ISO-6153-1989.pdf
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1、INTERNATIONAL STANDARD IS8 6153 First edition 1989-09-01 Chromium ores - Increment sampling Minerals de chrome - ichantillonnage par pr m is the minimum number of wagons obtained by equa$lon (61; C is the load of the wagon, in tonnes. The result obtained shall be rounded up to the nearest whole numb
2、er to ensure adequate precision. Four increments shall be taken from each wagon selected. When the load of the wagon is not 66 tonnes, the number of in- crements to be taken from each wagon shall be obtained from the equation where nw -is the number of increments to be taken from wagons other than 6
3、6 tonnes wagons; C is the load of the wagon, in tonnes. The result, pbta,ined shall be rounded up to the nearest whole number, as little imp,rovement will be obtained by going to a higher whole tXanbe$ . I,. 7.1.3 The sampling of ore from stockpiles shall be conducted in accordance with the method s
4、pecified in 7.1.1, during the formation of the stockpiles or during the reclaiming of the stockpiles for their transfer to other places. 7.1.4 During the handling of ore by means of periodically filled and emptied containers (grab, bucket, skip, etc.), in- crements shall be taken manually, either on
5、 the new surface ex- posed during taking of the ore by the handling device or from ore poured out by the device onto a special platform, without making hollows, The number of containers to be sampled shall be not less than the required number of increments. The interval equal to a number of containe
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- ISO 6153 1989
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