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| 87/00301 | K5682 | TRUFLO MARINE LTD |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1806-327 | K7766 | BRITISH STANDARDS INSTITUTION |
| 50-327 | U8616 | JAMES WALKER & CO LTD |
| DEFSTAN02-337-327-FC90 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
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| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BSM48-327 | K7766 | BRITISH STANDARDS INSTITUTION |
| JW50-327 | U2164 | JAMES WALKER & CO LTD |
| JW50-327 | U8616 | JAMES WALKER & CO LTD |