Standard tar-Renju Unit: BS EN545-2002
Standard Amerikan: AWWAC 151
Standard tal-Korea t'Isfel: KSD 4311
Standard Awstraljan: AS 2280
3: EN545/ISO2531/GB/T13295 Piż tal-Pajp tal-Ħadid fondut duttili, Klassi T tat-tip K8 K9 K10 C, Tul Attiv = 5.7/ 6M.