| 0176-24 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS4518 | K7766 | BRITISH STANDARDS INSTITUTION |
| SM10801-039 | K0216 | THALES OPTRONICS LIMITED |
| RM0176-24 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| ND5540 | K0824 | PEARSON ENGINEERING LIMITED |
| BS4518-0176-24 | K7766 | BRITISH STANDARDS INSTITUTION |