| 1041195 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 17-27B | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| A1R47020 | K0667 | APPH LIMITED |
| BS1806-009 | K7766 | BRITISH STANDARDS INSTITUTION |
| 27M12685 | U1278 | MINISTRY OF DEFENCE NAVY |
| 27M12685 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BSM48-009 | K7766 | BRITISH STANDARDS INSTITUTION |