| 30B1780 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| BS 2L62 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS L105 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS L62 | K7766 | BRITISH STANDARDS INSTITUTION |
| L105 | K7766 | BRITISH STANDARDS INSTITUTION |
| L105-T3/T4-1/4IN.X22SWGX9FTLGMIN | K7766 | BRITISH STANDARDS INSTITUTION |
| L62 | K7766 | BRITISH STANDARDS INSTITUTION |