Preparation of laboratory samples. 2.2.1 The gross sample collected at the Delivery Point by the Third Party Agency shall 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 will be used for determination of ash, moisture and GCV on equilibrated basis. The Third Party Agency shall prepare laboratory samples (at the Delivery Point) in the size of 12.5mm for total moisture and 212 micron IS Sieve for proximate and GCV analysis. Precaution shall be taken so that before analysis in any government accredited laboratory or National Accreditation Board for Testing and Calibration Laboratories (―Laboratory), further sieving or pulverizing is not required.
2.2.2 The Part-2 sample shall be reduced into a laboratory sample on the date immediately following the date of collection as per BIS Standards (IS: 436 (Part I/Section I) - 1964). The final pulverized sample will be divided into three parts viz. Set – I, Set – II and Set- III as follows:
(a) Set – I shall be taken by the Third Party Agency to a Laboratory for analysis of ash, moisture and GCV by the Third Party Agency as per BIS Standards (IS: 1350 Part 1-1984) or BIS Standards (IS: 1350 Part-II-1970), as applicable;
(b) Set-II of the sample shall be handed over by the Third Party Agency to the Seller for their own analysis; and
(c) Set-III of the sample called referee sample shall be sealed jointly by the Third Party Agency and representatives of the Parties and shall be kept with the Third Party Agency at the Delivery Point under proper and good quality lock and key arrangement. The referee sample shall be retained in double sealed condition (duly signed by the representatives of the Parties and the Third Party Agency) for 30 (thirty) days from the date of sample collection. The referee sample shall be analyzed in the situations specified in paragraph 2.2.4 below.
2.2.3 The Third Party Agency shall communicate the analysis result of the sample to the Parties within 18 (eighteen) working days of the sample collection. Either Party may raise a dispute, if any, regarding the findings of the Third Party Agency within 7 (seven) days of the submission of the analysis result by the Third Party Agency.
2.2.4 In the event that a dispute is raised by either Party within the time period stipulated at paragraph 2.2.3 above, the referee sample shall be analyzed by a mutually agreed government laboratory (oth...
Preparation of laboratory samples. The gross sample collected at the loading end by the TPA shall be divided into two portions. One portion (one fourth of the gross sample) called Part - 1 shall 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.
Preparation of laboratory samples. 2.3.1 The gross sample collected at the loading end by the Third Party Agency shall be divided into two portions. One portion (one fourth of the gross sample) called Part - 1 shall 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.
2.3.2 The Part-2 Sample shall be reduced into laboratory sample. For the general procedure for reduction of gross sample and preparation of moisture sample and laboratory samples, IS : 436 ( Part I/Set I )-1964 ( latest version) shall be followed.
2.3.3 Final Laboratory samples shall be in the size of 12.5 mm for determination of Total Moisture and in the size of (-) 212 µ (micron) IS sieve for determination of ash, Equilibrated Moisture (at 40°C and 60% RH) and GCV. Due care shall be taken by the Third Party Agency to ensure that the final lab sample is essentially in(-) 212 µ (micron) size before the same is collected from the loading point(s) so that no further sieving or pulverizing is warranted at the laboratory before analysis.
2.3.4 The final pulverized sample shall be divided into four equal parts viz. Set - I, Set - II, Se – III and Set - IV of 500 gms each as detailed below:
(a) Set - I shall be taken by the Third Party Agency to a NABL Accredited Laboratory for analysis of ash, moisture and GCV ( on equilibrated conditions' basis at 40° and 60% RH) as per latest BIS Standards (IS: 1350 Part 1-1984, reaffirmed 2019) or (IS 1350 Part-2 :2022), as applicable;
(b) Set-II of the sample shall be handed over by the Third Party Agency to the Seller
(c) Set-III of the sample shall (i) in case of mode other than road, be handed over by the Third Party Agency to the Purchaser; and (ii) in case of road mode, be handed over in equal portions to all of the Purchasers Opting for Sampling on that particular day; and
(d) Set- IV of the sample called Referee Sample shall be sealed jointly by the Third Party Agency in the presence of the authorized representatives of each of the Parties (in case of mode other than road) or representatives of each of the Purchasers Opting for Sampling (in case of road mode), as the case may be, and shall be kept in custody of the TPA at the Delivery Point ( loading point) under proper and good quality lock and key arrangement. The referee sample shall be retained in double sealed condition (duly signed by the Third Party Agency and the authorized representative of the Parties or ...
