PREPARATION OF COLLECTED SAMPLES Sample Clauses

PREPARATION OF COLLECTED SAMPLES a) The gross sample collected at the loading end by the TPA will be divided into two portions. One portion (one fourth of the gross sample) called Part – 1 will be used for analysis of Total Moisture and the other portion (three fourth of the gross sample) called Part – 2 for determination of ash, moisture and GCV on Equilibrated Basis. b) The Part-2 Sample shall be reduced into laboratory sample either manually or mechanically or a combination of these two methods. The final laboratory samples will be divided into four parts viz. Set – I, Set – II, Set – III and Set – IV as per point 2.1k). Further preparation of sample is to be done as per latest version of IS 436 (Part I-Sec. II)-1976.
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PREPARATION OF COLLECTED SAMPLES. 1.6.1 The Gross Sample collected at the loading end by CIMFER will be divided into two portions. One portion (one fourth of the Gross Sample) called Part-1 will be used for analysis of Total Moisture and the other portion (three fourth of the Gross Sample) called Part-2 for determination of ash, moisture and GCV on Equilibrated basis. 1.6.2 The Part-2 Sample shall be jointly reduced into laboratory sample on the date immediately following the date of collection. The final laboratory samples will be divided into three parts viz. Set – I, Set – II,Set-III and Set-III • Set – I shall be used for analysis of ash, moisture and GCV at Purchaser’s end as per BIS standards IS 1350 Part-I-1984 and IS 1350 Part-II-1970 as applicable. • Set – II shall be used for analysis of ash, moisture and GCV at Seller’s end as per BIS standards IS 1350 Part-I-1984 and IS 1350 Part-II-1970 as applicable. • Set – III shall be used for analysis of ash, moisture and GCV at Purchaser’s end as per BIS standards IS 1350 Part-I-1984 and IS 1350 Part-II-1970 as applicable. • Set-IV shall be the referee sample. a) The Gross Samples for each Delivery Point shall be separately crushed to (-) 5 cm by mechanical means, mixed thoroughly, coned and quartered. b) Two opposite quarters shall be retained and the rest rejected. c) The retained material shall be further mixed, halved and one half retained. d) Material so obtained shall be crushed to 12.5 mm by a Jaw Crusher and then to 3.3 mm by a palmac type of reduction mill/ or jaw crusher. e) The crushed material shall be reduced either by coning and quartering or by ruffling to 2 kgs. f) The sample so reduced shall be finally ground to pass through 212 micron IS sieve using a Xxxxxxx mini mill. g) From the final sample passing through 212 micron IS sieve, 1.5 Kg shall be taken, which shall constitute the laboratory sample. h) Such laboratory sample shall be divided into three equal i.e. Set-I, Set-II and Set-III as mentioned at 1.1(h). The sample shall be kept in glass or polythene container. i) All tools and tackles, plastic bags, sealing compound and other items required for collection, preparation, storage and analysis of the sample shall be arranged by the Seller.
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