Abstract
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, and 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.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
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.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B164 Specification for Nickel-Copper Alloy Rod, Bar, and Wire
Other Documents
ANSIB2.1 Standard Pipe Threads Except Dryseal
Keywords
boss assemblies; docking/drain plug; drydocking; rudder; shell; tank bottom plate ;
ICS Code
ICS Number Code 23.020.10 (Stationary containers and tanks)
DOI: 10.1520/F0991M-12
ASTM International is a member of CrossRef.
Citing ASTM Standards
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