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AATCC published its first four color fastness test methods in 1923. 1964. AATCC built and moved into the Technical Center in Research Triangle Park, North Carolina in 1964. 1965. AATCC began conducting test method training programs in 1965. Durable press testing was the most popular training initially offered at the Technical Center. 1966
Standardized testing for colour fastness and other parameters was established in the 20th century by industrialized economies such as the US, the UK, Japan, and Europe. The American Association of Textile Chemists and Colorists (AATCC), International Organization for Standardization (ISO) and Society of Dyers and Colourists played vital roles ...
For example, if the lightfastness of the colourant is indicated to be 5 on the Blue Wool scale, it can be expected to fade by a similar amount as the strip number 5 in the Blue Wool test strip set. The success of the test can be confirmed by comparing the test strip set with the reference set that was stored protected from the light. [12] [13]
As per guidelines of National AIDS Control Organisation (NACO) for accurate results & mass screening, [citation needed] analysis using hemoglobinometer is a recommended method used for absorbance measurement of whole blood at Hb/HbO2/Isobestic point, [citation needed] based on microcuvette technology such as HemoCue 301 [6] and Mokshit-Chanda ...
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.
A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen prior to analytical testing.
The equipment required is a colorimeter, some cuvettes and a suitable color reagent. The process may be automated, e.g. by the use of an AutoAnalyzer or by flow injection analysis . Recently, colorimetric analyses developed for colorimeters have been adapted for use with plate readers to speed up analysis and reduce the waste stream.
Microfadeometry is a technique that uses tiny spots of intense light to probe and measure color changes in objects of art that are particularly sensitive to light exposure. [1] This process is completed using a recently designed instrument known as a microfading tester. The data from the test is represented by reflectance spectra.
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