| 30C34099 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS6323 PART 4-CFS3 CONDITION GBK | K7766 | BRITISH STANDARDS INSTITUTION |
| BS6323 PART 4-CFS3-GBK-2INOD | K7766 | BRITISH STANDARDS INSTITUTION |
| BS6323-CFS3GBK | K7766 | BRITISH STANDARDS INSTITUTION |
| BSEN10305-1-E235+C | K7766 | BRITISH STANDARDS INSTITUTION |
| CFS3GBK | K7766 | BRITISH STANDARDS INSTITUTION |
| EN10305-1-E235+C | I9006 | COMITE EUROPEEN DE NORMALISATION |