Draft survey

A draft survey is a calculation of the weight of cargo loaded or unloaded to or from a ship from measurents of changes in its displacement. The technique is based on Archimedes' principle. The procedure is standardized by the United Nations Economic Commission for Europe for the measurement of coal cargoes.[1]

Procedure

The draft survey is performed by reading the ship's draft on the draft markings at six standard points on the hull: forward, midships and aft on both port and starboard sides.[2] Corrections for factors such as trim, water density and non-cargo weight changes are made before calculating the cargo weight change.[3]

References

  1. ^ "UN ECE Code of Uniform Standards and Procedures for the Performance of DRAUGHT SURVEYS of Coal Cargoes". United Nations Economic Commission for Europe. Retrieved 10 June 2014.
  2. ^ Faruqi, B. "Draft Survey". Archived from the original on 15 November 2015. Retrieved 10 June 2014.
  3. ^ Dribble, Jim; Mitchell, Peter (2009). Draft Surveys: A Guide to Good Practice (Second ed.). North of England P&I Association. ISBN 978-0-9558257-5-0. Archived from the original on 2014-03-03. Retrieved 2014-06-10.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.