Easily list your scientific equipment
Top suppliers for laboratory & industry
New and used instruments
This comparator has been designed to grade the colour of oils according to ASTM D1500 specifications.
Permanently coloured glass standards fitted into two discs are located either side of the oil sample under test, in order that the oil may be viewed in the centre of any two glass standards. This facilitates more accurate grading and is also ideal for viewing the sample between two predetermined limit colours.
The comparator has a colour corrected halogen light source closely corresponding to Illuminant C of the CIE system, guaranteeing an even field of view. The light source is also filtered through a flashed opal screen, housed within the lighting chamber.
Three glass sample and reference container tubes are supplied with the AF650 comparator, together with two discs of colour standards as follows:
DISC 1: 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5
DISC 2: 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0
QuestPair matches professionals in research and industry with manufacturers, suppliers and resellers of scientific products. Companies and organisations can easily sign up for an account and showcase their laboratory equipment and other products on the marketplace. It is possible to list both new as well as used equipment. QuestPair features a variety of equipment for the physical, chemical and life sciences such as spectrometers, balances, centrifuges, testing devices, medical devices, incubators, microfluidics kit, heaters, coolers and other specialist instruments.
Customer Service
Here to help you with: Product Inquiries, Shipping & Support, Technical Support, Business Inquiries and Press.
We are available to assist you Mon-Fri, 10am - 5pm CET.