Container Weight FAQ
Q: MSC.1/Circ.1475 states that Method No.1 should be used for ISO tank container bulk cargo, but volumetric measurement devices are surely accurate to obtain VGM.
A: Volumetric measurement would require an auditable process that records additionally the specific gravity and temperature of the cargo at the time of filling in order to calculate a valid VGM. However, the IMO guidance makes no permission for this and an ISO tank container (or flexitank) should be weighed using Method No. 1.