Blogs
ASTM Industrial Test Methods for visual and instrumental APHA Color Scale
Posted on by Ken Phillips
FAQ: “Does HunterLab have any documentation to show that the UltraScan VIS 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 UltraScan VIS. Can you explain the difference?” […]
Use of the Retroviewer to align small samples
Posted on by Ken Phillips
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 Agera models. This feature is particularly useful for aligning the sample if it barely covers the viewing port of the instrument. Ken PhillipsMr. Philips has […]
What are the Flow Cell Options for Transparent Liquids?
Posted on by Ken Phillips
A flow through cell can be a handy solution for continuous sampling and ease of measurement with a transparent, liquid product. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in several industries. Today, he is the global market development manager for HunterLab, focused on […]
Conformance summary of how HunterLab sphere instruments measure ASTM D1003 Transmission Haze
Posted on by Ken Phillips
Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in several industries. Today, he is the global market development manager for HunterLab, focused on understanding customer needs, providing appropriate solutions and education, and helping to solve customer color challenges across these industries and cultures.
Source for ASTM D1003 Transparent Plastic Haze Standards from HunterLab
Posted on by Ken Phillips
You can order single Haze standards or the full set of 5 haze standards through HunterLab for use with any of our sphere instruments – 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. Ken PhillipsMr. Philips has spent the last […]
Source for the APHA/Pt-Co/Hazen Color Standards
Posted on by Ken Phillips
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 […]
How do I use the round Small Volume (4 ml) 10 mm Transmittance Cell?
Posted on by Ken Phillips
HunterLab’s round cell (A13-1011-613) is a practical small volume cell for transmittance color and haze measurements. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in several industries. Today, he is the global market development manager for HunterLab, focused on understanding customer needs, providing appropriate […]
How do I measure the color of semi-solid materials?
Posted on by Ken Phillips
One thing to keep in mind when measuring creams, gels, pastes, and other semi-solid materials is to maintain a consistent sample thickness. One option is to “sandwich” a fixed quanity of your semi-solid material in a suitable clear-bottomed container, so that it can be placed at the port for measurement. Ken PhillipsMr. Philips has spent […]
How do I measure “clear and colorless” Surfactants?
Posted on by Ken Phillips
FAQ: “We are in touch with a pharmaceutical company which is looking for a spectrophotometer to measure the color and appearance of cationic surfactants. Can you provide any information on this topic?” Surfactants reduce the surface tension of a liquid as in the use of a dish detergent; the interfacial tensions between two liquids such as in the case of […]
APHA/Pt-Co/Hazen vs Gardner color scales: What’s the difference?
Posted on by Ken Phillips
The APHA/Pt-Co/Hazen and Gardner visual color scales were both originally based on liquid chloroplatinate color standards but have different history and intended use. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in several industries. Today, he is the global market development manager for […]
Where does one find the EP (European Pharmacopoeia) Liquid Color Matching Standards?
Posted on by Ken Phillips
EP – European Pharmacopoeia Color is a visual liquid color scale used primarily in the pharmaceutical industry. It consists of 3 primary color standard solutions (yellow, red and blue) mixed with hydrochloric acid to make 5 standard color solutions – B (brown), BY (brownish-yellow), Y (yellow), GY (greenish-yellow) and R (red). Ken PhillipsMr. Philips has […]