COLLECTION OF SAMPLES FROM STOCKPILE a) For the purpose of sampling, the quantity of Coal in the stock pile shall be divided into a suitable manner of sub-lots as specified in the following table: Weight of the lot (MT) No. of Sub-lots Up to 500 2 501 to 1000 3 1001 to 2000 4 2001 to 3000 5 Over 3000 6
COLLECTION OF SAMPLES FROM STOCKPILE a) For the purpose of sampling, a lot shall comprise of sub-lots as set out in point 2.5b) below.
COLLECTION OF SAMPLES FROM STOCKPILE. For the purpose of sampling, the quantity of Coal in the stock pile shall be divided into a suitable manner of sub-lots as specified in the following table: Weight of the lot (MT) No. of Sub-lots Up to 500 2 501 to 1000 3 1001 to 2000 4 2001 to 3000 5 The surface of each sub-lot shall be leveled and one point for approximately every 250 MT of material in the sub-lots shall be chosen at random for taking gross sample as per the following procedure: In case height of the stock pile is not more than 1.5 metre, the material shall be collected at every selected point by taking the whole section of Coal from top to bottom over the area of a circle of 30 cm diameter. In case the height of the stock pile is more than 1.5 metre, the sample shall be collected at every selected point by taking the material over an area of a circle of 30 cm diameter and up to a depth of 1.5 metre.
