Measurements & Tests

Non-destructive testing of ship hull steel welds 1. General 1.1 This document is intended to give guidance on the minimum requirements on the methods and quality levels that may be adopted for the non-destructive testing (NDT) of ship hull steel welds during new building and ship repair. 1.2 The quality levels given in this document refer to production quality and not to fitness for purpose of ...

   Tank Pressure Test Demonstration  Joint Panel MeetingPreparation – Close out all openings into tank (including piping) and install all test equipment.Pre-testing – Press up tank and check all welds to be presented. Fix if leaking. Testing – Demonstrate to customer. Recording – Sign off and present tank to ship management for ongoing outfitting activities. Tank pressur...

A ship's length is measured in different ways depending on scope of measurement.  Terms used for technical or registry purposes include registered length, tonnage length, floodable length or length by Class rules. The most common used length measurements are length overall, length between perpendiculars, and length on load waterline. LOA   -  Length overall : Distance measured parallel  to w...

TANK INSPECTIONS Inspections in cargo tanks are part of the ship's preventive maintenance program. The structure and all of the equipment each tank contains are vital to the work of the tanker. Information on condition of the tanks and cargo equipment is essential to preparation of requirements for shipyard or underway repairs. For tank inspection information to be useful to the crew and owners, ...

These guidelines were developed in 1998/99 for Exxon Chemical Europe Inc., Basic Chemicals Europe by Captain C. Allport of Standard Marine Services Limited and replace earlier guidance. They are based upon the report and advice from an LPG Measurement Survey conducted by Srini Sivaraman of ER&E in May/June 1997 and incorporate the earlier guidelines for Liquefied Gas Cargo Measurement and Calc...