| 18-73 | K6834 | SEA SURE LTD |
| 18-73 | U2756 | SEA SURE LTD |
| 250 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| 2-12-SS | U8157 | GRIFFON HOVERWORK LTD |
| 20012 SS | U8157 | GRIFFON HOVERWORK LTD |
| DEFSTAN02-337-250-MN70 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-250-MN70 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BS1806-250 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-250 | K7766 | BRITISH STANDARDS INSTITUTION |
| NES337-250-MN70-(N73B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |