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Carbon Blackness [My], Jetness [Mc], Undertone [dM] and Tint Strength [T]

How do you validate a APHA/Pt-Co/Hazen 500 liquid color standard?

Is it possible to create ASTM traceable haze standards above 30%?

The details of how HunterLab sphere instruments conform to ASTM D1003 Section 8: Procedure B Spectrophotometer for transmission haze measurement

How is ASTM D1003 Transmission Haze measured at levels > 30%?

Measuring Molded Plastic Parts

Do you know of an independent test lab that can measure APHA/Pt-Co/Hazen Color?

When do I use Specular Exclusion in Color Measurement?

What is a visual limit for Haze%?

ASTM Industrial Test Methods for visual and instrumental APHA Color Scale

Do you have a source for a Sample Conditioning Cabinet for Heat and Humidity?

Page 1 of 212»

Blogs

Carbon Blackness [My], Jetness [Mc], Undertone [dM] and Tint Strength [T]

Posted on June 2, 2015 by Ken Phillips

“Carbon black, also called charcoal black lamp black, pigment black, soot or black carbon, is a fine particle carbon pigment obtained as soot from the incomplete combustion of many different types of organic materials, such as natural gas, or oil. Carbon black is usually a fine, soft, black powder. It is very stable and unaffected […]

Posted in Chemical, Coatings, Color and Appearance Theory, ColorFlex EZ, EasyMatch QC, Plastic Tagged blackness, carbon, carbon black, dM, jet, jetmess, Mc, Mc jetness, My, My blackness, tint, tint strength, undertone Leave a comment

How do you validate a APHA/Pt-Co/Hazen 500 liquid color standard?

Posted on June 1, 2015 by Ken Phillips

As described in Section 6 of ASTM D1209, there are 2 criteria to validate a APHA/Pt-Co 500 standard: 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 […]

Posted in Chemical, Color and Appearance Theory, EasyMatch QC, EasyMatch QC-ER, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged absorbance, APHA, APHA color standard, Hazen, Pt-Co, PtCo, validation Leave a comment

Is it possible to create ASTM traceable haze standards above 30%?

Posted on September 12, 2014 by Ken Phillips

The current, available ASTM D1003 Haze Standards have nominal Haze% values of 1, 5, 10, 20 and 30 with air (transparent solids) or the transmission cell filled with DI water being 0 (transparent liquids). Here are some thoughts on further options. Ken PhillipsMr. Philips has spent the last 30 years in product development and management, […]

Posted in Chemical, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS, Uncategorized Tagged ASTM D1003, ASTM D1003 agreement, haze, Procedure B, transmission haze Leave a comment

The details of how HunterLab sphere instruments conform to ASTM D1003 Section 8: Procedure B Spectrophotometer for transmission haze measurement

Posted on July 2, 2014 by Ken Phillips

HunterLab sphere instruments with CIE d/8 geometries conform to the requirements of ASTM D1003 Section 8: Procedure B Spectrophotometer. The measurement of transmission haze using Procedure B instruments will be in close agreement with ASTM D1003 Procedure A Haze meter. Here is a more detailed description of how the HunterLab UltraScan PRO and UltraScan VIS […]

Posted in Chemical, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged ASTM D1003, ASTM D1003 agreement, haze, Procedure B, transmission haze Leave a comment

How is ASTM D1003 Transmission Haze measured at levels > 30%?

Posted on June 13, 2014 by Ken Phillips

FAQ: “We have a scientist here who is looking at films containing small bubbles and attempting to do measure them by measuring Haze% on a HunterLab spectrophotometer. I suspect her problem in obtaining numbers that “make sense” from what you get from just eyeballing the samples (and trying to look through them at the outlines […]

Posted in Chemical, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged ASTM D1003, CMR-2760 set, haze standards Leave a comment

Measuring Molded Plastic Parts

Posted on June 11, 2014 by Ken Phillips

HunterLab has instrument and sample handling devices to meet almost any customer needs. One such need that we are able to meet is the measurement of molded plastic parts, such as the one pictured above. These plastic parts are actually covers for a stud finder tool. The nature of these parts presents a few difficulties […]

Posted in MiniScan EZ, Plastic Tagged curved sample, molded plastic, plastic parts Leave a comment

Do you know of an independent test lab that can measure APHA/Pt-Co/Hazen Color?

Posted on June 6, 2014 by Ken Phillips

Contact the following and ask for “APHA/Pt-Co/Hazen Color testing per ASTM D1209 and D5386″. 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 […]

Posted in Chemical, Pharmaceuticals, Plastic, UltraScan PRO, UltraScan VIS Tagged APHA, cell path length, Hazen, Platinum Cobalt, Pt-Co, PtCo, test lab Leave a comment

When do I use Specular Exclusion in Color Measurement?

Posted on May 23, 2014 by Ken Phillips

FAQ: ASTM D6290 recommends that I measure my plastic pellets for yellowness using the specular exclude mode. What is this? 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 […]

Posted in Plastic, UltraScan PRO, UltraScan VIS Tagged clear window, glass correction, granules, oapque liquids, opaque, pellets, powder, reflectance specular excluded, reflectance specular included, RSEX, RSIN, specular exclusion, specular reflectance, translucent Leave a comment

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

ASTM Industrial Test Methods for visual and instrumental APHA Color Scale

Posted on August 18, 2013 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?” […]

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

Do you have a source for a Sample Conditioning Cabinet for Heat and Humidity?

Posted on June 25, 2013 by Ken Phillips

FAQ: “… I just need to find a way to better condition the samples for consistency. I  can get some pretty consistent results on my own, but once it’s in a general QC lab, it’s going to need some standardization.” Ken PhillipsMr. Philips has spent the last 30 years in product development and management, technical sales, […]

Posted in Color and Appearance Theory, Paper, Pharmaceuticals, Plastic, Textiles Tagged conditioning, conditioning cabinet, humidity, thermochromic Leave a comment
Page 1 of 212»

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