| 17-27B | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| BS1806-011 | K7766 | BRITISH STANDARDS INSTITUTION |
| UE30369 | K1360 | POWERFIELD SPECIALIST ENGINES |
| BSM48-011 | K7766 | BRITISH STANDARDS INSTITUTION |
| UE30369 | KC3S3 | POWERFIELD LTD DBA ROLLS ROYCE DISTRIBUTED GENERATION SYSTEMS |