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ASTM F991M-12

Standard Specification for Docking/Drain Plug and Boss Assemblies [Metric] (Withdrawn 2004)
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This specification provides design, construction, and purchasing criteria for docking/drain plug and boss assemblies.

Assemblies are intended for installation in shell, rudder, and tank bottom plate. Assemblies shall be installed at the lowest point of a tank or rudder for draining during dry docking.

Docking plugs and bosses shall be classified as follows:

  • Type I - docking plug and bosses for plating from 8 to 15 mm
  • Type II - docking plug and bosses for plating greater than 15 to 38 mm

The procedure for installing docking/drain plug and boss assemblies are presented.

1.1 This specification provides design, construction, and purchasing criteria for docking/drain plug and boss assemblies.

1.2 Assemblies are intended for installation in shell, rudder, and tank bottom plate from 8 through 38 mm.

1.3 Assemblies shall be installed at the lowest point of a tank or rudder for draining during dry docking.

1.4 The values stated in SI units are to be regarded as the standard.

SDO ASTM: ASTM International
Document Number F991
Publication Date Oct. 1, 2012
Language en - English
Page Count 3
Revision Level 12
Supercedes
Committee F25.01
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