ISO 923:2000 PDF

Scope: This International Standard describes the principles and methods for evaluating the performance of equipment used for cleaning operations. Testing and sampling procedures are specified and methods of presenting test results are detailed. Performance parameters are recommended and defined and their determination is formulated, thereby allowing their use in evaluating, comparing and predicting performance levels of cleaning operations. This International Standard is applicable to the following types of coal cleaning equipment using relative density as the main characteristic for separation: a) dense-medium separators; b) jigs; c) other separators.

ISO 923:2000 Referenced Document

ISO 1170 Coal and coke — Calculation of analyses to different bases*， 2020-09-09 Update
ISO 1213-1 Coal and coke — Vocabulary — Part 1: Terms relating to coal preparation*， 2020-09-24 Update
ISO 1953 Hard coal - Size analysis by sieving*， 2015-11-15 Update
ISO 1988 Hard coal; Sampling
ISO 5048 Continuous mechanical handling equipment; belt conveyors with carrying idlers; calculation of operating power and tensile forces
ISO 7936 Coal — Determination and presentation of float and sink characteristics — General directions for apparatus and procedures*， 2022-08-15 Update

2022 ISO 923:2022 Coal — Density separation equipment for coal — Performance evaluation
2000 ISO 923:2000 Coal cleaning equipment - Performance evaluation
1975 ISO 923:1975 Coal cleaning tests; Expression and presentation of results