ASTM A1109-22

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.
Designation: A1109 − 18 A1109 − 22
Standard Specification for
Special Fittings for Single-Stack Hubless Cast Iron Soil Pipe
Fittings for Sanitary, Waste, and Vent Piping Applications
This standard is issued under the fixed designation A1109; 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 covers special hubless cast iron soil pipe fittings for use in a one-pipe combination vent and waste stack
unvented for gravity flow applications. It establishes standards covering material, manufacture, mechanical and chemical
properties, dimensions, coating, test methods, inspection, certification, and product marking for hubless cast iron soil pipe fittings.
These fittings are intended for nonpressure applications, where the selection of the proper size for sanitary, drain, and waste
systems allows free air space for gravity drainage.
NOTE 1—The fittings covered by this standard are special fittings intended to be used for engineered designed systems and will require special approval
by the authority having jurisdiction for use. It is not the intent of this standard to endorse or recommend the use of these fittings for these special
applications.
1.2 The EDP/ASA numbers indicated in this section represent a uniform industry code adopted by the American Supply
Association (ASA). A group designation prefix, 022, is assigned to hubless products, followed by the four-digit identification
assigned to individual items and a check digit. This system has been instituted to facilitate EDP control through distribution
channels, and is to be used universally in ordering and specifying product items. Those items with no EDP numbers are new,
special, or transitory, and will be assigned numbers on subsequent prints of this specification.
1.3 This specification covers fittings of the following patterns and applies to any other patterns that conform with the applicable
requirements given in this specification.
NOTE 2—The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables
and figures) shall not be considered as requirements of the standard.
NOTE 3—Some sellers of these fittings use the terms “aerator” and “de-aerator” fittings to describe the two types of fittings covered by this standard.
1.4 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:
This specification is under the jurisdiction of ASTM Committee A04 on Iron Castings and is the direct responsibility of Subcommittee A04.12 on Pipes and Tubes.
Current edition approved Feb. 15, 2018Nov. 1, 2022. Published March 2018November 2022. Originally approved in 2018. Last previous edition approved in 2018 as
A1109 – 18. DOI: 10.1520/A1109-18.10.1520/A1109-22.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A1109 − 22
A48/A48M Specification for Gray Iron Castings
A644 Terminology Relating to Iron Castings
D3960 Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings
E8/E8M Test Methods for Tension Testing of Metallic Materials
E1645 Practice for Preparation of Dried Paint Samples by Hotplate or Microwave Digestion for Subsequent Lead Analysis
2.2 U.S. Federal Standard:
Federal Standard No. 123 Marking for Shipment (Civil Agencies)
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
2.4 Other Documents:
Uniform Freight Classification Rules
National Motor Freight Classification Rules
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 manufacturer—the entity that casts the fittings covered by this standard.
4. Materials and Manufacture
4.1 The fittings shall be iron castings suitable for installation and service for sanitary, storm drain, and waste vent piping
applications. The fittings shall meet all applicable requirements and tests given in this specification.
4.2 The castings shall be made of cast iron, produced by an established commercial method that provides control over chemical
and mechanical properties. “Cast iron” is a generic term for a series of alloys as defined in Terminology A644 and includes gray
iron as well as ductile iron. The castings shall be sound, true to pattern, and of compact close grain that permits drilling and cutting
by ordinary methods. The interior surface shall be reasonably smooth and free from defects that would make the castings unfit for
the use for which they are intended.
4.3 To minimize the possibility of introducing radioactive material to a melting operation, ferrous scrap, pig iron, and any recycled
ferrous material shall be screened by the manufacturer for radioactivity with suitable detection devices operated in accordance with
the detection manufacturer’s instructions. Written operating, calibration, and maintenance procedures for the detection equipment
shall be provided to the purchaser for review when requested. Records shall be maintained by load of these tests for a period of
seven years.
4.3.1 Only radiation detection devices designed specifically for the purpose of screening ferrous material shipments shall be used
for the purpose of conforming to this requirement. Handheld detection devices (Geiger counters) are not appropriate and shall not
be used for the purpose of conforming to this requirement.
4.3.2 Material that is found contaminated with radioactivity shall not be used to produce products covered by this specification.
4.3.3 Analysis of castings after the time of production shall not be used to determine compliance to this specification.
4.4 Fittings shall not be patched, filled, or welded by the manufacturer to repair cosmetic or material defects that occur during the
course of manufacturing.
5. Mechanical Properties
5.1 Mechanical Tests for Gray Iron—The manufacturer shall perform tests to determine mechanical properties of the gray iron
used in the manufacture of gray iron soil pipe fittings. Tension tests on the specimens shall be employed. The manufacturer shall
maintain a record of mechanical tests for a minimum of seven years.
5.1.1 Tensile Strength Test—The tensile strength shall be not less than 21 000 psi (145 MPa).
Available from DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA 19111-5094, http://quicksearch.dla.mil.
Available from Uniform Classification Commission, Room 1106, 222 S. Riverside Plaza, Chicago, IL 60606.
Available from National Motor Freight Traffic Association, Inc. (NMFTA), 1001 N. Fairfax St., Suite 600, Alexandria, VA 22314-1798, http://www.nmfta.org.
A1109 − 22
5.1.2 Tension test reports shall include breaking load of test bars, machined diameter of test bars, and calculated tensile strength.
Section 11 provides details of the test bar dimensions.
5.1.3 Analysis of castings or test bars after the time of production shall not be used as evidence of compliance to this specification.
6. Chemical Test for Gray Iron
6.1 The manufacturer shall perform tests to determine the significant chemical constituents of the gray iron used in the
manufacture of gray iron soil pipe fittings. Analysis shall be performed at a minimum of once per lot as defined in this specification.
The manufacturer shall maintain a record of chemical tests performed for a minimum of seven years. The test results shall conform
to the following requirements as to chemical composition:
Phosphorous (P) 0.38 % maximum
Sulfur (S) 0.15 % maximum
Chromium (Cr) 0.50 % maximum
Titanium (Ti) 0.10 % maximum
Aluminum (Al) 0.50 % maximum
Lead (Pb) 0.015 % maximum
Carbon Equivalent 4.10 % minimum by mass
Note: Carbon equivalent for gray iron = %C+%Si/3+%P/3.
6.1.1 Chemical tests shall be performed at the time of production of the castings covered by this specification.
6.1.2 Analysis of castings after the time of production shall not be used as evidence of compliance to this specification.
7. Dimensions and Permissible Variations
7.1 Dimensions of Fittings—All fittings shall conform to the dimensions and tolerances specified in Table 1 and Fig. 1 as
applicable. Fittings not listed shall conform to Table 1 for wall thickness and dimension R for the minimum radius of any drain
inlets that any such fittings provide. Stack fittings and special fittings that perform the function of a sanitary tee, designed for the
conveyance of soil or waste effluents, or both, shall have a radius not less than the following:
7.1.1 Nominal Size of the Run or Branch—Sizes 1 ⁄2 to 2 in. shall have a minimum radius of 125 % of the smaller run or branch.
Sizes 3 to 4 in. shall have a minimum radius of 100 % of the smaller run or branch. Sizes 5 to 6 in. shall have a minimum radius
of 80 % of the smaller run or branch. Sizes 8 to 10 in. shall have a minimum radius of 70 % of the smaller run or branch.
TABLE 1 Dimensions and Tolerances in Inches (Millimetres) of Spigots and Barrels for Hubless Fittings
Barrel Spigot
Inside Outside Outside Gasket
A
Size Bead Width Barrel Thickness, T
A
Diameter Diameter Diameter Positioning Lug
B J M N, ±0.13 (3.3) Nominal Minimum W
(38.1 ± 2.29) (48.26 ± 1.52) (49.78 ± 1.52) (6.35) (3.3) (28.7)
2 1.96 ± 0.09 2.35 ± 0.09 2.41 ± 0.09 0.25 0.16 0.13 1.13
(49.8 ± 2.29) (59.69 ± 2.29) (61.21 ± 2.29) (6.35) (3.3) (28.7)
3 2.96 ± 0.09 3.35 ± 0.09 3.41 ± 0.09 0.25 0.16 0.13 1.13
(75.2 ± 2.29) (85.09 ± 2.29) (86.61 ± 2.29) (6.35) (3.3) (28.7)
4 3.94 ± 0.09 4.38 + 0.09 4.44 ± 0.09 0.31 0.19 0.15 1.13
−0.05
(100.08 ± 2.29) (111.25 + 2.29) (112.78 ± 2.29) (7.87) (3.81) (28.7)
(−1.27)
5 4.94 ± 0.09 5.30 + 0.09 5.36 ± 0.09 0.31 0.19 0.15 1.50
−0.05
(125.48 ± 2.29) (134.62 + 2.29) (136.14 ± 2.29) (7.87) (3.81) (38.1)
(−1.27)
6 5.94 ± 0.09 6.30 + 0.09 6.36 ± 0.09 0.31 0.19 0.15 1.50
−0.05
(150.88 ± 2.29) (160.02 + 2.29) (161.54 ± 2.29) (7.87) (3.81) (38.1)
(−1.27)
8 7.94 ± 0.13 8.38 + 0.09 8.44 ± 0.09 0.31 0.23 0.17 2.00
−0.09
(201.68 ± 3.3) (212.85 + 3.3) (214.38 ± 2.29) (7.87) (4.32) (50.8)
(−2.29)
A
See Fig. 1 for details of the spigot and gasket positioning lug.
A1109 − 22
NOTE 1—These lugs and spigot beads are
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