It should be capable of floating in fresh water for at least 24 hours with 32 lb of iron suspended from it, and should be of a highly visible colour.
Kufuneka ikwazi ukudada emanzini kangangeeyure eziyi24 ineelbe eziyi32 zesinyithi esikhutshiweyo yaye kufuneka ibonakale ngombala oqaqambileyo.