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High quality test sieve is the first choice in particle size analysis work for numerous reasons. For example, simple, efficient and low cost etc. All those reasons made the standard sieve analysis become the most widely use quality control procedure in any powder process control industry.

Instruction

1. Please note that extremely dry conditions can cause fine powders to adhere to sieve components and each other with strong electrostatic charges. The most accurate test sieve available would be of minimal use if the relative humidity in the test lab was 99%. 

2. However, for sieving analysis, the accuracy of the result will be reduced if the sample is too large because that will not permit each of the particles an opportunity to present themselves on the test sieve surface.

3. If the test with 50gram sample shows approximately the same percentage passing the fine sieve as 25gram sample, whereas 100 gram shows a much lower percentage, this would indicate that the 50gram sample is the appropriate sample size.

4. To avoid overloading any sieves and causing damage, care should be taken in selecting the proper sieve aperture sizes. Large concentrations of material to pass through the sieve will result in a large portion of material retained on the test sieve.

5. Test sieve should be kept clean and dry at all times. Like any other analytical laboratory equipment, they require regular care and should be ultrasonically cleaned to maintain their performance standard. There are many test sieves in WUZHOU KINGDA, if you are interested in our products, please feel free to contact us!