM D 1925
ASTM E 313
Determination of the degree of yellowness under daylight illumination. Claculated from XYZ tristimulus values.  
ASTM Color ASTM D 1500
ISO 2049
ASTM d 6045
JIS K 2580
A wide range of petroleum products including lubricating oils, heating oils and diesel fuel oils. 0.5 - 8 units
Dyed Aviation Gasoline ASTM D 2392 Color acceptability of aviation gasoline that has been dyed for easy identification of grade. Minimum and maximum
limits of red, blue, green, brown and purple dyes
IP Uits IP 17 Method B Light colored products such as refined undyed motor fuel, white spirit or kerosene Water White (0.25) to
Standard White (4.0)
Saybolt Color ASTM D 156
ASTM D 6045
JIS K 2580
Light colored petroleum products including aviation fuels, kerosene, white mineral oils, hydrocarbon solvents and petroleum waxes. -16 (darkest) to
+30 (lightest)

S - included as standard    O - available as optional upgrade
Color Scale
Spectrophotometric Colorimeters
Visual Colorimeters
 
PFXi995
PFXi950
PFXi880/L
PFXi880/AT
PFXi195/1
PFXi195/3
PFXi195/6
PFXi995/P
PFXi950/P
PFXi880/P
Tintometer
Model F
Tintometer
AF710-3
AOCS-Tintometer color
S
S
O
S
             
S
beta Carotene
S
O
O
O
               
Chlorophyll A & B
S
O
O
O
               
Dichromate Color Index                        
FAC Color
S
O
O
O
 
S
           
Gardner Color 1963
S
S
O
O
S
S
O
         
Hess-Ives Color Units
S
     
O
O
S
         
Iodine Color
S
O
O
O
S
             
Klett Color (blue filter KS-42)
S
O
O
O
O
O
S
         
Kreis Value
S
                 
S
 
Lovibond RYBN
S
S
S
             
S
 
Platinum-Cobalt/Hazen/APHA Color
S
O
O
O
S
O
S
         
Rosin, US Naval Stores        
O
O
O
         
Yellowness Index        
O
O
O
         
ASTM Color
O
O
O
O
O
O
O
S
S
S
   
IP Units              
S
       
Saybolt Color
O
O
O
O
O
O
O
S
S
S
   
Color Values
PFXi995
PFXi950
PFXi880/L
PFXi880/AT
PFXi195/1
PFXi195/3
PFXi195/6
PFXi995/P
PFXi950/P
PFXi880/P
Tintometer
Model F
Tintometer
AF710-3
XYZ tristimulus values
S
S
S
S
S
S
S
S
S
S
   
xyY chromaticity co-ordinates
S
S
S
S
S
S
S
S
S
S
   
CIE L*a*b* color space
S
S
S
S
S
S
S
S
S
S
   
L*C*h color space
S
     
O
O
O
S
       
Hunter L a b color space
S
           
S
       
DE color difference
S
S
S
S
S
S
S
S
S
S
   
Transmittance
S
S
S
S
S
S
S
S
S
S
   
Optical density
S
     
S
S
S
S
       
Other                        
Path length up to 6"
(153mm)
up to 6"
(153mm)
up to 6"
(153mm)
up to 6"
(153mm)
up to
50 mm
up to
50 mm
up to
50 mm
up to 6"
(153mm)
up to 6"
(153mm)
up to 6"
(153mm)
up to 6"
(153mm)
to 5 1/4"
(134mm)
Windows software
S
O
O
O
S
S
 
S
O
O
   
Integrated heater unit
O
O
O
O
     
O
O
O
   

Return to Color Measurement Home Page