| 1640/FS/3/4 IN.TEE EQUAL SWEPT/- | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BS1640 PART 1 | K7766 | BRITISH STANDARDS INSTITUTION |
| QCA/1640/FS/3/4TEEEQUALSWEPT/WP- | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| TABLE6 SCHEDULE40 3/4 | K7766 | BRITISH STANDARDS INSTITUTION |
| BS1640 PT 1 | K7766 | BRITISH STANDARDS INSTITUTION |