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Coal wood

(GOST 7657 – 84)

Charcoal – porous, fragile substance of brilliant black colour with bluish outflow in a break, keeping structure of initial wood. It is made by wood pyrolysis in vertical retorts in accordance with GOST 7657 – 84 marks «A» and «B».

Is the student of competition of  «100 best goods of Russia».

INDICATORS

NORM

Marks «A»

Marks «B»

1.

The Mass fraction of ashes, %

No more than 2,5

2,0

2,0

2.

The Mass fraction of nonvolatile carbon, %

No more than 90

89

88

3.

The Mass fraction of water, %

No more than 6

6

6

4.

With grains in places of loading, %
-the size less than 25 mm
-the size less than 12 mm

 

Not restricted
5

 

Not restricted
5

 

Not restricted
7

5.

The Maintenance firebrand

Is not supposed

Defoult

Defoult

It is applied by manufacture:

  • active coals carbon bisulphide
  • carburizer, electrocoal products
  • calcium-silicon, crystal silicon
  • nonferrous metals
  • in ferrous metallurgy

Packing:

  • paper bags: 2, 2,5, 5 kg
  • polyethylene bags 8, 9, 10 kg

© "Bashlesexport" Ltd., 2017
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