ASTM F2935-12(2018)e1

Standard Specification for Chocks, Panama, Mooring Cast Steel

ABSTRACT
This specification covers the principal dimensions and materials of chocks installed in ships to comply with the regulations of the Panama Canal. It indicates the workmanship, finish, and appearance of deck mounted chocks, along with the configuration of bulwark mounted chocks. The dimension requirements and classification of chocks are included as well.
SCOPE
1.1 This specification covers the principal dimensions and materials of chocks installed in ships to comply with the regulations of the Panama Canal.  
1.2 Chocks can be used with either wire rope or fiber and synthetic ropes.  
1.3 Chocks are for mounting directly on a deck, seat (foundation) or for mounting in a bulwark.  
1.4 To meet Panama Canal Company regulations the radius of contact surfaces of lines must be 180 mm.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2018
• ICS: 47.020.50 - Deck equipment and installations
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.01 - Structures

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
´1
Designation: F2935 − 12 (Reapproved 2018) An American National Standard
Standard Specification for
Chocks, Panama, Mooring Cast Steel
This standard is issued under the fixed designation F2935; 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.
ε NOTE—Keywords section was editorially added in March 2018.
1. Scope 3.1.1 bulwark—a structural enclosure along the edge of the
ship to serve as a rail.
1.1 This specification covers the principal dimensions and
3.1.2 closed chock—a metal flared ring-like fitting mounted
materials of chocks installed in ships to comply with the
on a ship through which mooring lines pass to tow or moor a
regulations of the Panama Canal.
ship.
1.2 Chocks can be used with either wire rope or fiber and
3.1.3 mooring ring or pipe—a chock mounted in the bul-
synthetic ropes.
wark and conforming to Type II or IV.
1.3 Chocks are for mounting directly on a deck, seat
3.1.4 rope contact area—that part of the fitting in contact
(foundation) or for mounting in a bulwark.
with the mooring line in normal mooring operations.
1.4 To meet Panama Canal Company regulations the radius
of contact surfaces of lines must be 180 mm.
4. Classification
1.5 The values stated in SI units are to be regarded as
4.1 The size of the chock shall be identified by the nominal
standard. No other units of measurement are included in this
size “L” and “H” of the opening as shown in Table 1 and Fig.
standard.
1, and Table 2 and Fig. 2. Sizes larger than 360 mm by 260 mm
may be considered as double chocks.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4.2 Chocks are furnished in types as follows:
ization established in the Decision on Principles for the
4.2.1 Type I—Deck mounted, as shown in Fig. 1, and
Development of International Standards, Guides and Recom-
conforms to all dimensions in Table 1.
mendations issued by the World Trade Organization Technical
4.2.2 Type II—Bulwark mounted, as shown in Fig. 2, and
Barriers to Trade (TBT) Committee.
conforms to all dimensions in Table 2.
4.2.3 Type III—Deck mounted conforming only to dimen-
2. Referenced Documents
sions “L”, “H”, and 180 mm radius at entrance, as shown in
2.1 ASTM Standards:
Fig. 1 and Table 1 and the requirements of Sections 6 – 10.
A27/A27M Specification for Steel Castings, Carbon, for 4.2.4 Type IV—Bulwark mounted conforming only to di-
General Application
mensions “L”, “H”, and 180 mm radius at entrance, as shown
in Fig. 2 and Table 2 and the requirements of Sections 6 to 10.
2.2 ANSI Standards:
B 46.1 Surface Texture
4.3 Chocks shall be furnished in either of the following
grades:
3. Terminology
4.3.1 Grade 1—Surface finish shall be in the as cast
3.1 Definitions of Terms Specific to This Standard:
condition.
4.3.2 Grade 2—Surface finish in way of rope contact shall
be in accordance with 7.2.
This specification is under the jurisdiction of ASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.01 on
5. Ordering Information
Structures.
Current edition approved March 1, 2018. Published April 2018. Originally
5.1 Orders for chocks under this specification shall include
approved in 2012. Last previous edition approved in 2012 as F2935 – 12.
this standard date, and the following:
DOI:10.1520/F2935-12R18E01.
5.1.1 Quantity (number) of chocks required,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.1.2 Size (opening, L × H),
Standards volume information, refer to the standard’s Document Summary page on
5.1.3 Type and grade,
the ASTM website.
3 5.1.4 Primer and coating, if any (see 7.3), and
Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036, http://www.ansi.org. 5.1.5 Marking.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F2935 − 12 (2018)
TABLE 1 Dimension Requirements (see Fig. 1)
(Unit: mm)
Nominal size L l l l l H H H R R R
1 2 3 4 1 2 1 2
310 310 708 688 105 310 260 639 543 130 329 233
360 360 760 740 130 360 260 640 545 130 330 235
Welding leg length SWL
Nominal size R R R T D Calculated weight (kg)
3 4 5
z kN tonnes
310 142 140 195 32 38 8 471 48 257
360 140 138 192 34 40 8.5 687 70 286
NOTE
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
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.
´1
Designation: F2935 − 12 F2935 − 12 (Reapproved 2018) An American National Standard
Standard Specification for
Chocks, Panama, Mooring Cast Steel
This standard is issued under the fixed designation F2935; 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.
ε NOTE—Keywords section was editorially added in March 2018.
1. Scope
1.1 This specification covers the principal dimensions and materials of chocks installed in ships to comply with the regulations
of the Panama Canal.
1.2 Chocks can be used with either wire rope or fiber and synthetic ropes.
1.3 Chocks are for mounting directly on a deck, seat (foundation) or for mounting in a bulwark.
1.4 To meet Panama Canal Company regulations the radius of contact surfaces of lines must be 180 mm.
1.5 The values stated in SI units are to be regarded as the standard. standard. No other units of measurement are included in
this standard.
1.6 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
2.1 ASTM Standards:
A27/A27M Specification for Steel Castings, Carbon, for General Application
2.2 ANSI Standard:Standards:
B 46.1 Surface Texture
3. Descriptions of Terms Specific to This Standard
3.1 bulwark—a structural enclosure along the edge of the ship to serve as a rail.
3.2 closed chock—a metal flared ring-like fitting mounted on a ship through which mooring lines pass to tow or moor a ship.
3.3 mooring ring or pipe—a chock mounted in the bulwark and conforming to Type II or IV.
3.4 rope contact area—that part of the fitting in contact with the mooring line in normal mooring operations.
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 bulwark—a structural enclosure along the edge of the ship to serve as a rail.
3.1.2 closed chock—a metal flared ring-like fitting mounted on a ship through which mooring lines pass to tow or moor a ship.
3.1.3 mooring ring or pipe—a chock mounted in the bulwark and conforming to Type II or IV.
3.1.4 rope contact area—that part of the fitting in contact with the mooring line in normal mooring operations.
This specification is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.01 on
Structures.
Current edition approved Jan. 1, 2012March 1, 2018. Published February 2012April 2018. DOI:10.1520/F2935-12.Originally approved in 2012. Last previous edition
approved in 2012 as F2935 – 12. DOI:10.1520/F2935-12R18E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
F2935 − 12 (2018)
4. Classification
4.1 The size of the chock shall be identified by the nominal size “L” and “H” of the opening as shown in Table 1 and Fig. 1,
and Table 2 and Fig. 2. Sizes larger than 360 mm by 260 mm may be considered as double chocks.
4.2 Chocks are furnished in types as follows:
4.2.1 Type I—Deck mounted, as shown in Fig. 1, and conforms to all dimensions in Table 1.
4.2.2 Type II—Bulwark mounted, as shown in Fig. 2, and conforms to all dimensions in Table 2.
4.2.3 Type III—Deck mounted conforming only to dimensions “L”, “H”, and 180 mm radius at entrance, as shown in Fig. 1 and
Table 1 and the requirements of Sections 6 – 10.
4.2.4 Type IV—Bulwark mounted conforming only to dimensions “L”, “H”, and 180 mm radius at entrance, as shown in Fig.
2 and Table 2 and the requirements of Sections 6 to 10.
4.3 Chocks shall be furnished in either of the following grades:
4.3.1 Grade 1—Surface finish shall be in the as cast condition.
4.3.2 Grade 2—Surface finish in way of rope contact shall be in accordance with 7.2.
5. Ordering Information
5.1 Orders for chocks under this specification shall include this standard date, and the following:
5.1.1 Quantity (number) of chocks required,
5.1.2 Size (opening, L × H),
5.1.3 Type and grade,
5.1.4 Primer and coating, if an
...