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What is non-standard test sieve?

11/12/2014

Unconventional test sieve is also known as non-standard,it  is one kind of  vibration screen , it is  also the scene of large size materials (such as ore crusher product or paragraphs) particle size analysis, and self-made sieve set, it does not certain standards, sieve requirements less stringent, and there is manual, so called non-standard sieve or hand sieve. For particle size greater than 6mm material, sieve sieve analysis is generally used in a non-standard sieve (hand sieve). Sieve size determined according to need. Generally 150,120,100,80,70,50,25,12,8,6,3mm etc., because it is not universal, nor uniform mesh size regulations, the size of the screen is also different, according to various the need to create their own site.
Non-standard sieve can be punched or steel wire woven. Sieve analysis method is to use a mesh material of different sizes sieve for screening, the material is divided into several size fractions, and then were called quality, calculate the mass fraction of the total materials in various size materials
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