Six very useful tips for test sieve analysis
Datetime:2017-03-16 Hits:
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. To conduct the correct standard sieving analysis procedure, Glenammer engineers provide six tips below to help ensure the results are as accurate as possible.
Instruction
1. Monitor your laboratory conditions first
Before conducting the experiment, one factor that needs to be considered is the reaction of the material to ambient conditions. Please note that extremely dry conditions can cause fine powders to adhere to sieve components and each other with strong electrostatic charges.
2. Control the size of the sample
For a lot of experiments, the tendency is to use an excessively large sample to get more accurate test results. However, for test sieve 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. Consider using“relief screens”
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.
4. Adjust your oven temperature
Wet washing test sieve is a different method of analysis where liquid drains through a stack of sieves. After that, the residue needs to be dried - either over a hot plate or in an oven.
5. Attention on the test results
The starting sample weight should be recorded and compared with the finished total sample weight that is retained on the sieves after the experiment.
6. Sieve care and cleaning
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.
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