Shaxda hadda jirta waxay u taagan tahay kanaalada heerka Yurub ee U (UPN, UNP),UPN profile birta(UPN beam), qeexitaannada, guryaha, cabbirada.Lagu soo saaray si waafaqsan heerarka:
DIN 1026-1: 2000, NF A 45-202: 1986
EN 10279: 2000 (Dulqaadyada)
TS EN 10163-3: 2004, heerka C, heerka hoose 1 (xaalad dusha sare)
STN 42 5550
ČTN 42 5550
TDP: STN 42 0135