| BS4518-0131-16 | K7766 | BRITISH STANDARDS INSTITUTION | 
| DEFSTAN02-337-0131-16FC70 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 | 
| WE122C1A | K1806 | MINISTRY OF DEFENCE,  DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) | 
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY | 
| NES 337-0131-16FC70 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY | 
| NES337-0131-16-FC70-(V72G) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |