A sieve calibration is used to establish the size of separation achieved by a particular sieve. This involves the use of standard materials and microscopic examination of the material passing through the sieve. The material is placed on the sieve and sieving proceeds until the mass passing appears unchanged. The material which has passed is examined under a microscope to determine the size of particles. This information is used to find an average equivalent volume diameter which represents the effective size of the sieve.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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