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1、INTERNATIONAL STANDARD 3963 INTERNATIONAL ORGiNlZATION FOR STANDARDIZATION MEXLJYHAPOnHAR OPrAHkl3AUHR n0 CTAHLIAPTWAWM .ORGANISATION INTERNATIONALE DE NORMALISATION -. _. :.:. stop the belt. Do not take a sample if there is a small feed at that time or if the flow has only just started or is just f
2、inishing. Once the belt has stopped, insert the two boards or metal sheets vertically down into the stream of fertilizer and at a sufficient distance apart to give an increment larger than the minimum mass required according to IS0 . . . Push the boards gently down until they are in contact with the
3、 belt across the whole section. 1) In preparation. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 21:47:27 MDTNo reproduction or networking permitted without license from IHS
4、-,-,- IS0 3963-1977 (E) Any fertilizer obstructing the insertion of the boards shall be pushed : a) in the case of the downstream board, into the sample; b) in the case of the upstream board, out of the sample. As quickly as possible, completely remove the material between the two boards into a suit
5、able air-tight container. Remove the boards or metal sheets and restart the conveyor. Make sure that nothing has been left on the belt which could cause damage further down the line. Repeat the process for each increment, the number or frequency of the increments being decided by the sampling scheme
6、. 6 SAMPLING REPORT The sampling report shall follow the provisions of IS0 . . . NOTE - Until this is published the following particulars shall be included : a) all information necessary for the complete identification of the sample; b) the method used, making reference to this International Standar
7、d; c) the sampling conditions; d) any operations not specified in this International Standard or regarded as optional, as well as any factors likely to have influenced the results. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 21:47:27 MDTNo reproduction or networking permitted without license from IHS -,-,-