Blogs
How does EasyMatch QC-ER software comply with FDA 21 CFR Part 11?
Posted on by Ken Phillips
There are several parts to the 21 CFR Part 11 documents with a good overview of 21 CFR Part 11 at the US FDA website. Part C is the key section concerned with electronic records retention. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in several […]
Where can Liquid Gardner Color Standards be ordered?
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.
APHA = Pt-Co = Hazen = PCU = Platinum Cobalt Color
Posted on by Ken Phillips
“APHA” stands for American Public Health Association Color Scale, the organization responsible for the original definition and implementation of this visual color scale as a standard method for rating water quality. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in several industries. Today, […]
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 […]
Do HunterLab sphere instruments conform to ASTM D1003?
Posted on by Ken Phillips
Yes, but note there are two different approved instrument geometries cited in the ASTM 1003 method. 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 […]
Is there an Internet Site for converting and displaying color values?
Posted on by Ken Phillips
FAQ: “… Was wondering – do you know of a web site or application where if CIELAB values were entered, the corresponding color would be displayed? Can I also convert from one color scale to another?” Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business […]
Optimal inter-instrument agreement and communication of color values
Posted on by Ken Phillips
To communicate color values effectively, completely specify the 6 parameters of your measurement method and verify that your color measurement is repeatable. These are the key factors to ensure inter-instrument agreement. The best inter-instrument agreement in color measurement at multiple locations occurs when a product is measured with the same instrument model from the same […]
What is the Hunter Rd, a, b Color Scale?
Posted on by Ken Phillips
The Hunter Rdab opponent-color scale, developed in 1943, was an early version of the Hunter L, a, b scale. Instead of L, Rd is used to designate lightness and is identical to the CIE Y Brightness/Luminosity value. Sometimes the Rd, a, b color scale is shown as LRd, aRd, bRd. Ken PhillipsMr. Philips has spent […]
What are the NCI National Cheese Color Standards?
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.
What Path Length Cell should I use for APHA/Pt-Co/Hazen Color Measurement?
Posted on by Ken Phillips
FAQ: ” We are currently using a 10 mm path length and read in the 0 – 50 region for APHA/Pt-Co/Hazen Color, usually in the area of 10. Would you recommend a 10 mm path length with our equipment for this application?” Ken PhillipsMr. Philips has spent the last 30 years in product development and management, […]