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Rosin Comparator (AF670)

Rosin Scale, 3-Field Visual Measurement Mark as favourite

Part Number 345060


  • 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 coatings samples according to the US Naval Stores and French Bordeaux Rosin scales by direct comparison with coloured glass filters.


  • Coatings
  • Accurate Determination of the US Naval Stores Rosin Colour
    The AF 650 incorporates 15 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.
Applicable Standard ASTM D509
Colour Type Transparent
Portability Benchtop
Title Scale Path Length Applicable Standard Mark as favourite
Rosin - French (Bordeaux) Colour
Rosin - US Naval Stores (ASTM D 509) 7/8" ASTM D509
Title Online Download Type Format Language Direct Download
Datasheet 345060 - Rosin Comparator (AF670) Datasheet PDF (0.20 MB)
Instruction Manual Comparator 3000 Instruction Manual PDF (0.60 MB)
  • Comparator 3000
  • 1 Pair glass discs
    • XC, XA, WW, N, K, H, F, D
      XB, X, WG, M, I, G, E
  • 1 Set Rosin cell