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Technical Specification
N-762,772,774 grades

A wet-pelleted furnace carbon blacks produced from oil and meet the requirements of this specification.
                                                                                                                                                                                                                                                                                                 


N

Specification

UNITS

VALUES / grade

ASTM test
method

 

 

 

N762

N772

N774

 

1

Iodine Adsorption Number

g / kg

27 ± 7

30 ± 6

29 ± 7

D 1510

2

Oil Absorption Number

105m3/ kg

65 ± 6

65 ± 6

72 ± 6

D 2414

3

Surface Area by Nitrogen Adsorption (NSA)

103m2/kg

29 ± 7

 

 

D 6556

4

Sieve Residue:

 

 

 

 

 

 

  1. No. 325 US Std. Sieve

%, max

0.1

0.1

0.1

D 1514

 

  1. No. 35 US Std. Sieve

%, max

0.001

0.001

0.001

5

Heating Loss at 125° C

%, max

1.5

1.5

1.5

D 1509

6

Ash Content

%, max

1.0

1.0

1.0

D 1506

7

Pour Density

kg / m3, min

440

440

440

D 1513

8

Fines Content:

 

 

 

 

 

 

Bulk
packet, bags

%, max

8.0
12.0

8.0
12.0

8.0
12.0

D 1508

9

Transmittance of toluene extract

%, min

 

 

75

 

 


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