|
Percentage On: shaved weight
Ref No: 17
Thickness (mm): 1.6
|
Process |
% |
Chemical |
oC |
Time(min) |
PH |
Comments |
|
Washing |
200 |
Water |
40 |
|
|
|
|
|
0.3 |
Rockol 642 |
|
|
|
|
|
|
0.2 |
Formic acid |
|
20 |
|
|
|
Drain |
|
|
|
|
|
|
|
|
100 |
Water |
35 |
|
|
|
|
Retannage I |
3 |
Chrome ( 26 / 33 ) |
|
|
|
|
|
|
2 |
Rockytan RHN |
|
|
|
|
|
|
0.3 |
Sodium formate |
|
|
|
|
|
|
2 |
Rockol OFL |
|
90 |
|
|
|
|
1 |
Sodium formate |
|
30 |
4.4 |
O.N(Run 5 min–stop1hr) |
|
Drain |
|
|
|
|
|
|
|
|
150 |
Water |
35 |
|
|
|
|
Neutralization |
1.5 |
Sodium formate |
|
|
|
|
|
|
1 |
Sodium bicarbonate |
|
3×15 |
5.2 |
Check Ř with B.C.G |
|
Drain |
|
|
|
|
|
|
|
Washing |
300 |
Water |
35 |
5 |
|
|
|
|
80 |
Water |
35 |
|
|
|
|
|
1.5 |
Rockol OPS-322 |
|
10 |
|
|
|
Retannage II |
4 |
Rockytan RE-808S |
|
30 |
|
|
|
| |