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APHA/Pt-Co/Hazen vs Gardner color scales: What’s the difference?

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Where does one find the EP (European Pharmacopoeia) Liquid Color Matching Standards?

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How do I perform an DQ IQ OQ PQ RQ using EasyMatch QC-ER?

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What Path Length Cell should I use for APHA/Pt-Co/Hazen Color Measurement?

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APHA/Pt-Co/Hazen vs Gardner color scales: What’s the difference?

Posted on October 22, 2012 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 […]

Posted in Chemical, Color and Appearance Theory, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged APHA, Gardner, Hazen, Platinum Cobalt, Pt-Co, PtCo 3 Comments

Where does one find the EP (European Pharmacopoeia) Liquid Color Matching Standards?

Posted on October 17, 2012 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 […]

Posted in Color and Appearance Theory, EasyMatch QC, EasyMatch QC-ER, Pharmaceuticals, UltraScan PRO, UltraScan VIS Tagged EP, European Pharmacopoeia Color Standards, pharma Leave a comment

How do I perform an DQ IQ OQ PQ RQ using EasyMatch QC-ER?

Posted on August 3, 2012 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 EasyMatch QC-ER, Pharmaceuticals Tagged Design Qualification, DQ, electronic records, electronic signatures, ER, EZMQC-ER, FDA 21 CFR Part 11 ERES, Installation Qualification, IQ OQ PQ, IQOQPQ, Maintenance Qualification, MQ, Operation Qualification, Performance Qualification, Requalification, RQ Leave a comment

What Path Length Cell should I use for APHA/Pt-Co/Hazen Color Measurement?

Posted on June 18, 2012 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, […]

Posted in Chemical, Color and Appearance Theory, EasyMatch QC, EasyMatch QC-ER, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged APHA, cell path length, Hazen, Platinum Cobalt, Pt-Co, PtCo, transmission cell Leave a comment
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