P | Resistance of the outsole to perforation | ✓ | ✓ | 0 | ✓ |
C | Conductive properties | 0 | ✓ | ✓ | ✓ |
A | Anti-static properties | 0 | ✓ | ✓ | ✓ |
I | Insulation against electricity | 0 | ✓ | ✓ | ✓ |
HI | Insulation against heat | 0 | 0 | 0 | 0 |
CI | Insulation against cold | 0 | 0 | 0 | 0 |
E | Heel energy absorption | ✓ | ✓ | ✓ | ✓ |
WR | Water resistance | 0 | 0 | ✓ | ✓ |
M | Toe protection | ✓ | ✓ | ✓ | ✓ |
AN | Ankle protection | 0 | 0 | 0 | 0 |
WRU | Water penetration and absorption of the upper | 0 | ✓ | ✓ | ✓ |
CR | Resistance of the upper to cutting | ✓ | ✓ | ✓ | ✓ |
HRO | Resistance to heat for sole contact | 0 | 0 | 0 | 0 |
FO | Resistance of the sole hydrocarbons | 0 | ✓ | ✓ | ✓ |
SRA (Ceramic + detergent) | Slip resistance | ✓ | ✓ | ✓ | ✓ |
SRB (steel + glycerine) | Slip resistance | ✓ | ✓ | ✓ | ✓ |
SRC (SRA+SRB) | Slip resistance | 0 | 0 | 0 | 0 |