| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-131 | K7766 | BRITISH STANDARDS INSTITUTION |
| HTE7300-S10-131 | K2617 | HIGH TEMPERATURE ENGINEERS LTD |
| BSM48-131 | K7766 | BRITISH STANDARDS INSTITUTION |
| HTE7300-S10-131 | U1918 | MISSION SYSTEMS WIMBORNE LIMITED |
| HTE7300S10-131 | U1918 | MISSION SYSTEMS WIMBORNE LIMITED |