| BS4439 | K7766 | BRITISH STANDARDS INSTITUTION |
| P.L. M.C.M./372/07/001 | K4944 | BAE SYSTEMS SURFACE SHIPS LIMITED |
| PL 004501929 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| PL 004501929 REFERENCE 1303 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| P.L. M.C.M./372/07/001 REFERENC- | K4944 | BAE SYSTEMS SURFACE SHIPS LIMITED |