BS ISO 10752:2019 pdf free.Coal sizing equipment一Performance evaluation.
The equipment to be tested, the actual feed composition, and the means of handling the feed and products vary widely. A single standard procedure is not applicable. The following general recommendations are made. a) The average feed rate and/or product flow rates should be determined by the most accurate method possible in the particular circumstances. Typical procedures that may be used are: 1]) direct assessment of the mass and/or volume of the whole of the feed or product during the test; 2) continuous assessment by means of a calibrated belt weigher or flowmeter and integration during the test; 3) weighing timed increments taken at regular intervals during the test. b) Samples should be taken from the actual feed and from each of the products. Sampling techniques, initial number of increments and minimum mass of each increment should be chosen so that all samples taken are representative. Sampling techniques, initial number of increments and minimum mass of increment for solids being conveyed by a fluid should comply with existing document, if available; for solids under other conditions, ISO 13909-1 to ISO 13909-4 and ISO 18283 shall apply as appropriate. NOTE Representative samples should be taken from all relevant streams to and from the equipment to be tested, to facilitate checking of results and assessment of the effects of degradation.The method and procedure of size analysis should be selected, as far as possible, to be in agreement with the principle of the equipment under test, to produce results in compatible terms. For example, the results of size analysis by sieving would be compatible with vibrating screens, and the results of size analysis by a series of small cyclones would be compatible with cyclone separators. Size analysis by sieving should be carried out in accordance with ISO 1953. The method and apparatus used, and the basis of the percentages (by mass or volume), shall be stated in the data sheet and in Table 1.BS ISO 10752 pdf download.