Umgangatho wase-UK: BS EN545-2002
Umgangatho waseMelika: AWWAC 151
Umgangatho waseMzantsi Korea: KSD 4311
Umgangatho waseOstreliya: AS 2280
3: EN545/ISO2531/GB/T13295 Ductile Cast Iron Pipe unit ubunzima ,T-uhlobo K8 K9 K10 C Class , Ubude obusebenzayo = 5.7/ 6M.