| 0221-16 | K7766 | BRITISH STANDARDS INSTITUTION |
| 2323-7029 | K0143 | SERVOMEX GROUP LTD |
| DEFSTAN02-337-0221-16-FC70 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BS4518 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4518-0221-16 | K7766 | BRITISH STANDARDS INSTITUTION |
| NES 337-0221-16-FC70 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES-337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES337-0221-16-FC70-(V72G) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |