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Analytical Instrumentation Contact Details Lovibond® EComparator Range – The Best of Both Worlds
With the EComparator series, viewers can view the colour difference with on-screen colour and on-screen numerical display. Touch screen technology makes the EComparator easily programmable with instinctive menus on screen. Users can set language, date and time, view preferences and create projects with individual tolerance settings.
An on-screen warning system of “within tolerance” (green), “outside tolerance” (red) and “on border of tolerance” (amber) provides the user with immediate information on the sample.
Progressing from Visual to Automatic Colour Measurement
The EComparator series advances colour measurement to enable users to progress from Visual (subjective) to Electronic (objective) results. Traditionally, the Lovibond® team has been renowned for its supply of electronic (spectrophotometric) and visual (comparator method) instruments. Colour graders who are used to the traditional comparator series sometimes fi nd the upgrade to an electronic system daunting. The assurance of relying on physical colour difference is diminished. This transition has now been made easy.
The current series comprise:
The EC 2000 Pt Co (range 0-500 at a resolution of 1 Pt-CO unit - ASTM D1209 Standard)
The EC 2000 Gardner (range 0-18 at a resolution of 0.1 Gardner units – ASTM D1544, D6166 Standard)
The EC 3000 ASTM Colour (range 0-8 at a resolution of 0.1 units – ASTM D1500, D6045 Standard)
The EC 3000 Saybolt (range -16 - +30 at a resolution of 1 Saybolt unit – ASTM D156, D6045 Standard)
The EC 2000 range provides users with a Two Field View visual representation in alignment with the popular Lovibond® Comparator 2000+ system widely used today. By contrast, the EC 3000 series replicates the visualization of the Lovibond® 3000 / AF Comparators with a 3-section fi eld of view. Here the sample and two consecutive readings of the colour scale are viewed simultaneously, making it easier to achieve the optimum colour match.
User friendly ergonomics and an intuitive interface guarantee new users can be quickly training and easily supported. Large data storage (>20,000) readings and USB connectivity ensure readings can be stored and shared easily and quickly. The EComparator Series enables immediate reporting from the Laboratory or on-site.
Lovibond® accuracy and effi ciency is apparent throughout.
EComparators are supplied with Certifi ed Glass and Liquid Reference Standards enabling quick and simple validation. The instruments are equipped with an integrated light shield to protect the sample from ambient light and a fl exible path length and cell choice (glass or plastic) for fl exibility of application. With robust casing and a small laboratory footprint, the EComparator Series is the ideal solution for users wishing to experience the benefi ts of immediate, accurate, electronic readings: the best of both worlds.
THE SCALES
PLATINUM-COBALT/HAZEN/APHA COLOUR (ASTM D 1209)/True Color Units (TCU)
Often referred to as Pt-Co, Platinum-Cobalt, Hazen, APHA Colour or True Color Units - all terms are interchangeable and equally valid. This scales is typically used to measure clear to dark amber liquids.
Originally defi ned by specifi ed dilutions, it ranges from 0 at the light end of the scale to 500 at the darkest.
The scales is used extensively in the water industry but also for clear oils, chemicals and petrochemicals such as glycerine, plasticisers, solvents, carbon tetrachloride and petroleum spirits.
GARDNER COLOUR (ASTM D 1544, ASTM D 6166, AOCS Td 1a, MS 817 Part 10)
A single number, one dimensional, colour scale for grading the colour of similarly coloured liquids.
CH Adverts.qxp_Layout 1 06/01/2019 13:12 Page 1
Automated water content in LPG Corrosion is one of the most challenging issues facing the petroleum industry. Water is one of the most corrosive substances present in liquefi ed petroleum gas (LPG). Recent advances have been made in adapting coulometric Karl Fischer technology to analyse problematic sample types like LPG and LNG. Previously, a variety of techniques were employed to measure water content in LPG, however, coulometric Karl Fischer is now being considered as the technique offers greater sensitivity and analyses both free and chemically bonded water. ECH GmbH have developed a new analytical procedure that removes inferences caused by mercaptans and H2S enabling the coulometric Karl Fischer method to accurately determine water content in LPG down to 1ppm. Karl Robertson, from ECH, says, “We fully recognise the challenges faced by those needing to quickly and accurately measure water content in LPG. This is why we have developed the fully automated “Aquamax KF LPG Pro” to perform over 250 measurements within a 48 hour period without the need to replenish or switch any solvents. Thanks to our unique sample loop, the titrator can handle all LPG and gas mixtures without having the problem of manually preparing a mass fl ow controller. The Aquamax KF LPG Pro is fully automated removing the need for an operator to be present during the test” Aquamax KF are light weight and portable for use in the laboratory or wherever the sample point may be located. ECH have designed the Aquamax KF LPG Pro to be integrated into the process environment as an online system too.
Mr Robertson continues, “Another consideration is that by removing the sulphur this procedure no longer requires an interference calculation. This eliminates any potential operator error in calculating the true result.”
Water content in LPG is just one of the applications for which the Aquamax KF LPG Pro was designed for. ECH are experienced in using this product for a wide range of applications including LNG, technical gas, DME, Gas mixtures and CNG. For More Info, email:
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Cont act us to find out more on +44 (0) 1525 404747 or email
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The scale ranges from a pale yellow to a red in shade and is described in terms of the values 1-18.
The scale is typically used to measure the colour of resins, varnishes, lacquers, drying oils, fatty acids, lecithin, sunfl ower oil and linseed oil.
SAYBOLT COLOUR (ASTM D 156, ASTM D6045)
The Saybolt Colour scale is used for grading light coloured petroleum products. The colour range of the Saybolt-scale is similar to that of the Platinum-Cobalt/Hazen/APHA Colour (ASTM D 1209)/ TCU scale and is therefore employed for the measurement of water-clear, colourless to slightly yellowish products.
The faintest coloration is Saybolt-colour number +30, the strongest evaluable Saybolt coloration value is
-16. This scale is popular for aviation fuels, kerosene, naphthas, white mineral oils, hydrocarbon solvents and petroleum waxes.
ASTM COLOR (ASTM D 1500, ASTM D 6045, ISO 2049, IP196)
ASTM D1500 is a single number, one dimensional, color scale ranging from a pale straw through to a deep red in sixteen steps (0.5 - 8.0 units in increments of 0.5 units).
Please note the Chinese Industrial Standard SH/T 0168 (0 to 25) is directly related to ASTM D1500 (0 to 8.0).
Sometimes referred to as the “mineral oil color value”, the ASTM Color Scale is widely used for the grading of petroleum products such as lubricating oils, heating oils and diesel fuel oils.
Fully automated Lab, Online and Portable system
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