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What is the CP – Chinese Pharmacopeia Color Scale?

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How is polarization minimized in HunterLab sphere instruments?

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What tolerance should be used for a PQ Performance Qualification on Transmission Color Measurements?

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Does the White Tile stay at the Reflectance Port during Transmission Readings?

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Do you have a source for Transparent Liquid Haze Standards?

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What is a visual limit for Haze%?

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Can HunterLab instruments measure APHA/Pt-Co/Hazen Color above 500?

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What is the CP – Chinese Pharmacopeia Color Scale?

Posted on May 5, 2014 by Ken Phillips

FAQ: “More customers are asking us about Chinese Pharmacopeia Numbers… is this similar to EP/USP Color? 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 […]

Posted in Pharmaceuticals, UltraScan PRO, UltraScan VIS Tagged Chinese Pharmacopoeia Color Standards, CP, EP, European Pharmacopoeia Color Standards, pharma, visual color standards Leave a comment

How is polarization minimized in HunterLab sphere instruments?

Posted on April 2, 2014 by Ken Phillips

FAQ: “Do you sell a depolarizer for my HunterLab sphere instrument?  On occasion we test polarized samples and there is definitely a dependence on the orientation of the lens.  I was wondering if adding a depolarizer would eliminate this phenomenon?” Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical […]

Posted in Color and Appearance Theory, UltraScan PRO, UltraScan VIS Tagged polarization, polarize, polarizer Leave a comment

What tolerance should be used for a PQ Performance Qualification on Transmission Color Measurements?

Posted on March 7, 2014 by Ken Phillips

FAQ: “What is the limit on the standardization in TTRAN.  Using the small sample flask, filled with Ultra pure water. If they follow the protocol, they expect to find values (CieLab: 100.0; 0.0; 0.0)?” Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, marketing, and business development in […]

Posted in UltraScan PRO, UltraScan VIS Tagged Performance Qualification, PQ, total transmission, Transmission, TTRAN Leave a comment

Does the White Tile stay at the Reflectance Port during Transmission Readings?

Posted on March 7, 2014 by Ken Phillips

FAQ: “Do we have to keep the white tile at the reflectance port during transmission readings?” 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 […]

Posted in UltraScan PRO, UltraScan VIS Tagged total transmission, Transmission, TTRAN, white tile, white tile standard Leave a comment

Do you have a source for Transparent Liquid Haze Standards?

Posted on February 8, 2014 by Ken Phillips

HunterLab Distributor FAQ: “I have a new pharma customer doing color measurements.  They also want to do haze measurements and we had a discussion about haze standards.  Would our plastic haze standards be fine or is there a liquid haze standard out there?” Ken PhillipsMr. Philips has spent the last 30 years in product development […]

Posted in Pharmaceuticals, UltraScan PRO, UltraScan VIS Tagged clear, EPOP, haze, hazey, NTU, NTUs, opalescence, scattering, total transmission, transmission haze, turbidity 2 Comments

What is a visual limit for Haze%?

Posted on February 7, 2014 by Ken Phillips

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% […]

Posted in Chemical, Color and Appearance Theory, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged clear, haze, hazey, scattering, total transmission, transmission haze Leave a comment

Can HunterLab instruments measure APHA/Pt-Co/Hazen Color above 500?

Posted on February 7, 2014 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.

Posted in Chemical, Pharmaceuticals, UltraScan PRO, UltraScan VIS, Uncategorized Tagged APHA, cell path length, Hazen, Platinum Cobalt, Pt-Co, PtCo, references, transmission cell Leave a comment
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