Standard criteria and specifications for colorimeter

Each industry has its own standards, colorimeter industry is not another, with clear standards and norms producers in the production of a basis to rely on, there is a reason to find. An industry's industry standards directly determine the nature and quality of such products, we know that the colorimeter is a colorimeter is used to measure the color characteristics of the object and the difference between the instrument. Colorimeter is also become colorimeter. Color difference meter, color difference analyzer, color difference tester, color difference tester, color difference tester, color difference meter, color difference calibrator, color difference meter, pigment color difference meter and so on. In fact, many of the implementation standards of this instrument are the production standards followed by various industries, the instrument in the research and development phase of the R & D staff will take into account these issues directly in the instrument internal settings of these rules. 

Part of the executive standards of the colorimeter are as follows: 

GB 7973: Pulp, paper and paperboard diffuse reflectance factor determination (d/o). 

GB 7974: paper and paperboard whiteness determination method (d/o). 

GB 7975: Determination of color of paper and paperboard (d/o). 

ISO 2470: paper and paperboard blue light diffuse reflection factor determination method (ISO whiteness). 

GB 3979: Measurement method of object color. 

GB 8940.2: Method for the determination of pulp whiteness. 

GB 2913: Test method for whiteness of plastics. 

GB 1840: Determination of industrial potato starch. 

GB 13025: General test method for salt industry, determination of whiteness. Textile industry standard: Determination of whiteness of pulp for chemical fiber. 

GB T/5950: Measuring method for whiteness of building materials and non-metallic mineral products. 

GB 8425: Instrumental evaluation method for textile whiteness. 

GB 9338: Method for determining the whiteness of fluorescent whitening agents. 

GB 9984.1: Determination of whiteness of industrial sodium tripolyphosphate. 

GB 13176.1: Determination of whiteness of washing powder. 

GB/T 13835.7: Test method for whiteness of rabbit hair fiber. 

GB 4739: Method for the determination of the chromaticity of daily-use ceramic pigments. 

GB 6689: Determination of color difference of dyes, instrumental method. 

GB 8424: Method for the determination of color and color difference of textiles. 

GB 11186.1: Measurement method of color of coated film. 

GB 11942: Measurement method of chromaticity of colored building materials. 

GB 13531.2: Measurement of color tri-stimulus value and color difference △E* of cosmetics. 

GB 1543: Measurement method of opacity of paper. 

ISO 2471: Method for the determination of opacity of paper and cardboard. 

GB 10339: Determination of light scattering coefficient and light absorption coefficient of paper and pulp. 

GB 12911: Determination of ink absorption of paper and paperboard. 

GB 2409: Test Method for Plastic Yellow Index. 

These executive standards are only a part of the colorimeter standard is relatively major, there are many industry standards is also the basis of the colorimeter R & D, here will not be listed.  

Color field is divided into: colorimeter, colorimeter, spectrophotometer, desktop spectrophotometer, different levels of instruments can measure the absolute value of LAB and the total color difference relative value △ E value, but the colorimeter mainly observe the relative value of △ E value, spectrophotometer can observe the absolute value of Lab and △ E relative value.