| Domestic Grade (Fused) |
|
|
Tests |
Limits |
Method Ref. |
| Appearance |
Yellow colour fused mass |
Visual |
| Purity by GC |
99.6 % w/w Min. |
NQA 917 |
| PNCB by GC |
0.40 % w/w Max. |
NQA 917 |
| Others by GC |
0.10 % w/w Max. |
NQA 917 |
| DNCB by UV Visible
Spectrophotometer |
0.05 % w/w Max. |
NQA 924 |
| Water by Karl Fischer |
0.05 % w/w Max. |
NQA 509 |
| Set Point |
31.5°C Min. |
NQA 523 |
| |
|
|
| Export Grade (Liquid) |
|
|
Tests |
Limits |
Method Ref. |
| Appearance |
Yellow colour liquid at 40°C |
Visual |
| Purity by GC |
99.85 % w/w Min |
NQA 917 |
| PNCB by GC |
0.15 % w/w Max. |
NQA 917 |
| MNCB by GC |
0.05 % w/w Max. |
NQA 917 |
| DCNB by GC |
0.02 % w/w Max. |
NQA 917 |
| DNCB by UV Visible
Spectrophotometer |
0.01% w/w Max. |
NQA 924 |
| Water by Karl Fischer |
0.05 % w/w Max. |
NQA 509 |
| Set Point |
31.5°C Min. |
NQA 523 |
| |
|
|
| Export Grade (Fused) |
|
|
Tests |
Limits |
Method Ref. |
Appearance |
Yellow colour fused mass. |
Visual |
Purity by GC |
99.85 % w/w Min. |
NQA 917 |
PNCB by GC |
0.15 % w/w Max. |
NQA 917 |
MNCB by GC |
0.05 % w/w Max. |
NQA 917 |
DCNB by GC |
0.02 % w/w Max. |
NQA 917 |
DNCB by UV Visible
Spectrophotometer |
0.01 % w/w Max. |
NQA 924 |
Water by Karl Fishcer |
0.05 % w/w Max. |
NQA 509 |
Set point |
31.5°C Min. |
NQA 523 |
