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ASTM F1142-98

(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

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 46CFR 153.254 and 46CFR 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 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

Status
Historical
Publication Date
09-Aug-1998
ICS
47.020.10 - Hulls and their structure elements
Technical Committee
F25 - Ships and Marine Technology
Drafting Committee
F25.03 - Outfitting and Deck Machinery
Current Stage
Ref Project

Relations

Replaced By
ASTM F1142-98(2003) - Standard Specification for Manhole Cover Assembly Bolted, Semi-Flush, Oiltight and Watertight
Effective Date
01-Dec-2003

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ASTM F1142-98 - Standard Specification for Manhole Cover Assembly Bolted, Semi-Flush, Oiltight and WatertightASTM F1142-98 - Standard Specification for Manhole Cover Assembly Bolted, Semi-Flush, Oiltight and Watertight
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ASTM F1142-98 - Standard Specification for Manhole Cover Assembly Bolted, Semi-Flush, Oiltight and Watertight
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 1142 – 98 An American National Standard
Standard Specification for
Manhole Cover Assembly, Bolted, Semi-Flush, Oiltight and
Watertight
This standard is issued under the fixed designation F 1142; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope motive Applications
F 783 Specification for Staple, Handgrab, Handle, and Stir-
1.1 This specification provides design and construction
rup Rung
criteria for a semi-flush, oiltight, and watertight bolted manhole
2.2 ANSI Standards:
cover assembly.
B1.1 Unified Inch Screw Threads
1.2 The manhole cover assembly depicted in this specifica-
Y14.5M Dimensioning and Tolerancing
tion is for use in decks or bulkheads requiring oiltight and
B18.2.1 Square and Hex Bolts and Screws, Inch Series
watertight covers that are not required to be completely flush.
2.3 American Bureau of Shipping Standard:
Manhole cover assemblies shall be complete with covers,
Rules for Building and Classing Steel Vessels
mounting rings, gaskets, welded studs, washers, and nuts.
2.4 Steel Structures Painting Council Standard:
1.3 Handles, if required, shall be as specified in the ordering
SP-10 Surface Preparation Specification No. 10
information.
2.5 Code of Federal Regulations Standard:
1.4 The values stated in inch pound units are to be regarded
CFR 46 Code of Federal Regulations
as the standard. The values given in parentheses are for
information only.
3. Terminology
1.5 This specification is not applicable to certain hazardous
3.1 Definitions:
cargos (see Section 46 CFR 153.254 and 46 CFR 154.340).
3.1.1 manhole—an accessway located in a tank structure.
1.6 This specification provides design and construction for
3.1.2 semi-flush—placement of the cover over the ringed
manhole cover assemblies subjected to lateral pressures such as
opening (without coaming).
resulting from vehicle loads or hydrostatic pressures. Where
manhole cover assemblies are subjected to primary or cyclic
4. Classification
loads, other reinforcement or construction criteria may be
4.1 Type I—15- by 23-in. (381- by 584-mm) size of access
necessary to integrate the manhole assembly with the required
opening. Type II—18- by 24-in. (457- by 610-mm) size of
structural reinforcement for openings in decks or bulkheads.
access opening.
Design of the manhole cover assembly for primary or cyclic
4.2 Grade 1— ⁄4-in. (6.35-mm) thick cover plate. Grade
loads is beyond the scope of this specification.
3 1
2— ⁄8-in. (9.5-mm) thick cover plate. Grade 3— ⁄2-in. (12.7-
2. Referenced Documents mm) thick cover plate.
4.3 Class A Manhole Cover Assemblies—Class A manhole
2.1 ASTM Standards:
2 cover assemblies shall be abrasive blasted to near white metal
A 36/A 36M Specification for Structural Steel
2 in accordance with SSPC SP-10, and a commercial marine
A 131/A 131M Specification for Structural Steel for Ships
quality, nonhazardous, corrosion-inhibiting, and oil-resistant
A 153/A 153M Specification for Zinc Coating (Hot-Dip)
3 primer coating be applied for protection for a period of one
on Iron and Steel Hardware
year during shipping and in shipyard handling.
B 36/B 36M Specification for Brass Plate, Sheet, Strip, and
4 4.4 Class B Manhole Cover Assemblies—Class B manhole
Rolled Bar
cover assemblies shall be galvanized in accordance with
D 2000 Classification System for Rubber Products in Auto-
Annual Book of ASTM Standards, Vol 09.02.
Annual Book of ASTM Standards, Vol 01.07.
This specification is under the jurisdiction of ASTM Committee F-25 on Ships
Available from American National Standards Institute, 11 W. 42nd St., 13th
and Marine Technology and is the direct responsibility of Subcommittee F25.03 on
Floor, New York, NY 10036.
Outfitting.
Available from American Bureau of Shipping, Corporate Publications Dept.,
Current edition approved Aug. 10, 1998. Published December 1998. Originally
Two World Trade Center, 106th Floor, New York, NY 10048.
published as F 1142 – 88. Last previous edition F 1142 – 90.
Available from Steel Structures Painting Council, 4400 Fifth Ave., Pittsburgh,
Annual Book of ASTM Standards, Vol 01.04.
PA 15213.
Annual Book of ASTM Standards, Vol 01.06.
Available from Superintendent of Documents, Government Printing Office,
Annual Book of ASTM Standards, Vol 02.01.
Washington, DC 20402.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 1142
Specification A 153/A 153M. each manhole cover assembly shall be inspected.
9.2 For orders for three to ten manhole cover assemblies,
5. Ordering Information
two manhole cover assemblies shall be selected at random. If
5.1 The purchasers ordering information shall include the
any one of them fails to meet requirements, then all manholes
following:
in the order shall be inspected.
5.1.1 ASTM designation and year of issue,
9.3 For orders for more than ten manhole cover assemblies,
5.1.2 Type (see 4.1),
they shall be separated into groups of ten (or fraction thereof)
5.1.3 Grade (see 4.2),
for sampling purposes.
5.1.4 Class (see 4.3),
5.1.5 Quantity,
10. Inspection and Testing
5.1.6 Remarks—Handles (are/are not) required,
5.1.7 Approval—Classification Society approval (is/is not)
10.1 Responsibility—Unless otherwise specified in the or-
required, and
der, the manufacturer is responsible for the performance of all
5.1.8 Gasket, if other than specified (see 6.6).
inspection and testing specified herein. The manufacturer may
use his own facilities or any commercial facility acceptable to
6. Materials and Manufacture
the purchaser. The purchaser reserves the right to perform any
6.1 Plate for the cover and the ring shall be of Specifications
of the inspections and tests set forth where such are deemed
A 36/A 36M or A 131/A 131M steel.
necessary to assure that supplies conform to prescribed require-
6.2 Round bar for the handle shall be in accordance with
ments. Nonconforming manhole cover assemblies shall not be
Specification F 783, Type A.
offered for delivery.
6.3 Welded studs shall be ⁄4-in. (19.05-mm) 10 UNC-2A by
3 10.2 Inspection—The dimensions of the manhole cover
1 ⁄4 in. (44.4 mm) long and manufactured of ordinary steel to
assembly and its components shall be checked to ensure that
commercial standards. Threads shall be the coarse thread series
they are within specified tolerances.
as specified in the latest issue of ANSI B1.1.
6.4 Washers shall be ANSI B18.2.1 Type A, ⁄4-in. (19.05- 10.3 Test Methods—Each manhole cover assembly shall be
mm) washer, 2-in. (50.8-mm) by 0.148-in. (3.8-mm) thick
designed to the pressure listed in Table 1 and tested to a
standard flat manufactured of yellow brass, Specification pressure equal to 1.5 times the design pressure. The test
B 36/B 36M.
pressure shall be held for a minimum of 5 min. There shall be
6.5 Heavy hex nuts shall be ⁄4-in. (19.05-mm) 10 UNC-2B
no visible sign of leakage, permanent deformation, or other
and manufactured of yellow brass, Specification B 36/B 36.
indications of structural failure of the manhole cover assembly.
Threads in nuts shall conform to the dimensions for coarse
10.3.1 Before delivery, the manhole cover assemblies shall
threads with tolerances prescribed in ANSI B1.1. The nuts shall
be certified as to their watertight and oiltight integrity. Groups
conform to dimensions prescribed in ANSI B18.2.1.
of manhole cover assemblies whose representative samples
6.6 Unless otherwise specified in ordering information,
pass the tightness test shall be certified for watertight and
gasket shall be rubber, ⁄16 in. (4.8 mm) thick, 50 6 5
oiltight integrity to their design pressure.
durometer prescribed per Classification D 2000 5BC507 A14
E034. Manhole cover assemblies for government application,
11. Product Marking
see Ann
...

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