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AF509C for Marine Diesel Fuel Type F76

Kit for Visual Colour Grading of Type F76 Marine Diesel Fuels according to ASTM Colour Mark as favourite

Part Number 415090


  • Fast, Economical & Portable Visual Matching
  • Two-Field Vision for Accurate Results
  • Ability to Guarantee Constant Lighting Conditions

The Comparator 2000+ is an easy-to-use, entry level colour measurement system that compares the colour of the sample directly against the colour of glass in a disc. All you need to do is rotate the disc to get the closest result to the scale.


  • Petroleum Oils and Waxes
  • Quick, On-site Colour Measurement
    This special kit enables you to quickly measure the colour of type F76 marine diesel fuels according to a limited range of the ASTM Colour Scale. It is designed to ensure that the correct fuel is used in motor vessels running with type F76 diesel, thereby avoiding errors in fuel use that can result in expensive corrective maintenance. The test is based on a direct colour match between the sample and a test disc containing ASTM Color standards, enabling you to accept or reject the diesel fuel in a matter of minutes.
  • Easy Dertermination
    The Lovibond® AF 509/C includes a test disc containing a limited range of ASTM Color standards (1 - 5 units as opposed to the full range of 0.5 - 8 units). This is sufficient for this purpose since type F76 fuel has a target colour of 3.5 ASTM Color and reduces the options for you to chose from.
  • Fast, Economical & Portable Visual Matching
    The Comparator 2000+ is a flexible, modular system for Visual Colour Grading. Using a suitable comparator instrument and glass disc, you can quickly visually match the sample directly against the calibrated, colour stable glass standards.
  • Two-Field Vision for Accurate Results
    Lovibond® comparator instruments include an integrated prism which causes the sample and comparison fields to overlap, allowing enhanced colour discrimination and matching. The prism is ultrasonically sealed to prevent contamination of the optics. Each individually graded glass standard represents a discrete step on the measurement range (as opposed to a continuous graduation), aiding colour discrimination and allowing great accuracy of results.
  • Ability to Guarantee Constant Lighting Conditions
    An optional item for the Comparator 2000+ is the Daylight 2000 Lighting Unit. This is a standardised light source which guarantees you a constant lighting condition for accurate colour grading. This is particularly useful when the sample is very pale in colour. By using a Lovibond® lighting unit, you can confident of uniform lighting conditions for colour matching, 24 hours a day and irrespective of ambient lighting.
  • Extended Shelf Life
    The unique feature of Lovibond® test discs is that they incorporate coloured glass standards that are colour stable and not affected by UV light or extreme environmental conditions.
    Please note, we cannot guarantee compatability of discontinued Lovibond® Comparator 1000 disks with the Lovibond® 2000+ Comparator.
Applicable Standard ASTM D1500
ASTM D6045
ISO 2049
Colour Type Transparent
Portability Portable
Title Disc Parameter Reading Part Number Mark as favourite
4/81 1, 2, 3, 3.5, 4, 4.5, 5 241270
4/81A 1, 2, 2.5, 3, 3.5, 4, 4.5, 5 241271
4/82 0.5, 1, 2, 3, 3.5, 4, 4.5 292830
Title Mark as favourite
ASTM Colour
ASTM Colour
ASTM Colour
Title Online Download Type Format Language Direct Download
Datasheet 415090 - AF509C for Marine Diesel Fuel Type F76 Datasheet PDF (0.20 MB)
Comparator 2000 - Flexible System for Visual Colour Grading Leaflets PDF (1.39 MB)
Comparator 2000 Eng Manuals PDF (0.11 MB)
  • Sturdy Case Including
  • 1 x Lovibond 2000+ Comparator
  • 1 x 4/81 ASTM Diesel Fuel Disc Precalibrated to 1, 2, 3, 4.5, 4, 4.5, 5
  • 2 x W680.OG.33mm Cell
  • 1 x Kit Instructions
Title Glass Standard Values Filters Part Number Mark as favourite
ASTM Color Filter Set 139510
ASTM Color 139512
ASTM Color 341000