| ASCC17-27C-227 | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| BS1806-227 | K7766 | BRITISH STANDARDS INSTITUTION |
| UX11528 | K5086 | ROLLS-ROYCE POWER ENGINEERING PLC (ROLLS-ROYCE & ASSOCIATES) |
| UX11528/RRA | K5086 | ROLLS-ROYCE POWER ENGINEERING PLC (ROLLS-ROYCE & ASSOCIATES) |
| BSM48-227 | K7766 | BRITISH STANDARDS INSTITUTION |