| 212 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-212 | K7766 | BRITISH STANDARDS INSTITUTION |
| DP10240/10 | K1806 | MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) |
| DP10420 | K1806 | MINISTRY OF DEFENCE, DE&S UNDERWATER AND ELECTRONIC WARFARE PT (UEW IPT) |
| BSM48-212 | K7766 | BRITISH STANDARDS INSTITUTION |