ASTM F1144-19

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it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1144 − 98 (Reapproved 2012) F1144 − 19 An American National Standard
Standard Specification for
Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and
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Watertight, Hinged
This standard is issued under the fixed designation F1144; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification provides design and construction criteria for a semi-flush, oiltight and watertight bolted hinged manhole
cover assembly.
1.2 The manhole cover assemblies depicted on this specification are for use in decks or bulkheads requiring oiltight and
watertight covers that are not required to be completely flush. Manhole cover assemblies shall be complete with covers, mounting
rings, gaskets, studs, washers, hinge assemblies, and nuts.
1.3 Handles, if required, shall be as specified in the ordering information.
1.4 Values stated in inch-pound units are to be regarded as standard.
1.5 This standard is not applicable to certain hazardous cargos. (See 46CFR 46 CFR 153.254 and 46CFR 46 CFR 154.340.)
1.6 This specification provides design and construction for manhole cover assemblies subjected to lateral pressures such as
resulting from vehicle loads or hydrostatic pressures. Where manhole cover assemblies are subjected to primary or cyclic loads,
other reinforcement or construction criteria may be necessary to integrate the manhole assembly with the required structural
reinforcement for openings in decks or bulkheads. Design of the manhole cover assembly for primary or cyclic loads is beyond
the scope of this specification.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
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2.1 ASTM Standards:
A36/A36M Specification for Carbon Structural Steel
A131/A131M Specification for Structural Steel for Ships
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A575 Specification for Steel Bars, Carbon, Merchant Quality, M-Grades
B36/B36M Specification for Brass Plate, Sheet, Strip, And Rolled Bar
D2000 Classification System for Rubber Products in Automotive Applications
F783 Specification for Staple, Handgrab, Handle, and Stirrup Rung
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2.2 ANSIASME Standards:
B1.1 Unified Inch Screw Threads
Y14.5M Dimensioning and Tolerancing
B18.2.1 Square and Hex Bolts and Screws, Inch SeriesSquare, Hex, Heavy Hex, and Askew Head Bolts and Hex, Heavy Hex,
Hex Flange, Lobed Head, and Lag Screws (Inch Series)
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This specification is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
Outfitting and Deck Machinery.
Current edition approved June 1, 2012March 1, 2019. Published October 2012April 2019. Originally approved in 1988. Last previous edition approved in 20072012 as
F1144 – 98 (2007).(2012). DOI: 10.1520/F1144-98R12.10.1520/F1144-19.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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F1144 − 19
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2.3 ABS Standard:
Rules for Building and Classing Steel Vessels
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2.4 Steel Structures Painting Council SSPC Standard:
SP-10 Surface Preparation Specification No. 10
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2.5 Code of Federal Regulations (CFR) Standard:
CFR 4646 CFR Title 46 of the Code of Federal Regulations
3. Terminology
3.1 Definitions:
3.1.1 manhole—manhole, n—accessway located in a tank structure.
3.1.2 semi-flush—semi-flush, n—refers to the placement of the hinged plate over the ringed opening (without coaming).
4. Classification
4.1 Type I—15- by 23-in. (381- by 584-mm) size of access o
...