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| Product name | Diameter 200 test sieve for laboratory |
| Color | Nature |
| Usage | Material Screening and Testing in Laboratory |
| Feature | Laboratory use |
| Hole shape | Square hole |
| Surface treatment | No |
| Wire Diameter | 2.00-0.020 |
| Packing | Dust-proof bag + wooden support |
| Size of sieve hole | 8.00-0.038 |
| Screen size | 5/16#-600# |
The test screen is mainly used for particle size classification and particle size detection of material particles. Granulology is an interdisciplinary, cross-technology, cross-industry comprehensive technical science, based on the theory of the discipline of the birth of the particle size testing instruments throughout the chemical engineering, metallurgy, materials, mining, machinery, construction, food, medicine and environmental protection and other fields. Often hear people say that the Taylor standard test screen, but most do not know what the Taylor standard is, in fact, it is not a standard, it is a Taylor formula, is said: in the case of known function at a point of each order derivative values, Taylor formula can use these derivative values as coefficients to build a polynomial to approximate the value of the function at this point in the neighborhood. Taylor's formula also gives the deviation between this polynomial and the actual function value. That is to say, each mesh size of the test set screen is based on the Taylor formula of the series, Taylor test screen is our country's current standard test screen provided for each series of mesh, our domestic mainly in accordance with the standard production enterprise is Xinxiang Bashan Aviation Materials Co., LTD. (540 factory), they are involved in the development of national standards of the main enterprises, It is also a promotion and habitual target enterprise.
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