ASTM F1142-98(2012)
(Specification)Standard Specification for Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and Watertight
Standard Specification for Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and Watertight
ABSTRACT
This specification provides the design and construction criteria for a semi-flush bolted oiltight and watertight manhole cover assemblies that are subjected to lateral pressures such as resulting from vehicle loads or hydrostatic pressures, and used in decks or bulkheads requiring manhole covers that are not required to be completely flush. Manhole cover assemblies shall be complete with covers, mounting rings, gaskets, welded studs, washers, and nuts. This specification does not address certain hazardous cargos, as well as the design of the manhole cover assembly for primary or cyclic loads.
SCOPE
1.1 This specification provides design and construction criteria for a semi-flush, oiltight, and watertight bolted manhole cover assembly.
1.2 The manhole cover assembly depicted in this specification is 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, welded studs, washers, and nuts.
1.3 Handles, if required, shall be as specified in the ordering information.
1.4 The values stated in inch pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 This specification is not applicable to certain hazardous cargos (see Section 46 CFR 153.254 and 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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F1142 −98 (Reapproved 2012) An American National Standard
Standard Specification for
Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and
Watertight
This standard is issued under the fixed designation F1142; 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 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification provides design and construction
A36/A36M Specification for Carbon Structural Steel
criteriaforasemi-flush,oiltight,andwatertightboltedmanhole
A131/A131M Specification for Structural Steel for Ships
cover assembly.
A153/A153M Specification for Zinc Coating (Hot-Dip) on
1.2 The manhole cover assembly depicted in this specifica-
Iron and Steel Hardware
tion is for use in decks or bulkheads requiring oiltight and
B36/B36M Specification for Brass Plate, Sheet, Strip, And
watertight covers that are not required to be completely flush. Rolled Bar
Manhole cover assemblies shall be complete with covers, D2000 Classification System for Rubber Products in Auto-
motive Applications
mounting rings, gaskets, welded studs, washers, and nuts.
F783 Specification for Staple, Handgrab, Handle, and Stir-
1.3 Handles, if required, shall be as specified in the ordering
rup Rung
information.
2.2 ANSI Standards:
1.4 The values stated in inch pound units are to be regarded
B1.1 Unified Inch Screw Threads
as the standard. The values given in parentheses are for Y14.5M Dimensioning and Tolerancing
information only. B18.2.1 Square and Hex Bolts and Screws, Inch Series
2.3 American Bureau of Shipping Standard:
1.5 This specification is not applicable to certain hazardous
Rules for Building and Classing Steel Vessels
cargos (see Section 46 CFR 153.254 and 46 CFR 154.340).
2.4 Steel Structures Painting Council Standard:
1.6 This specification provides design and construction for
SP-10 Surface Preparation Specification No. 10
manholecoverassembliessubjectedtolateralpressuressuchas
2.5 Code of Federal Regulations Standard:
resulting from vehicle loads or hydrostatic pressures. Where
CFR 46 Code of Federal Regulations
manhole cover assemblies are subjected to primary or cyclic
loads, other reinforcement or construction criteria may be
3. Terminology
necessary to integrate the manhole assembly with the required
structural reinforcement for openings in decks or bulkheads.
3.1 Definitions:
Design of the manhole cover assembly for primary or cyclic 3.1.1 manhole—an accessway located in a tank structure.
loads is beyond the scope of this specification.
3.1.2 semi-flush—placement of the cover over the ringed
opening (without coaming).
1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Development of International Standards, Guides and Recom-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mendations issued by the World Trade Organization Technical
Standards volume information, refer to the standard’s Document Summary page on
Barriers to Trade (TBT) Committee.
the ASTM website.
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org.
Available from American Bureau of Shipping (ABS), ABS Plaza, 16855
This specification is under the jurisdiction of ASTM Committee F25 on Ships Northchase Dr., Houston, TX 77060, http://www.eagle.org.
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor,
Outfitting and Deck Machinery. Pittsburgh, PA 15222-4656, http://www.sspc.org.
Current edition approved June 1, 2012. Published October 2012. Originally Available from U.S. Government Printing Office, Superintendent of
approved in 1998. Last previous edition approved in 2007 as F1142 – 98 (2007). Documents, 732 N. Capitol St., NW, Washington, DC 20401-0001, http://
DOI: 10.1520/F1142-98R12. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1142−98 (2012)
4. Classification 6.7 Welding shall conform to the latest issue of the Ameri-
can Bureau of Shipping rules or other classification society
4.1 Type I—15- by 23-in. (381- by 584-mm) size of access
rules as may be applicable.
opening. Type II—18- by 24-in. (457- by 610-mm) size of
6.8 Details of bolted manhole cover assembly are shown in
access opening.
Fig. 1.
4.2 Grade 1— ⁄4-in. (6.35-mm) thick cover plate. Grade
3 1
2— ⁄8-in. (9.5-mm) thick cover plate. Grade 3— ⁄2-in. (12.7-
7. Dimensions
mm) thick cover plate.
7.1 Dimensions of manhole cover assembly shall be as
4.3 Class A Manhole Cover Assemblies—Class A manhole
indicated in Table 1.
cover assemblies shall be abrasive blasted to near white metal
7.2 For plating up to and including ⁄4-in. (6.4-mm)
in accordance with SSPC SP-10, and a commercial marine
thickness, use cover plate of ⁄4-in. (6.4-mm) thickness. Plating
quality, nonhazardous, corrosion-inhibiting, and oil-resistant
1 3
over ⁄4 in. (6.4 mm) up to, and including ⁄8-in. (9.5-mm)
primer coating be applied for protection for a period of one
thickness, use cover plate of ⁄8-in. (9.5-mm) thickness. Plating
year during shipping and in shipyard handling.
3 1
over ⁄8-in. (9.5-mm) thickness, use cover plate of ⁄2-in.
4.4 Class B Manhole Cover Assemblies—Class B manhole
(12.7-mm) thickness.
cover assemblies shall be galvanized in accordance with
Specification A153/A153M.
8. Workmanship, Finish, and Appearance
8.1 Items produced under this specification shall be free of
5. Ordering Information
splinters, sharp edges, burrs, projections, and weld spatters.
5.1 The purchasers ordering information shall include the
following:
9. Sampling
5.1.1 ASTM designation and year of issue,
9.1 For orders for one or two manhole cover assemblies,
5.1.2 Type (see 4.1),
each manhole cover assembly shall be inspected.
5.1.3 Grade (see 4.2),
9.2 For orders for three to ten manhole cover assemblies,
5.1.4 Class (see 4.3),
two manhole cover assemblies shall be selected at random. If
5.1.5 Quantity,
any one of them fails to meet requirements, then all manholes
5.1.6 Remarks—Handles (are/are not) required,
in the order shall be inspected.
5.1.7 Approval—Classification Society approval (is/is not)
9.3 For orders for more than ten manhole cover assemblies,
required, and
they shall be separated into groups of ten (or fraction thereof)
5.1.8 Gasket, if other than specified (see 6.6).
for sampling purposes.
6. Materials and Manufacture
10. Inspection and Testing
6.1 PlateforthecoverandtheringshallbeofSpecifications
10.1 Responsibility—Unless otherwise specified in the
A36/A36M or A131/A131M steel.
order, the manufacturer is responsible for the performance of
6.2 Round bar for the handle shall be in accordance with all inspection and testing specified herein. The manufacturer
may use his own facilities or any commercial facility accept-
Specification F783, Type A.
able to the purchaser. The purchaser reserves the right to
6.3 Welded studs shall be ⁄4-in. (19.05-mm) 10 UNC-2Aby
perform any of the inspections and tests set forth where such
1 ⁄4 in. (44.4 mm) long and manufactured of ordinary steel to
are deemed necessary to assure that supplies conform to
commercialstandards.Threadsshallbethecoarsethreadseries
prescribed requirements. Nonconforming manhole cover as-
as specified in the latest issue of ANSI B1.1.
semblies shall not be offered for delivery.
6.4 Washers shall be ANSI B18.2.1 Type A, ⁄4-in. (19.05-
10.2 Inspection—The dimensions of the manhole cover
mm) washer, 2-in. (50.8-mm) by 0.148-in. (3.8-mm) thick
assembly and its components shall be checked to ensure that
standard flat manufactured of yellow brass, Specification
they are within specified tolerances.
B36/B36
...
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