Coal and Mineral Preparation Laboratory
The Coal and Mineral Preparation Laboratory (CMPDI) is an NABL-accredited laboratory. We provide comprehensive testing services for RoM coal, washery clean & rejects, and bore core coal samples. Our laboratory conducts washability testing for both coking and non-coking coal, as well as other relevant tests in accordance with Indian standards and ASTM, leveraging the technical expertise of our dedicated team and state-of-the-art equipment.
Basic Services Offered:
1. Supervision in Collection of coal sample
2. Logging of Bore Core coal sample
3. Sample Preparation
• Crushing of coal sample to different sizes
• Screening of coal sample at various sizes
• Pulverization of coal sample
4. Washability testing (float & sink)
5. Proximate Analysis (Ash %, Moisture %, Volatile Matter %, Fixed Carbon %)
6. Determination of Gross Calorific Value (GCV)
7. Moisture% at 60% Relative Humidity & 40℃ (Equilibrated basis)
8. Determination of characteristics of Fine Coal (- 0.5mm)
• Froth Flotation Test
• Size Analysis by Wet Sieving
9. Determination of Hardgrove Grindability Index (HGI)
10. Determination of Coking properties of Coal
• Swelling Index (SI)
• Low Temperature Gray King Assay (LTGK)
Our laboratory ensures the highest quality standards in coal testing and analysis, offering critical insights to support coal beneficiation and utilization processes.






