![]() In this article, the methodology, calculation, and common errors of a draft survey will be discussed. Determining the volume of the cargo in holds and applying the cargo stowage factor – The accuracy is questionable and this method provides no more than an approximate estimation. ![]() Draft survey – Generally well prepared and meticulous draft survey can achieve an absolute accuracy of ☐.5%.Various types of shore weighbridges – The accuracy is unlikely to be better than within 0.2% and in case conveyor/weigh-belt systems are used no better than ☒%.Considering the specifics of the bulk cargo commodities, historically the industry has recognized the following methods for weight determination: Īn essential part of each merchant sea-trade is the correct determination of the cargo loaded/discharged from/to the transporting unit. Undoubtfully, the working horse of merchant shipping industry is the Bulk carrier’ s fleet, which with its 842 438 thousand dead-weight is forming 42,6 % of the world’s tonnage has transported 5230 million tons various bulk commodities during 2018 as per UNCTAD Review of Maritime Transport. ![]() Marine transport is the backbone of the global trade and reasonably can be considered to be the artery of the global manufacturing supply chain, as more than four fifths of the world merchandise trade by volume is carried by sea.
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