| ГОСТ 3916.1-89 | ГОСТ 3916.1-96 | ГОСТ 10.55-71 | International |
| A | E(elite) | --- | E |
| AB/AB | I/I | B/B | B/B |
| S | |||
| AB/B | I/II | B/BB | |
| B/BB | |||
| B/B | II/II | BB/ВВ | BB/ВВ |
| B/BB | II/III | BB/CP | BB/CP |
| B/C | II/IV | BB/C | ВВ/C |
| BB/BB | III/III | СР/CP | CP/CP |
| WG | |||
| BB/C | III/IV | CP/C | |
| CP/C | |||
| C/C | IV/IV | C/C | C/C |