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Petroleum Oils Comparator (AF650)

ASTM Oils Scale, 3-Field Visual Measurement Mark as favourite

Part Number 345030


  • Compact, Visual Measurement System for Single Scale Measurements
  • Self-Contained, Includes Everything Needed to Measure the Scale
  • Easy-To-Use, Fast & Accurate
  • 3-Field Viewing for Optimum Accuracy

A 3-field instrument for visually determining the colour of petroleum oils & waxes samples according to the ASTM Color scale by direct comparison with coloured glass filters.


  • Petroleum Oils and Waxes
  • Accurate Determination of the ASTM Oils Scale
    The AF 650 incorporates 16 glass standards which make up the scale in a pair of discs
  • Fast Determination of Colour Value
    You can directly compare the sample with the colour values for quick results.
  • Easy to Achieve Optimum Colour Accuracy
    The advantage of a 3-section field of view is that the sample and two consecutive glasses on the colour scale are viewed simultaneously, making it easier and quicker for you to achieve the ideal colour match.
  • Facilitates Tolerance Level Setting
    For rapid colour grading within predetermined colour limits, the glass standards can be set to the two limiting colours so that it is easy to check that the sample is within tolerance.
  • Guaranteed Constant Lighting Conditions
    In the instruments, the tungsten halogen light source is colour corrected to CIE standard illuminant C*, which guarantees constant lighting conditions for colour grading.
  • Compliance to Standards
    Each Comparator 3000 is supplied with the correct cells for the appropriate path length determined by the standard.
    * In the EBC version, the C filter is replaced by the B filter as required by the standards.
Applicable Standard ASTM D1500
ASTM D6045
ISO 2049
Colour Type Transparent
Portability Benchtop
Title Disc Parameter Reading Part Number Mark as favourite
0.5 - 7.5 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5 240280
1 - 8 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 240290
Title Mark as favourite
ASTM Colour
ASTM Colour
Title Online Download Type Format Language Direct Download
Datasheet 345030 - Petroleum Oils Comparator (AF650) Datasheet PDF (0.20 MB)
Comparator 3000 - Visual Colour Grading Leaflets PDF (1.89 MB)
Comparator Inst manual ENG Manuals PDF (0.60 MB)
  • Comparator 3000
  • 1 Pair glass discs
    • 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5
      1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0
  • 3 x Cylindrical glass sample jars


Title Part Number Mark as favourite
ASTM Color <0.5 134290
ASTM Color 1 134000
ASTM Color 3 134010
ASTM Color 5 134020
Title Glass Standard Values Filters Part Number Mark as favourite
ASTM Color Filter Set 139510
ASTM Color 139512
ASTM Color 341000