Classification
Classification of waterjetting preparation technology acc. to used water pressure
Standard |
Standard WOMA |
PN-ISO 12944-4 |
pr. ISO 8501-4 |
NF T35-520 |
SSPC-SP 12/NACE5 |
Low pressure washing [MPa] |
< 20 |
--- |
--- |
--- |
< 35 |
Pressure washing [MPa] |
20-70 |
<70 |
<70 |
<70 |
35-70 |
High pressure preparation [MPa] |
20-70 |
70-170 |
70-140 |
70-100 |
70-170 |
Very high pressure preparation [MPa] |
--- |
--- |
>140 |
100-140 |
--- |
Ultra high pressure preparation [MPa] |
>170 |
>170 |
--- |
>140 |
>170 |
Examples of preparation class acc. to different standards