| 0847-308 | K1673 | WEIR VALVES & CONTROLS LTD |
| B1121-069 | K1673 | WEIR VALVES & CONTROLS LTD |
| EN22339-B-40-ST | I9006 | COMITE EUROPEEN DE NORMALISATION |
| C0847-308 | K1673 | WEIR VALVES & CONTROLS LTD |
| BS5681 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSEN22339 | K7766 | BRITISH STANDARDS INSTITUTION |