Table 1 Summary of industrial analysis and test results of coal samples.

From: Study on the pore structure evolution and microscopic seepage characteristics of coal under high pressure air blasting

Number

Industrial analysis/%

Ro, max/%

Microscopic organic components/%

Ash (Ad)

Moisture(Mad)

Volatile(Vdaf)

Fixed carbon(FCad)

Vitrinite group

Inertinite group

Shell group

1

7.83

2.43

5.92

83.82

2.97

84.9

8.9

/

2

7.53

2.61

6.53

83.33

2.47

88.7

2.8

/

3

8.12

2.32

6.12

83.44

3.10

77.7

4.2

/