Lovibond® Comparator 2000 System

Colour Measurement | Lovibond® Comparator Systems | Lovibond® Comparator 2000 System

Lovibond® 2000+ Comparator - International Fruit Juice Union (IFU) Colour Scale AF 331 Test Kit

Colour Grading according to the International Fruit Juice Union (IFU) Colour Scale
Based on the Lovibond® Comparator System 2000, this kit is a convenient means of ordering the complete range of equipment required for grading samples according to IFU Colour. It includes three colour-grading discs, each containing stable-coloured glass standards that represent a portion of the IFU Colour scale. The sample (in a 13 mm glass cell) is viewed in a Lovibond Comparator 2000+ with the appropriate test disc until a colour match is obtained.

Comparator 2000+
A high quality comparator instrument designed for colour matching of liquid samples with the precalibrated coloured glass standards housed in Lovibond test discs. It includes an integrated prism, which brings the sample and the colour standard together in a single field of view and an adjustable sample cell compartment.

Daylight 2000 Lighting Unit
Accuracy in colour grading benefits from a constant and stable light source. The Daylight 2000 Lighting Unit is a standardised bench-top light source, which guarantees constant and uniform lighting conditions for colour matching, 24 hours a day and irrespective of ambient lighting.

IFU Colour disc 4/48
Test disc containing 9 coloured glass filters precalibrated to 1, 2, 3, 4, 5, 6, 7, 8, 9 IFU

IFU Colour disc 4/49
Test disc containing 9 coloured glass filters precalibrated to 9, 10, 11, 12, 13, 14, 15, 16, 17 IFU

IFU Colour disc 4/50
Test disc containing 9 coloured glass filters precalibrated to 17, 18, 19, 20, 21, 22, 23, 24, 25 IFU

W680/OG/13 mm cell
A precision fused optical glass cell with a 13 mm path length

Lovibond® 2000+ Comparator AF 353Test Kit - Blood Haemoglobin Levels (Harrison’s Method)

353Test Kit - Blood Haemoglobin Levels (Harrison’s Method)

The Lovibond® AF 353 test kit is designed for estimation of blood haemoglobin levels using Harrison’s Method.
This method is particularly simple with low running costs since it employs undiluted blood and does not use any
reagents. Furthermore, it does not require any power supply for operation. Blood is run directly into a special
capillary blood cell and the colour of the blood is matched in a Comparator instrument with a series of
precalibrated glass filters. The filters are housed in a pair of Lovibond test discs: disc 5/8A covers the range
20 - 58% haemoglobin; disc 5/8B covers the range 64 - 130% haemoglobin (100% is equivalent to 14.6 g per
100 ml).

The Lovibond AF 353 test kit is supplied with the following equipment in a plastic carrying case:

Lovibond Comparator 2000+
A high quality comparator instrument for colour matching of blood samples with the precalibrated coloured
glass standards housed in Lovibond test discs. It includes 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.

Haemoglobin Disc 5/8A
Lovibond test disc containing nine coloured glass filters precalibrated to 20, 24, 28, 32, 36, 40, 46, 52, 58%.

Haemoglobin Disc 5/8B
Lovibond test disc containing nine coloured glass filters precalibrated to 64, 70, 76, 84, 92, 100, 110, 120, 130%.

Capillary Blood Cell, W670/OG/0.004"
Discs 5/8A and 5/8B are calibrated for use with a capillary action blood cell of 0.004" path length. The glass
cell consists of a flat back plate and a separate cover plate with three small glass studs which are accurately
ground to maintain the distance between the two plates at 0.004". The cell is filled from the side by running
capillary blood from a pricked finger (or ear lobe or heel) directly into the space between the plates. It is
supplied with a metal clip, which is designed to hold the two plates together when the cell is standing upright in the Comparator.

Lancets
Pack of 100 disposable lancets.

Lovibond® Comparator 2000+ Gardner Colour Scale Lovibond® AF 334 Test Kit

AF 334 Test Kit
Based on the Lovibond® Comparator System 2000, this kit is a convenient means of ordering the complete range of equipment required for visual grading of Gardner Colour. It includes two colour-grading discs, each containing stablecoloured glass standards that represent a portion of the Gardner Colour scale. The sample (in a 10 mm glass cell) is viewed in a Lovibond Comparator 2000+ with the appropriate test disc until a colour match is obtained.

Comparator 2000+
A high quality comparator instrument designed for colour matching of liquid samples with the precalibrated coloured glass standards housed in Lovibond test discs. It includes an integrated prism, which brings the sample and the colour standard together in a single field of view and an adjustable sample cell compartment.

Daylight 2000 Lighting Unit
Accuracy in colour grading benefits from a constant and stable light source. The Daylight 2000 Unit Lighting is a standardised bench-top light source, which guarantees constant and uniform lighting conditions for colour matching, 24 hours a day and irrespective of ambient lighting.

Gardner Colour disc 4/30 AS
est disc containing 9 coloured glass filters precalibrated to 1, 2, 3, 4, 5, 6, 7, 8, 9 Gardner

Gardner Colour disc 4/30 BS
Test disc containing 9 coloured glass filters precalibrated to 10, 11, 12, 13, 14, 15, 16, 17, 18 Gardner

W680/OG/10 mm cell
A precision fused optical glass cell with a 10 mm path length

Lovibond® Comparator 2000+ European Pharmacopoeia Colour Series Lovibond® AF 332 Test Kit

Colour Grading of Pharmaceutical Solutions according to the European Pharmacopoeia Colour Series Lovibond® AF 332 Test Kit

European Pharmacopoeia methods for colour assessment of pharmaceutical solutions are based on a visual comparison with liquid standards formulated from dilutions of primary red, yellow and blue. However, the colour of these liquid standards is stable only for a limited period so, to ensure reliable results, new stock solutions must be prepared regularly.

Their preparation requires considerable time and care as any slight variation may give rise to inaccuracies and inconsistent results. By comparison, glass colour standards are simple to use, quick to obtain results and eliminate the time-consuming procedures involved when using liquid standards for colour grading.
Tests conducted by the Swiss Federal Department of Health concluded that the Lovibond Comparator System 2000 with glass colour standards was as reliable for colour grading of pharmaceutical solutions as the standard colour test solutions specified in the European Pharmacopoeia.

AF 332 Test Kit for Visual Grading of EP Colour
Based on the Lovibond® Comparator System 2000, this kit is a convenient means of ordering the complete range of equipment required for grading pharmaceutical solutions according to the EP Colour series. It includes five colour-grading discs, each containing stable-coloured glass standards that precisely match the reference solutions specified in the European Pharmacopoeia. The sample (in a 40 mm glass cell) is viewed in a Lovibond Comparator 2000+ with the appropriate test disc until a colour match is obtained.

Comparator 2000+
A high quality comparator instrument designed for colour matching of liquid samples with the precalibrated coloured glass standards housed in Lovibond test discs. It includes an integrated prism, which brings the sample and the colour standard together in a single field of view and an adjustable sample cell compartment.

Daylight 2000 Lighting Unit
Accuracy in colour grading benefits from a constant and stable light source. The Daylight 2000 Lighting Unit is a standardised bench-top light source, which guarantees constant and uniform lighting conditions for colour matching, 24 hours a day and irrespective of ambient lighting.

EP Red series disc 4/64A
Test disc containing 7 glass filters precalibrated to R1, R2, R3, R4, R5, R6, R7

EP Yellow series disc 4/64B
Test disc containing 7 glass filters precalibrated to Y1, Y2, Y3, Y4, Y5, Y6, Y7

EP Brown series disc 4/64C
Test disc containing 9 glass filters precalibrated to B1, B2, B3, B4, B5, B6, B7, B8, B9

EP Brown/Yellow series disc 4/64D
Test disc containing 7 glass filters precalibrated to BY1, BY2, BY3, BY4, BY5, BY6, BY7

EP Green/Yellow series disc 4/64E
Test disc containing 7 coloured glass filters precalibrated to GY1, GY2, GY3, GY4,GY5, GY6, GY7

2 x W680/OG/40 mm cell
A pair of precision fused optical glass cells with a 40 mm path length

Lovibond® Comparator 2000+ Colour Grading according to EBC Colour Scale AF 330 Test Kit

Colour Grading according to EBC Colour Scale Lovibond® AF 330 Test Kit
The EBC colour scale, developed by the Institute of Brewing and the European Brewing Convention, is a recognised method for colour grading of beers, malts and caramel solutions as well as similarly coloured liquids. It has a range of 2 to 27 visual units, yellower pale worts and lagers at the low end of the scale and the redder colour of dark worts, beers and caramels at the upper end of the scale. If the sample falls outside this range (eg concentrates, syrups) then sample dilution and a different path length cell can be used to bring the reading within the EBC range.

AF 330 Test Kit
Based on the Lovibond® Comparator System 2000, this kit is a convenient means of ordering the complete range of equipment required for grading samples according to EBC Colour. It includes four colour-grading discs, each containing stable-coloured glass standards that represent a portion of the EBC Colour scale. Sample dilution and the cell path length (5 - 40 mm depending on their saturation) are chosen to bring the reading within the standard EBC range. The sample is then viewed in a Lovibond Comparator 2000+ with the appropriate test disc until a colour match is obtained. EBC Colour is always reported as if it were undiluted and measured in a 25 mm path length cell using the following equation:

EBC Colour = Reading x dilution factor x 25/path length in mm

Comparator 2000+
A high quality comparator instrument designed for colour matching of liquid samples with the precalibrated coloured glass standards housed in Lovibond test discs. It includes an integrated prism, which brings the sample and the colour standard together in a single field of view and an adjustable sample cell compartment.

Daylight 2000 Lighting Unit (EBC Version)
Accuracy in colour grading benefits from a constant and stable light source. The Daylight 2000 Unit Lighting Unit is a standardised bench-top light source, colour corrected to CIE standard illuminant B, which guarantees constant lighting conditions for EBC colour grading, day or night and whatever the ambient lighting.

EBC Colour disc 4/14A
Test disc containing 9 coloured glass filters precalibrated to 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0 EBC

EBC Colour disc 4/14B
Test disc containing 9 coloured glass filters precalibrated to 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 EBC

EBC Colour disc 4/14C
Test disc containing 9 coloured glass filters precalibrated to 10, 11, 12, 13, 14, 15, 16, 17, 18 EBC

EBC Colour disc 4/14D
Test disc containing 9 coloured glass filters precalibrated to 19, 20, 21, 22, 23, 24, 25, 26, 27 EBC

W680/OG/25 mm cell
A precision fused optical glass cell with a 25 mm path length

Lovibond® Comparator 2000+ System - ASTM Color Scale AF 509/C Test Kit

Colour Grading of Marine Diesel Fuel (Type F76) according to the ASTM Color Scale

AF 509/C Test Kit
The Lovibond® AF 509/C is a special kit for visual colour grading of type F76 marine diesel fuels according to a limited range of the ASTM Color 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 the operator to accept or reject the diesel fuel in a matter of minutes.
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), which is sufficient for this purpose since type F76 fuel has a target colour of 3.5 ASTM Color. The sample (in a 33 mm glass cell) is compared with the colour standards in a Lovibond Comparator 2000+ until a colour match is obtained.

The Lovibond AF 509/C is supplied with the following equipment in a plastic carrying case:

Comparator 2000+
A high quality comparator instrument designed for colour matching of liquid samples
with the precalibrated coloured glass standards housed in Lovibond test discs. It includes an integrated prism, which brings the sample and the colour standard together in a single field of view and an adjustable sample cell compartment.

ASTM Color Disc 4/81
Lovibond test disc containing 7 coloured glass standards precalibrated to 1, 2, 3, 3.5,
4, 4.5, 5 ASTM Color units.

2 x W 680/OG/33 cells
A pair of precision fused optical glass cells with a 33 mm path length. `

Colour Measurement | Lovibond® Comparator Systems | Lovibond® Comparator 2000 System