What is ISO 8858-1- Laboratory procedure for froth flotation testing about?
ISO 8858-1 sets out a laboratory procedure for the froth flotation testing of fine coal, e.g. coal of particle size less than 0,5 mm. The procedure provides a means of evaluating the general flotation characteristics of a coal under a set of specified standard conditions, and will not necessarily indicate the full flotation potential of that coal.
The flotation characteristics of coals are sensitive to changes in flotation conditions. These conditions can be changed by varying basic parameters such as flotation time, reagent and dosage rate.
Separate flotation tests are specified in ISO 8858-1 to assess the effect of varying these parameters to determine the best flotation conditions for a particular coal. A method of evaluating flotation response will be given in a separate standard.
Who is ISO 8858-1- Laboratory procedure for froth flotation testing for?
ISO 8858-1 on laboratory procedure for froth flotation testing is useful for:
- Coal industry
- Thermal power plants
- Laboratories and testing houses
Why should you use ISO 8858-1- Laboratory procedure for froth flotation testing?
The froth flotation of coal has widespread application for the concentration and separation of fine coal particles from mineral matter. The response of coal to the froth flotation process is initially measured by a laboratory scale test. Although the principles used for the laboratory tests are generally similar, the precise type of equipment and techniques used vary considerably.
The procedure for the laboratory froth flotation test specified in ISO 8858-1 sets out, in detail, the type of equipment to be used and the methods to be adopted. The purpose of this procedure is to provide a standard method of test by which a preliminary evaluation of the froth flotation characteristics of a coal can be compared. This need is particularly important for exploration programmes.
ISO 8858-1 also serves as an introduction for operators who are not familiar with the techniques (and problems) associated with the laboratory froth flotation of coals.
What’s changed since the last update?
BS ISO 8858-1:2019 supersedes ISO 8858-1:1990. It also incorporates the Technical Corrigendum ISO 8858-1:1990/Cor.1:2001.
