In the chemical industry, the precise determination of the colour of transparent liquid products such as benzene, ethylene and propylene, as well as solvents and various lubricating oils such as engine oil, is very important in development and quality management. To qualify the colour of petrochemicals, solvents and lubricants, an exact colour measurement in transmission is the appropriate procedure. Some of these products work with internationally defined colour numbers such as APHA/PtCo/Hazen, Gardner, Saybolt and others. HunterLab colour measurement offers the perfect solution for determining exact colour values and the right colour number at the same time.
The task
In addition to the precise measurement of CIE L*a*b* colour values, the reliable determination of various colour numbers is also desired when examining petrochemical liquids and oils. Colour measurement should be as simple and quick as possible.
Available colour numbers:
- APHA/Pt-Co/Hazen
- Gardner
- Saybolt
- ASTM D1500
- AOCS
- FAC
- Iodine
The solution
The Vista spectrophotometer can be used to precisely measure the transmission of transparent, liquid chemical products. In addition to the usual colour scales, all colour numbers commonly used in the chemical industry can also be displayed immediately during measurement (see box). Macro, semi-micro and ultra-micro cuvettes (made of glass or plastic) with a path length of 1 cm are usually used for colour measurement. This allows all colour numbers to be measured and output in the desired (standard-compliant) standard layer thickness.
The measurement is very simple:
- Fill the cuvette with liquid
- Insert the cuvette into the holder
- Trigger measurement
- Read measured values on the device
The Vista
- Analytical colour measurement system as a replacement for visual colour assessment. Measurement of colour, turbidity and haze!
- Measurement of the CIE/ASTM colour values and many colour numbers in the desired film thickness with output in the standard film thickness.
- Integrated EasyMatch Essentials quality control software (QC) – no PC required
- Flow-through cuvettes for continuous colour measurements available
- User-friendly standardization at the touch of a button – no accessories required
- Designed for speed: Delivers complete measurement results in less than a second
Das Zubehör
Folgende Küvetten mit passendem Halter:
- Rechteckküvetten mit Schichtdicken von 2mm bis 50 mm
- Makroküvetten (ab 2,5 ml)
- Semi-Mikroküvetten (ab 0,6 ml)
- Ultra-Mikroküvetten (ab 300 µl)
- Durchflussküvetten
