Lovibond® 3000 Comparator Series
A series of single scale, 3-field instruments designed for visual colour grading by direct comparison between the sample and Lovibond® coloured glass filters housed in test discs. The sample and two consecutive glasses on the colour scale are viewed simultaneously, making it easier to achieve the optimum colour match. 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. The tungsten halogen light source is colour corrected to CIE Standard Illuminant C (CIE Standard Illuminant B for the EBC instrument), giving constant lighting conditions for colour grading, regardless of ambient lighting.
A series of single scale, 3-field instruments designed for visual colour grading by direct comparison between the sample and Lovibond® coloured glass filters housed in test discs. The sample and two consecutive glasses on the colour scale are viewed simultaneously, making it easier to achieve the optimum colour match. 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. The tungsten halogen light source is colour corrected to CIE Standard Illuminant C (CIE Standard Illuminant B for the EBC instrument), giving constant lighting conditions for colour grading, regardless of ambient lighting.
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Glass A
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Sample
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Glass B
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A prism brings the three fields together to
aid colour grading
Versions of the Comparator 3000 are
available for the following scales, each supplied with the
appropriate coloured glass filters and glassware:
ASTM Color (ASTM D 1500)
EBC Colour (European Brewery Convention)
FAC Colour
Gardner Colour
Series 52 (Brown) Colour
US Naval Stores Rosin
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Type
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Comparator 3000
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AF650
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Petroleum Oils Comparator,
ASTM Color (ASTM D 1500)
Colour discs: POC/1 (0.5, 1.5,
2.5, 3.5, 4.5, 5.5, 6.5, 7.5); POC/2 (1, 2, 3, 4,
5, 6, 7, 8)
3 glass sample jars, AF763
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AF607
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EBC Comparator 3000
Colour discs: EBC/1 (2, 3, 4,
5, 6, 7, 8, 9, 10); EBC/2 (2.5, 3.5, 4.5, 5.5, 6.5,
7.5, 8.5, 9.5, 11); EBC/3 (10, 12, 14, 16, 18, 20,
22, 24, 26); EBC/4 (11, 13, 15, 17, 19, 21, 23, 25,
27)
1 x W680/OG/25 fused cell with
25 mm path length
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AF229
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FAC Comparator 3000
Colour discs: 4/32A (1, 5, 9,
11A, 11B, 11C, 13, 17, 21); 4/32B (3, 7, 11, 11A,
11B, 11C, 15, 19, 23); 4/32C (25, 29, 33, 37, 41,
45); 4/32D (27, 31, 35, 39, 43)
AF228/T, test tube 10.65 mm
diameter
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AF228
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Gardner Comparator 3000
Colour discs: 4/30-1 (1, 3, 5,
7, 9, 11, 13, 15, 17); 4/30-2 (2, 4, 6, 8, 10, 12,
14, 16, 18)
AF228/T, test tube 10.65 mm
diameter
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AF607/52
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Series 52 Comparator 3000
Colour discs: disc 1 (4, 6, 8,
10, 12, 14, 16, 18, 20); disc 2 (5, 7, 9, 11, 13,
15, 17, 19, 21); disc 3 (20, 22, 24, 26, 28, 30);
disc 4 (21, 23, 25, 27, 29)
1 x W680/OG/25 fused cell with
25 mm path length
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AF 670
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Rosin Comparator 3000 (US
Naval Stores)
Colour discs: disc 1 (XC, XA,
WW, N, K, H, F, D); disc 2 (XB, X, WG, M, I, G, E)
1 x Rosin cell, 7/8” path
length
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AF 660
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Rosin Comparator 3000 (Indian)
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AF 680
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Rosin Comparator 3000
(Bordeaux)
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