Editing Sieve (section)

==Sieving==
Sieving is a simple technique for separating particles of different sizes. A sieve such as used for sifting flour has very small holes. Coarse particles are separated or broken up by grinding against one another and the screen openings. Depending upon the types of particles to be separated, sieves with different types of holes are used. Sieves are also used to separate stones from sand. Sieving plays an important role in food industries where sieves (often vibrating) are used to prevent the contamination of the product by foreign bodies. The design of the industrial sieve is of primary importance here.<ref>{{cite web|url=http://www.powderprocess.net/Checking_Powder_sieve.html|title=Powder Checking - Vibrating sieve - Vibrating sifters - PowderProcess.net|website=www.powderprocess.net}}</ref>

[[Triage]] sieving refers to grouping people according to their severity of injury.<!-- is this Triage Sieve related to article?-->