Preparation of Samples. a) Each sub lot will be mixed with equal quantity to make one lot on source-wise and grade-wise. b) The gross samples for the day for each delivery/loading point shall be separately crushed to (-) 5 cm by mechanical means, mixed thoroughly and quartered. c) Two opposite quarters shall be retained and the rest rejected. d) The retained material shall be further mixed, halved and one half retained. e) Material so obtained shall be crushed to 12.5 mm by a Jaw Crusher and then to 3.3 mm by a reduction mill / or jaw crusher. f) The crushed material shall be reduced either by coning and quartering or by ruffling to 2 kgs. g) The sample so reduced shall be finally ground to pass through 212 micron IS sieve. h) From the final sample passing through 212 micron IS sieve, 1.5 Kg shall be taken, which shall constitute the laboratory sample. i) Each laboratory sample shall be divided into two equal parts one for joint analysis by the Seller and the Purchaser at the loading end and the second to be kept as referee sample under joint custody of the Seller and the Purchaser. The sample shall be kept in glass or polythene container. j) In the event of any dispute (which shall be raised not later than 48 hours after analysis) at the time of joint analysis, the referee sample shall be analysed at a mutually agreed laboratory within 72 hours of the dispute, but not later than 8 days of the collection of the sample.
Appears in 2 contracts
Sources: Coal Supply Agreement, Coal Supply Agreement