The color is measured with various samples (color samples); the color sample is a set of color samples; each color sample has its own number and color characteristics.
In the actual application of the factory, the color samples of the existing products of the factory are used as the color standard.
For example, the same color standard can be applied to oil-based paints. Nitro enamel, Griffith enamel, etc. Such standards are not very applicable because their color and shade can change very quickly.
The author of this book and Rubinstein have worked out a set of standard Color Charts in order to standardize the color paints produced in industry.
All colors can be divided into ten categories: the first category one, red (from No. 1 to No. 99); the second category one color (from No. 100 to No. 199); the second category one yellow (from No. 200 to No. 1299) ;4th class—green (from 300 to 399); fifth class—blue (from 400 to 499); sixth class—purple (from 500 to .599); seventh class— Brown (from No. 600 to No. 699); the eighth category - protective color (from No. 700 to 799); the ninth category - self, gray and black and other colors (from No. 800 to 899); the tenth category - auxiliary color 1. Fawn, dirty green, political rose, ivory, etc. (from 900 to 999).
Each color is coded with a certain number, and according to the number, it can be determined which category the color should be classified into.
By comparing the tested color sample with the standard, its color can be measured.
Up to now, the standard Color Chart includes more than 150 colors, which can summarize all the colors in industrially produced paints.
The previously missing standards can be gradually added to the cards, and these successively added standards can be programmed with sequential numbers in categories that match their colors.
The standard color is coated on a colorless, light-resistant and 0.01 mm thick acetic acid, fiber film, and installed on a thick paper card.
On each card there are two standards of the same color, one glossy and the other matte, so that it is possible to compare colors that differ in gloss.
