| 8474 ITEM 11 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| 8474/11 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| B05585 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BO5585 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BS1806-008 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-008 | K7766 | BRITISH STANDARDS INSTITUTION |
| NB 35368 ITEM 28 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NC37521 ITEM 11 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| NC37521/11 | K0207 | HALE HAMILTON (VALVES) LIMITED |