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A rating between 0 and 8 is awarded by identifying which one of the eight strips on the bluewool standard card has faded to the same extent as the sample under test. [4] [5] Zero denotes extremely poor colour fastness whilst a rating of eight is deemed not to have altered from the original and thus credited as being lightfast and permanent.
The Standard Reference Method or SRM [2] is a system modern brewers use to measure colour intensity, roughly darkness, of a beer or wort. The method involves the use of a spectrophotometer or photometer to measure the attenuation of light of a particular wavelength, 430 nanometres (blue), as it passes through a sample contained in a cuvette of ...
The BCC, under the Chairmanship of British lighting industry executive Leslie Hubble, [14] continued to publish colour codes through the 1960s, and while largely supplanted by the British Standards organisation, and commercial colour standards such as Pantone, the BCC codes are still referred to by industries in the United Kingdom [15] and used ...
APHA color, also referred to as the Hazen scale, and more appropriately as the Platinum Cobalt(Pt/Co) scale, [1] is a color standard named for the American Public Health Association and defined by ASTM D1209. [2] It was originally intended to describe the color of waste water, but its usage has expanded to include other industrial applications ...
The Farnsworth–Munsell 100 Hue Color Vision test is a color vision test often used to test for color blindness.The system was developed by Dean Farnsworth in the 1940s and it tests the ability to isolate and arrange minute differences in various color targets with constant value and chroma that cover all the visual hues described by the Munsell color system. [1]
The Color Association of the United States (CAUS), known until 1955 as the Textile Color Card Association of the United States (TCCA), is an independent color trend forecasting and color consulting service to the business community, known for its textile color swatch book, the Standard Color Reference of America (formerly the Standard Color Card of America).
Among other uses, the American national flag and many state flags are officially specified based on the Standard Color Reference, [1] as are those of a handful of other countries, such as the Philippines. [2] The Standard Color Reference of America was issued in 1915 for the purpose of simplifying color work by standardizing color for the U.S.
Color quality scale (CQS) is a color rendering score – a quantitative measure of the ability of a light source to reproduce colors of illuminated objects. Developed by researchers at NIST [ 1 ] the metric aims to overcome some of the issues inherent in the widely used color rendering index (CIE Ra, 1974).