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Color Metrology

Color and Appearance

Range of colors chart used in NIST measurements

The National Institute of Standards and Technology measures color through a combination of sophisticated instrumentation and established standards:

1. Standards and Calibration

    • Primary Standards: NIST maintains primary color standards, such as spectral reflectance and transmittance standards, that are traceable to international measurement systems.
    • Calibration of Instruments: Instruments used for color measurement are calibrated using these standards to ensure accuracy and consistency.

2. Instrumentation

    • Spectrophotometers: These instruments measure the intensity of light at different wavelengths. They are used to obtain the spectral reflectance or transmittance of a sample.
    • Colorimeters: These are simpler instruments that measure color using a few broad wavelength bands. They are often used for less precise applications.

3. Measurement Process

    • Sample Preparation: The sample to be measured is prepared according to specific protocols to ensure uniformity and consistency.
    • Spectral Measurement: The spectrophotometer or colorimeter measures the light reflected or transmitted by the sample across the visible spectrum.
    • Data Collection: The data collected includes the spectral power distribution, which indicates how much light is reflected or transmitted at each wavelength.

4. Data Analysis

    • Color Spaces and Models: The raw spectral data is converted into color space coordinates (e.g., CIE XYZ, Lab) using mathematical models. These models account for human vision characteristics and provide a numerical representation of color.
    • Comparison and Reporting: The measured color can be compared to standard references or reported in various formats depending on the application (e.g., color difference ΔE).

5. Quality Control and Assurance

    • Repeatability and Reproducibility: NIST ensures the repeatability and reproducibility of color measurements by using rigorous quality control protocols.
    • Uncertainty Analysis: The uncertainty associated with the measurements is analyzed and reported to provide a clear understanding of the precision of the measurements.

Example Instruments and Techniques

    • Goniospectrophotometers: These measure the color of materials that change appearance with viewing angle.
    • Integrating Spheres: These are used with spectrophotometers to measure diffuse reflectance or transmittance.
    • Laser-based Systems: Advanced systems that use lasers for highly precise color measurements.

NIST’s methods are designed to provide highly accurate and reliable color measurements that can be used across a wide range of industries, including manufacturing, textiles, and digital imaging.

Standards Michigan: National Institute of Standards and Technology

 

THE GLOBAL LANGUAGE FOR COLOUR

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Colours determine our lives – consciously and subconsciously. They give us direction, influence our emotions, act as a means of communication, underline individuality and give us our identity. RAL colours have existed in all areas of our lives for decades and they set the colour standards for clear global communication of colour in architecture, design, skilled trades and industry.

Enter into the three RAL colour ranges with over 2,500 clearly specified shades for professional colour design. Find out on our website about our colour collections, our analogue and digital products as well as the latest trends from the world of RAL colours.

Paint Hazard Management

NFPA 1 Fire Code does not have a specific section dedicated solely to painting facility safety. However, there are several sections within NFPA 1 that address fire safety requirements relevant to painting facilities. These sections provide guidelines and standards for various aspects of fire prevention and protection. Here are some key sections within NFPA 1 that are relevant to painting facility safety:

  1. Chapter 10: Hazardous Materials: This chapter outlines requirements for the storage, handling, and use of hazardous materials, including paints, solvents, and flammable liquids. It covers topics such as storage limitations, ventilation, spill control, and fire protection measures.
  2. Chapter 13: Spraying, Dipping, and Coating Using Flammable or Combustible Materials: This chapter addresses specific fire safety requirements for spray booths, spray rooms, and dip tanks used in painting and coating operations. It covers aspects such as construction, ventilation, electrical equipment, ignition sources, and fire suppression systems.
  3. Chapter 15: Spraying and Dipping Operations: This chapter provides general requirements for spray finishing operations, including safety precautions, ventilation, electrical equipment, and handling of flammable or combustible materials.
  4. Chapter 16: Combustible Dust-Producing Operations: While not specific to painting, this chapter is important for facilities that generate combustible dust during surface preparation or other operations. It addresses fire and explosion hazards associated with combustible dust, providing requirements for dust control, ventilation, equipment, and other safety measures.

These sections highlight key areas within NFPA 1 that can guide painting facility safety. It is essential to consult the latest edition of NFPA 1 and any applicable local or state fire codes to ensure compliance with the most up-to-date requirements and regulations specific to your location and facility type.

UpCodes: Free Access to State Variations of NFPA 1

We maintain this title, and related titles in the NFPA catalog on the standing agenda of our periodic Paint colloquia; open to everyone.   Use the login credentials at the upper right of our home page.

GET TO KNOW YOUR CREWS: PAINT SHOP

 

Get to Know Your Infrastructure Planning and Facilities Paint Shop Crew

What Is A Standard Drink?

 

“It’s a fine line between Saturday night

and Sunday morning” – Jimmy Buffett

 

“Rather a bottle in front of me

than a frontal lobotomy” — Some guy

 

Many people are surprised to learn what counts as a “drink”. The amount of liquid in your glass, can, or bottle does not necessarily match up to how much alcohol is actually in your drink.  Even before the United States federal government withdrew from regulating alcohol, the conversation, and degree of agreement and  attitude, remains remarkably regionally specific:

Missouri University of Science & Technology: What is a Standard Drink?

University of South Alabama: What is a Standard Drink?

Stanford University Office of Alcohol Policy and Education

Other nations serve alcohol to students on campus in university owned facilities.

Maynooth University Student Union County Kildare


College students create the ultimate hangover cure


Wood-Fired Pizza

Dickinson College Financial Statement 2022: $873.4M

Dickinson College | Cumberland County Pennsylvania

“Every week, patrons of Farmers on the Square can count on locating the Dickinson College Farm’s wood-fired pizza oven right at the heart of the square. Our handmade and fresh-baked pizzas reflect the seasonal fluctuations on our farm in addition to quality ingredients grown within the Cumberland Valley. In addition to wood-fired pizzas, our stand features seasonal organic vegetables, fresh salad dressings, refreshing popsicles and “our farm in a jar” through canned soups, pickled favorites, salsa, hot sauce and more!”

Home Page

Pennsylvania

British High Schoolers Try American Biscuits & Sausage Gravy

Biscuits and sausage gravy is firmly rooted in Southern American cuisine, which has a rich history influenced by African, Native American, European, and other culinary traditions. The combination of biscuits and sausage gravy reflects the availability of ingredients in the South, where biscuits (similar to a type of British scone) and pork products were common.

The concept of biscuits, similar to what Americans call biscuits, has British origins. Early settlers brought this baking technique with them to the American colonies. However, the American biscuit evolved over time to become lighter and fluffier compared to the denser British biscuit.

Kitchens 300

Standards Australia

Department of Industry, Science and Resources

Evolution of the standards system in Australia is tracking the evolution of the United States standards system administered by the American National Standards Institute. In many economic sectors adherence to Australian Standards is mandated by legislation, however, access to the standards are often cost prohibitive, particularly to small business and sole traders.

Principal petitioner Andrew Gardso, an electrical engineer, states,

“This in essence will force small organisations and sole traders out of business or necessitate services being performed without having access to these standards.”

Access to Standards Australia Construction codes can cost more than $2673 for three years’ access to the National Construction Code set of standards.  A petition to the Australian parliament’s House of Representatives seeks free or affordable access to essential standards that govern the safety and consistency of products services and systems, including design and construction.

Wiring Rules

Vertical Transportation Experience

Sheep and Wool

Survey and Analysis of Current End-User Data Analytics Tool Support

Elevatorpedia

Net Zero Initiative

Three ways Artificial Intelligence is transforming agriculture and food

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Incorporation by Reference

Canadian Parliament Debate on Standards Incorporated by Reference

 

 

Information technology for learning, education and training

Illustration from 1913 showing Pythagoras teaching a class of women. Pythagoras believed that women should be taught philosophy as well as men and many prominent members of his school were women.

We follow the catalog of best practice titles developed by a joint committee of the International Organization for Standardization and the International Electrotechnical Commission that should interest educational institutions with an interest in capturing revenue from students outside their home country (which is nearly every educational organization as far as we can see, save for secondary school districts).

ISO/IEC JTC 1/SC 36 Information technology for learning, education and training is charged with standardization in the field of information technologies for learning, education, and training to support individuals, groups, or organizations, and to enable interoperability and reusability of resources and tool. Excluded from this scope are: •standards or technical reports that define educational standards (competencies), cultural conventions, learning objectives, or specific learning content.  Work done by other ISO or IEC TCs, SCs, or WGs with respect to their component, specialty, or domain. Instead, when appropriate, normative or informative references to other standards shall be included. Examples include documents on special topics such as multimedia, web content, cultural adaptation, and security.   The landing page for all ISO/IEC JTC 1 is linked below.

ISO/IEC JTC 001/SC 36 “Information technology for learning, education and training”

The Korean Agency for Technology and Standards is the Global Secretariat.  INCITS is ANSI’s US Technical Advisory Group administrator.   CLICK HERE for a list of committees.

We maintain the work products of this committee on the standing agenda of our Global, ICT and Acoustics colloquia.  See our CALENDAR for the next online meeting; open to everyone.

Issue: [13-100]

Contact: Mike Anthony, Christine Fischer, Paul Green

Category: Academic, Finance, Global, ICT

Freely Available ICT Standards

LEARN MORE:

Workspace ISO/IEC JTC1

Gulliver visits the Great Academy of Lagado

In Irish author Jonathan Swift’s 1726 satire — “Gulliver’s Travels” — Lagado is the capital of Balnibarbi whose king had invested a great fortune on building an “Academy of Projectors” so that it shall contribute to the nation’s development through research.

Gulliver describes pointless experiments conducted there — trying to change human excretion back into food, trying to extract sunbeams out of cucumbers, teaching mathematics to pupils by writing propositions on wafers and consuming them.

“Gulliver’s Travels” 1939 Production | (Max Fleischer (1883 – 1972)

“None are so blind as those who refuse to see” is a proverbial expression that has been used by many authors and public figures throughout history. The exact origin of the phrase is unknown, but it has been attributed to various sources, including the Bible, where Jesus says, “For judgment I am come into this world, that they which see not might see; and that they which see might be made blind” (John 9:39, King James Version).

The phrase has also been attributed to Jonathan Swift, an Irish author and satirist, who wrote in his 1738 work,

“Polite Conversation”: “Blind, sir? I see every day where Lord M– goes upon the bench without his bag, and you tell me he is not blind?”.

However, it is possible that the phrase existed prior to Swift and was simply popularized by him.

Internet Archive: Gulliver’s Travels

Gallery: Other Ways of Knowing Climate Change

Eric Weinstein: We need a scientific revolution

 

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