FAQ: “What is a visual limit for Haze%? When should I be able to see a difference in a sample?” A perfect clear of 0% would be air for transparent solids and the transmission cell of a defined path length filled with DI water for transparent liquids. It should also be noted that the Haze% […]
In the two glass window panes above you can probably notice a difference in the transmission color between the two. The one on the left appears greener while the one on the right appears bluer. There is another difference; the two samples have a difference in reflectance as well. The sample on the left has […]
FAQ: “Does HunterLab have any documentation to show that the ColorQuest XE is compliant with ASTM 1209. One of our customers is having a problem regarding the method. Their client is using the manual visual method for performing the ASTM 1209 color test method whereas they use the ColorQuest XE. Can you explain the difference?”
The retroviewer feature on the UltraScan PRO and UltraScan VIS allows direct viewing of the sample at the port through the same lens used to make color measurements. This feature is also on some LabScan XE and ColorQuest XE models. This feature is particularly useful for aligning the sample if it barely covers the viewing port of the instrument.
A flow through cell can be a handy solution for continuous sampling and ease of measurement with a transparent, liquid product.
The 4 mm Port Plate (A02-1010-838 ) masks down the 6 mm viewed sample area in Small Area of View (SAV) to a 4 mm diameter aperture. It is intended to be used only when the sample is smaller than the 9.5 mm diameter of the normal SAV port.
You can order single Haze standards or the full set of 5 haze standards through HunterLab for use with any of our sphere instruments – ColorQuest XE, UltraScan PRO and UltraScan VIS. These solid, transparent plastic plaques (calibrated or uncalibrated) can be effective in monitoring instrument performance in measuring wide angle scattering over time.
These APHA/Pt-Co/Hazen liquid color standards were originally developed as references for visual APHA/Pt-Co/Hazen Color comparison to samples. Their role with instrumental APHA/Pt-Co/Hazen Color measurement is primarily as a performance qualification check of the instrument prior to measuring liquid product samples, or to validate the instrumental-to-visual correlation. HunterLab instruments have their own internal diagnostic standards to verify […]
HunterLab’s round cell (A13-1011-613) is a practical small volume cell for transmittance color and haze measurements.