ASTM F681-82(1998)

Standard Practice for Use of Branch Connections

SCOPE
1.1 This practice lists commonly used types of branch connections for carbon steel, chromium-molybdenum steel pipe and copper-nickel alloy tubing. Branch to run size applications are given in Tables 1, 2, and 3. Other types of branch connections may be used provided they comply with the requirements of Title 46 CFR Subparts 56.07-10(f) and 56.70-15(g) of the USCG Regulations.

General Information

• Status: Historical
• Publication Date: 09-Apr-1998
• ICS: 47.020.60 - Electrical equipment of ships and of marine structures
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.11 - Machinery and Piping Systems

Relations

• Replaced By: ASTM F681-82(2004) - Standard Practice for Use of Branch Connections
• Effective Date: 01-Nov-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation: F 681 – 82 (Reapproved 1998)
Standard Practice for Use of
Branch Connections
This standard is issued under the fixed designation F 681; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope B31.1 Power Piping
2.3 Other Document:
1.1 This practice lists commonly used types of branch
Title 46 Code of Federal Regulations (CFR) Shipping, Parts
connections for carbon steel, chromium-molybdenum steel
41 to 69
pipe and copper-nickel alloy tubing. Branch to run size
applications are given in Table 1, Table 2, and Table 3. Other
3. General Requirements
types of branch connections (Fig. 1) may be used provided they
3.1 Weld joint designs shall be in accordance with Specifi-
comply with the requirements of Title 46 CFR Subparts
cation F 722 and the limitations therein.
56.07-10(f) and 56.70-15(g) of the USCG Regulations.
3.2 Fabricated branch connections shall meet the reinforce-
2. Referenced Documents ment requirements of Section 104.3 of ANSI B31.1 as modified
by Title 46, CFR Subparts 56.07-10(f) and 56.70-15(g) of the
2.1 ASTM Standards:
USCG regulations.
F 722 Specification for Welded Joints for Shipboard Piping
3.3 Threaded fittings shall be subject to the limitations of
Systems
Title 46 CFR, Subpart 56.30-20 of the USCG Regulations.
2.2 ANSI Standard:
4. Keywords
4.1 branch connnections; carbon steel connections;
chromium-molybdenum steel pipe; copper-nickel alloy tubing
This practice is under the jurisdiction of ASTM Committee F25 on Ships and
Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems. Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved July 30, 1982. Published October 1982. Originally 4th Floor, New York, NY 10036.
published as F 681 – 80. Last previous edition F 681 – 80. Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Annual Book of ASTM Standards, Vol 01.07. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
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