Introduction
The value of coal depends on how much useful heat it can release and how much moisture and ash it carries. Proximate analysis and calorific value testing give a clear picture of both. At Chittor Test House, samples are prepared under controlled conditions, dried in calibrated ovens, ashed in a muffle furnace and fired in a bomb calorimeter to produce dependable results.
Reports clearly state the basis of each result (as-received, air-dried or dry), so they can be compared directly with supplier specifications and contract terms.
Test Parameters & Specifications
| Parameter | Reference method* | Equipment |
|---|---|---|
| Total moisture | IS 1350 (Part 1) / ASTM D3302 | Hot air oven, analytical balance |
| Inherent (air-dried) moisture | IS 1350 (Part 1) | Hot air oven |
| Ash content | IS 1350 (Part 1) | Muffle furnace |
| Volatile matter | IS 1350 (Part 1) | Muffle furnace |
| Fixed carbon | By difference (IS 1350 Part 1) | Calculated |
| Gross calorific value (GCV) | IS 1350 (Part 2) | Bomb calorimeter |
*Reference methods are indicative and are confirmed at the time of quotation. Additional parameters can be arranged on request.
Key Features
- Controlled sample preparation and division
- Duplicate determinations for reliability
- Dedicated hot room for conditioning
- Clear reports with method references
- NABL-traceable calibrated instruments
Applications
- Incoming coal acceptance at cement and power plants
- Fuel blending for kilns and boilers
- Supplier and consignment verification
- Trade and dispute resolution support
Benefits
- Pay for real energy – GCV data lets you compare price against actual heat value delivered.
- Protect equipment – knowing ash and volatile matter helps prevent clinkering and efficiency losses.
- Consistent quality – regular testing reveals variations between lots and suppliers early.
- Documented evidence – formal reports support contracts, audits and claims.
Industries Served
Cement plants, thermal and captive power plants, brick kilns, steel and sponge iron units, coal traders and importers, and process industries.