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ASTM F1321-92

Historical Revision

Standard Guide for Conducting a Stability Test (Lightweight Survey and Inclining Experiment) to Determine the Light Ship Displacement and Centers of Gravity of a Vessel

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1.1 This guide covers the determination of a vessel's light ship characteristics. The stability test can be considered to be two separate tasks; the lightweight survey and the inclining experiment. The stability test is required for most vessels upon their completion and after major conversions. It is normally conducted inshore in calm weather conditions and usually requires the vessel be taken out of service to prepare for and conduct the stability test. The three light ship characteristics determined from the stability test for conventional (symmetrical) ships are displacement (displ), longitudinal center of gravity (LCG), and the vertical center of gravity (KG). The transverse center of gravity (TCG) may also be determined for mobile offshore drilling units (MODUs) and other vessels which are asymmetrical about the centerline or whose internal arrangement or outfitting is such that an inherent list may develop from off-center weight. Because of their nature, other special considerations not specifically addressed in this guide may be necessary for some MODUs.

1.2 This standard does not purport to address the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number F1321
Publication Date Jan. 1, 1992
Language en - English
Page Count 28
Revision Level 92
Supercedes
Committee F25.01
Publish Date Document Id Type View
May 1, 2021 F1321-21 Revision
May 1, 2014 F1321-14 Revision
Oct. 1, 2013 F1321-13E01 Revision
Oct. 1, 2013 F1321-13 Revision
Jan. 1, 1992 F1321-92 Revision
Jan. 15, 2021 F1321-14R21 Reaffirmation
Nov. 1, 2008 F1321-92R08 Reaffirmation
July 1, 2004 F1321-92R04 Reaffirmation