| 4Q/3634 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS1806-014 | K7766 | BRITISH STANDARDS INSTITUTION |
| GM-C-90734-SITEM29 | K0054 | TAYLOR C F SKYHI LTD |
| GM-C-90734-SITEM29 | K4787 | MINISTRY OF DEFENCE PROCUREMENT EXECUTIVE |
| ORH-014H | K6539 | PALL EUROPE LIMITED AEROSPACE DIVISION |
| BSM48-014 | K7766 | BRITISH STANDARDS INSTITUTION |