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Press Information Bureau
Government of India
Ministry of Coal
07-August-2014 15:31 IST
Category of Coal

                                As per the Colliery Control Rule 2004, Coal Controller Organisation (CCO) is the statutory body under Government of India who regulates the classification/categorisation/grading of coal mined in India.  As per the said provisions, Coal Controller shall lay down the procedure and method of sampling and analysis of coal for the purpose of declaration and maintenance of grade mined in a colliery.  This was stated by Sh. Piyush Goyal, Minister of state for Power, Coal & New and Renewable Energy (Independent Charge) in a written reply to a question in the Lok Sabha today. Following the procedure laid down by CCO the grades of coal seams at different collieries are declared every year.  Different categories / qualities of coal are being produced by Coal India Limited.  They are mainly (i) non-coking coal where grading is based on Gross Heat content (ii) Coking Coal where grading is based on ash % and (iii) Semi coking coal and weakly coking coal where grading is based on ash and moisture %.  Details are given below:-. 

(i)             Non-Coking Coal

Grade of Coal

Range of Gross Calorific Value 

In Kilo Calories

Grade of Coal

Range of Gross Calorific Value 

In Kilo Calories

G1

Greater than  7000

G2

Greater than  6700 and Less than 7000

G3

Greater than  6400 and Less than 6700

G4

Greater than  6100 and Less than 6400

G5

Greater than  5800 and Less than 6100

G6

Greater than  5500 and Less than 5800

G7

Greater than  5200 and Less than 5500

G8

Greater than  4900 and Less than 5200

 G9

Greater than  4600 and Less than 4900

G10

Greater than  4300 and Less than 4600

G11

Greater than  4000 and Less than 4300

G12

Greater than  3700 and Less than 4000

G13

Greater than  3400 and Less than 3700

G14

Greater than  3100 and Less than 3400

G15

Greater than  2800 and Less than 3100

G16

Greater than  2500 and Less than 2800

G17

Greater than  2200 and Less than 2500

 

 

 

(ii)      Coking Coal

 

Grade

Ash Content ( %)

Steel – I

Upto 15

Steel- II

Exceeding 15 and upto 18

Washery. I

Exceeding 18 and upto 21

Washery. II

Exceeding 21 and upto 24

Washery. III

Exceeding  24 and upto 28

Washery. IV

Exceeding 28 and upto 35

 

(iii)     Semi Coking and Weakly Coking Coal

 

Grade

Ash + Moisture Content ( %)

Semi Coking-I

Not Exceeding  19 %

Semi Coking –II

Exceeding 19 % but not exceeding 24 %

 

 

RM/RS-  USQ4067 – LS