Energetic Hard Coal Physical and Chemical Characteristics
of strict necessity for SC CET IASI SA, for operating under safe and sound conditions

Crt.
No. Name of the parameter Symbol Value Measurement Unit Standard
1. Total moisture upon the initial test 7 ÷ 16 % STAS 5264/95
2. Ash upon the anhydrous test Aanh 12÷26 % STAS 5264/94
3. Fixed carbon 28 ÷ 59 % STAS 5268/90
4. Total carbon Cf 51÷73,2 % STAS 2905/81
5. Nitrogen N 0,6 ÷ 1,19 % STAS 6417/73
6. Hydrogen H 3,9 ÷4,4 % STAS 2905/81
7. Volatiles in the initial state Vi 22 ÷ 34 % STAS 5268/90
8. Net calorific power upon the initial test 5250 ÷ 6450 Kcal/kg SR – ISO 1928/95
9. Sulphur S max.1 % STAS 5270/90
10. Granulation - 0 ÷ 50 Mm STAS 9136/80
11 Hardness - max.50 H degree ISO 5074/91
12. Silicon Dioxide SiO2 max.50 % STAS 10274 – 3 -88
13. Ash softening temperature T 1050 ÷ 1150 0C STAS 993 -12-95
14. FR* 1,2 – 2,4 STAS 5268/90
ISO 562/98
Fixed Carbon (% dry matter)
* FR= ----------------------------------------
Volatile matter (% dry matter)