ASTM A1111-22

Standard Specification for Cast Iron Closet Flanges for Use with Cast Iron Soil Pipe and Fittings in Gravity Flow Plumbing Drain, Waste, and Vent Sanitary Applications

SCOPE
1.1 This specification covers cast iron soil closet flanges for use in gravity flow plumbing drain, waste, and vent sanitary applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test methods, inspection, certification, product markings, dimensions, and dimensional tolerances for closet flanges. These closet flanges are not intended for pressure applications, as the selection of the proper size for sanitary drain, waste, vent, and storm drain systems allows free air space for gravity drainage  
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 either new, special, or transitory and will be assigned numbers on subsequent prints of this specification.  
1.3 This specification covers closet flanges of the following patterns (7.1.1) and, when so designated, shall apply to any other patterns that conform with the applicable requirements given in this specification.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 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: Published
• Publication Date: 31-Oct-2022
• ICS: 91.140.70 - Sanitary installations
• Technical Committee: A04 - Iron Castings
• Drafting Committee: A04.12 - Pipes and Tubes

Relations

• Refers: ASTM E8/E8M-24 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 01-Jan-2024
• Refers: ASTM A888-23 - Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications
• Effective Date: 01-Nov-2023
• Refers: ASTM C564-20a - Standard Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings
• Effective Date: 01-May-2020
• Refers: ASTM C564-20 - Standard Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings
• Effective Date: 15-Mar-2020
• Refers: ASTM E2349-19 - Standard Practice for Safety Requirements in Metal Casting Operations: Sand Preparation, Molding, and Core Making; Melting and Pouring; and Cleaning and Finishing
• Effective Date: 01-Mar-2019
• Refers: ASTM A888-18a - Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications
• Effective Date: 15-Nov-2018
• Refers: ASTM E2349-18 - Standard Practice for Safety Requirements in Metal Casting Operations: Sand Preparation, Molding, and Core Making; Melting and Pouring; and Cleaning and Finishing
• Effective Date: 01-Oct-2018
• Refers: ASTM D3960-05(2018) - Standard Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings
• Effective Date: 01-Jun-2018
• Refers: ASTM A888-18 - Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications
• Effective Date: 01-Mar-2018
• Refers: ASTM A644-17 - Standard Terminology Relating to Iron Castings
• Effective Date: 01-Nov-2017
• Refers: ASTM A74-17 - Standard Specification for Cast Iron Soil Pipe and Fittings
• Effective Date: 01-Oct-2017
• Refers: ASTM A888-17a - Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications
• Effective Date: 01-Oct-2017
• Refers: ASTM A888-17 - Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications
• Effective Date: 01-Jun-2017
• Refers: ASTM E8/E8M-16 - Standard Test Methods for Tension Testing of Metallic Materials
• Effective Date: 15-Jul-2016
• Refers: ASTM A74-16 - Standard Specification for Cast Iron Soil Pipe and Fittings
• Effective Date: 01-Feb-2016

Overview

ASTM A1111-22 sets the standard specification for cast iron closet flanges designed for use with cast iron soil pipe and fittings in gravity flow plumbing systems for drain, waste, and vent (DWV) sanitary applications. Published by ASTM International, this standard defines essential requirements for materials, mechanical and chemical properties, manufacturing, coatings, test methods, inspection, product markings, and dimensions. The standard does not apply to pressure applications, ensuring suitability only for gravity drainage systems where free air space is necessary.

Closet flanges under this specification ensure a reliable, standardized connection between water closets and the plumbing system, supporting proper sanitary drainage and venting performance in both residential and commercial buildings.

Key Topics

• Material Requirements: Covers cast iron suitable for DWV systems, including gray iron and ductile iron conforming to specific chemical and mechanical properties.
• Manufacturing Controls: Establishes procedures for material screening, including radioactive material prevention, and prohibits defect correction by patching, filling, or welding.
• Mechanical and Chemical Properties:
  • Minimum tensile strength and detailed chemical composition limits
  • Batch testing and seven-year record retention requirements
• Coating Standards:
  • Specifies uniform, adherent coatings free from hazardous contamination (e.g., lead, high VOHAPs)
  • Calls for regular certification and documentation of coating compliance
• Dimensional Requirements: Provides dimensional tolerances, pattern details, and compatibility with hubless and other fitting types
• Inspection and Certification: Mandates regular inspection intervals, third-party certification protocols, product identification by legible casting, and thorough documentation
• Product Marking and Packaging: Requires clear origin and manufacturer identification, with shipment packaging to meet federal and military standards

Applications

ASTM A1111-22 is critical in the following contexts:

• Plumbing Construction and Renovation: Ensures compatibility and reliability of closet flanges for wastewater removal in gravity flow plumbing systems of residential, commercial, and institutional buildings.
• Code Compliance: Meets local, state, and international regulatory requirements for DWV systems, supporting building code inspections and approvals.
• Supply Chain and Ordering: Utilizes the ASA uniform EDP numbering system, facilitating efficient, standardized ordering throughout distribution channels.
• Third-party Quality Assurance: Used by certifiers and inspectors to verify adherence to test, inspection, and marking requirements as outlined by the standard.
• Sanitary Applications: Ideal for new installations and repairs of toilets in sanitary drain, waste, vent, and storm drain systems, specifically those not subject to pressure flow.

Related Standards

When working with cast iron closet flanges under ASTM A1111-22, consider these associated standards for complete system compatibility:

• ASTM A74: Standard Specification for Cast Iron Soil Pipe and Fittings
• ASTM A48/A48M: Standard Specification for Gray Iron Castings
• ASTM A888: Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm DWV Piping Applications
• ASTM C564: Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings
• ASTM D3960: Practice for Determining VOC Content of Paints and Coatings
• ASTM E8/E8M: Test Methods for Tension Testing of Metallic Materials
• Federal and Military Standards: For marking and shipment (Fed. Std. No. 123, MIL-STD-129)

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Keywords: ASTM A1111-22, cast iron closet flange, soil pipe, fittings, DWV, gravity flow, sanitary plumbing, ASTM standard, plumbing code compliance, product marking, uniform industry code.

For more detailed technical requirements or for official purchasing guidance, always refer to the current official ASTM A1111-22 publication.

Standards Content (Sample)

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.
Designation:A1111 −22
Standard Specification for
Cast Iron Closet Flanges for Use with Cast Iron Soil Pipe
and Fittings in Gravity Flow Plumbing Drain, Waste, and
Vent Sanitary Applications
This standard is issued under the fixed designation A1111; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This specification covers cast iron soil closet flanges for
use in gravity flow plumbing drain, waste, and vent sanitary
2. Referenced Documents
applications. It establishes standards covering material,
2.1 ASTM Standards:
manufacture, mechanical and chemical properties, coating, test
A48/A48M Specification for Gray Iron Castings
methods, inspection, certification, product markings,
A74 Specification for Cast Iron Soil Pipe and Fittings
dimensions, and dimensional tolerances for closet flanges.
A644 Terminology Relating to Iron Castings
These closet flanges are not intended for pressure applications,
A888 Specification for Hubless Cast Iron Soil Pipe and
as the selection of the proper size for sanitary drain, waste,
Fittings for Sanitary and Storm Drain, Waste, and Vent
vent, and storm drain systems allows free air space for gravity
Piping Applications
drainage
C564 Specification for Rubber Gaskets for Cast Iron Soil
1.2 The EDP/ASA numbers indicated in this section repre-
Pipe and Fittings
sent a Uniform Industry Code adopted by theAmerican Supply
D3960 PracticeforDeterminingVolatileOrganicCompound
Association (ASA). A group designation prefix, 022, is as-
(VOC) Content of Paints and Related Coatings
signed to hubless products followed by the four-digit identifi-
E8/E8M Test Methods for Tension Testing of Metallic Ma-
cation assigned to individual items and a check digit. This
terials
system has been instituted to facilitate EDP control through
E1645 Practice for Preparation of Dried Paint Samples by
distribution channels, and is to be used universally in ordering
Hotplate or Microwave Digestion for Subsequent Lead
and specifying product items. Those items with no EDP
Analysis
numbers are either new, special, or transitory and will be
E2349 Practice for Safety Requirements in Metal Casting
assigned numbers on subsequent prints of this specification.
Operations: Sand Preparation, Molding, and Core Mak-
1.3 This specification covers closet flanges of the following
ing; Melting and Pouring; and Cleaning and Finishing
patterns (7.1.1) and, when so designated, shall apply to any
2.2 Federal Standard:
other patterns that conform with the applicable requirements
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
given in this specification.
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
1.4 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3. Terminology
conversions to SI units that are provided for information only
and are not considered standard.
3.1 Definitions of Terms Specific to This Standard:
3.1.1 closet flange, n—a flange used to connect a water
1.5 This international standard was developed in accor-
closet to the sanitary piping in drain, waste, and vent applica-
dance with internationally recognized principles on standard-
tions.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
This specification is under the jurisdiction of ASTM Committee A04 on Iron Standards volume information, refer to the standard’s Document Summary page on
Castings and is the direct responsibility of Subcommittee A04.12 on Pipes and the ASTM website.
Tubes. Available from General Services Administration – Vendor Support Center,
Current edition approved Nov. 1, 2022. Published November 2022. Originally https://vsc.gsa.gov/administration/files/FEDSTD123H.pdf.
approved in 2018. Last previous edition approved in 2018 as A1111 – 18. DOI: Available from General Services Administration – Vendor Support Center,
10.1520/A1111-22. https://vsc.gsa.gov/administration/files/MIL-STD-129R.pdf.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A1111 − 22
3.1.2 manufacturer, n—the entity that casts the closet 5.1.3 Analysis of castings or test bars after the time of
flanges covered by this standard. production shall not be used as evidence of compliance to this
specification.
4. Materials and Manufacture
6. Chemical Tests for Gray Iron
4.1 The closet flanges shall be iron castings suitable for
installation and service for sanitary drain, waste, and vent
6.1 The manufacturer shall perform tests to determine the
piping applications.The closet flanges shall meet all applicable
significant chemical constituents of the gray iron used in the
requirements and tests given in this specification.
manufacture of gray iron soil pipe and fittings and closet
flanges. Analysis shall be performed at the minimum of once
4.2 The castings shall be made of cast iron produced by an
established commercial method that provides control over per lot as defined in this specification. The manufacturer shall
maintain a record of chemical tests performed for a minimum
chemical and physical properties. Cast iron is a generic term
for a series of alloys as defined in Terminology A644, and of seven years. The test results shall conform to the following
requirements as to chemical composition:
includes gray iron as well as ductile iron. The castings shall be
sound, true to pattern, and of compact close grain that permits
Phosphorous (P) 0.38 % maximum
Sulfur (S) 0.15 % maximum
drilling and cutting by ordinary methods. The interior surface
Chromium (Cr) 0.50 % maximum
shall be reasonably smooth and free from defects that would
Titanium (Ti) 0.10 % maximum
make the castings unfit for the use for which they are intended.
Aluminum (Al) 0.50 % maximum
Lead (Pb) 0.015 % maximum
4.3 To minimize the possibility of introducing radioactive
Carbon Equivalent 4.10 % minimum by mass
material to a melting operation, ferrous scrap, pig iron, and any
Note: Carbon equivalent for gray iron = %C+%Si/3+%P/3
recycledferrousmaterialshallbescreenedbythemanufacturer
for radioactivity with detection devices operated in accordance
6.1.1 Chemical tests shall be performed at the time of
with the detection manufacturer’s instructions. Written
production of the castings covered by this specification.
operating, calibration, and maintenance procedures for the
6.1.2 Analysis of castings after the time of production shall
detection equipment shall be provided to the purchaser for
not be used as evidence of compliance to this specification.
reviewwhenrequested.Recordsshallbemaintainedbyloadof
these tests for a period of seven years.
7. Dimensions and Permissible Variations
4.3.1 Only radiation devices designed specifically for the
7.1 Closet Flanges:
purpose of screening ferrous material shipments shall be used
7.1.1 Dimensions of Closet Flanges—All closet flanges
for the purpose of conforming to this requirement. Handheld
shall conform to the dimensions specified in Fig. 1.
radiation detectors (Geiger counters) are not appropriate and
shall not be used for the purpose of conforming to this
7.2 Hubless Closet Flange Riser—For information on hub-
requirement.
less closet flange risers, refer to Fig. 57 of Specification A888.
4.3.2 Material that is found contaminated with radioactivity
shall not be used to produce products covered by this specifi-
8. Coating
cation.
8.1 The closet flanges shall be uniformly coated with a
4.3.3 Analysis of castings after the time of production shall
materialsuitableforthepurposethatisadherentandnotbrittle.
not be used to determine compliance to this specification.
The coating shall be applied in accordance with the coating
4.4 Foundries manufacturing products to this specification
manufacturer’s requirements. External touch marks from
shall comply to all local, provincial, state, and national safety
points of contact during the coating process are permitted. The
laws and regulations and to the requirements of Practice
coating shall not contain asbestos above current MSDS report-
E2349.
able levels. Safety Data Sheets shall be furnished by the
4.5 Closet flanges shall not be patched, filled, or welded to
coating manufacturer when requested. The coating shall be
correct cosmetic or material defects that occur during the
evenly and smoothly applied to all surfaces, except in threaded
course of manufacturing.
openings, unless the coating is specifically designed for
threaded openings.
5. Mechanical Properties
8.2 Closet flange coatings shall not contain lead which
5.1 Mechanical Tests for Gray Iron—The manufacturer
exceeds levels above 0.06 % (600 ppm).
shall perform tests to determine mechanical properties of the
8.2.1 The manufacturer shall annually prepare and submit
gray iron used in the manufacture of gray iron soil pipe and
samples to a qualified laboratory for test in accordance with
fittings. Tension test specimens shall be employed, in accor-
Practice E1645. The manufacturer shall prepare and submit
dance with details in 10.1.1.The manufacturer shall maintain a
samples when changing sources of supply or the coating
record of mechanical tests for a minimum of seven years.
manufacturer changes formulations for the coating.
5.1.1 Tensile Strength Test—Thetensilestrengthshallbenot
less than 21 000 psi (145 MPa). 8.3 Closetflangecoatingsshallnotcontainlevelsofvolatile
5.1.2 Tension test reports shall include breaking load of test organic hazardous air pollutants (VOHAPs) which exceed
bars, machined diameter of test bar, and calculated tensile levels of 2.6 lb of VOHAPs per gallon (0.31 kg per liter) of
strength. solids in accordance with Practice D3960.
A1111 − 22
ASA Code
Dimensions, inches
Size,
Group 022
Item
inches
Item No. = AB D I.D. (min)
1 1 1
2971 8 Regular 4 6 ⁄4 7 ⁄4 14 ⁄2
1 1 1
...

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: A1111 − 18 A1111 − 22
Standard Specification for
Cast Iron Closet Flanges for Use Withwith Cast Iron Soil
Pipe and Fittings in Gravity Flow Plumbing Drain, Waste,
and Vent Sanitary Applications
This standard is issued under the fixed designation A1111; 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 cast iron soil closet flanges for use in gravity flow plumbing drain, waste, and vent sanitary
applications. It establishes standards covering material, manufacture, mechanical and chemical properties, coating, test methods,
inspection, certification, product markings, dimensions, and dimensional tolerances for closet flanges. These closet flanges are not
intended for pressure applications, as the selection of the proper size for sanitary drain, waste, vent, and storm drain systems allows
free air space for gravity drainage
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 either new,
special, or transitory and will be assigned numbers on subsequent prints of this specification.
1.3 This specification covers closet flanges of the following patterns (7.1.1) and, when so designated, shall apply to any other
patterns that conform with the applicable requirements given in this specification.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in bracketsparentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5 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:
A48/A48M Specification for Gray Iron Castings
A74 Specification for Cast Iron Soil Pipe and Fittings
A644 Terminology Relating to Iron Castings
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 Nov. 15, 2018Nov. 1, 2022. Published January 2019November 2022. Originally approved in 2018. Last previous edition approved in 2018 as
A1111 – 18. DOI: 10.1520/A1111-18.10.1520/A1111-22.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A1111 − 22
A888 Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping
Applications
C564 Specification for Rubber Gaskets for Cast Iron Soil Pipe and Fittings
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
E2349 Practice for Safety Requirements in Metal Casting Operations: Sand Preparation, Molding, and Core Making; Melting
and Pouring; and Cleaning and Finishing
2.2 Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
2.3 Military Standard:
MIL-STD-129 Marking for Shipment and Storage
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 closet flange, n—a flange used to connect a water closet to the sanitary piping in drain wastedrain, waste, and vent
applications.
3.1.2 manufacturer, n—the entity that casts the closet flanges covered by this standard.
4. Materials and Manufacture
4.1 The closet flanges shall be iron castings suitable for installation and service for sanitary drain, waste, and vent piping
applications. The closet flanges 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 physical 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 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 devices designed specifically for the purpose of screening ferrous material shipments shall be used for the
purpose of conforming to this requirement. Handheld radiation detectors (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 Foundries manufacturing products to this specification shall comply to all local, provincial, state, and national safety laws and
regulations and to the requirements of Practice E2349.
4.5 Closet flanges shall not be patched, filled, or welded to correct cosmetic or material defects that occur during the course of
manufacturing.
Available from General Services Administration – Vendor Support Center, https://vsc.gsa.gov/administration/files/FEDSTD123H.pdf.
Available from General Services Administration – Vendor Support Center, https://vsc.gsa.gov/administration/files/MIL-STD-129R.pdf.
A1111 − 22
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 and fittings. Tension test specimens shall be employed, in accordance with details
in 10.1.1. 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).
5.1.2 Tension test reports shall include breaking load of test bars, machined diameter of test bar, and calculated tensile strength.
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 Tests 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 and fittings and closet flanges. Analysis shall be performed at the 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 Closet Flanges:
7.1.1 Dimensions of Closet Flanges—All closet flanges shall conform to the dimensions specified in Fig. 1.
7.2 Hubless Closet Flange Riser—For information on hubless closet flange risers, refer to Fig. 57 of Specification A888.
8. Coating
8.1 The closet flanges shall be uniformly coated with a material suitable for the purpose that is adherent and not brittle. The coating
shall be applied in accordance with the coating manufacturer’s requirements. External touch marks from points of contact during
the coating process are permitted. The coating shall not contain asbestos above current MSDS reportable levels. Safety data
sheetsData Sheets shall be furnished by the coating manufacturer when requested. The coating shall be evenly and smoothly
applied to all surfaces, except in threaded openings, unless the coating is specifically designed for threaded openings.
8.2 Closet flangesflange coatings shall not contain lead which exceeds levels above 0.06 % (600 ppm).
8.2.1 The manufacturer shall annually prepare and submit samples to a qualified laboratory for test in accordance with Practice
E1645. The manufacturer shall prepare and submit samples when changing sources of supply or the coating manufacturer changes
formulations for the coating.
8.3 Closet flangesflange coatings shall not contain levels of volatile organic hazardous air pollutants (VOHAPs) which exceed
levels of 2.6 lb of VOHAPs per gallon [0.31(0.31 kg per liter]liter) of solids in accordance with Practice D3960.
A1111 − 22
ASA Code
Dimensions, inches
Size,
Group 022
Item
inches
Item No. = A B D I.D. (min)
1 1 1
2971 8 Regular 4 6 ⁄4 7 ⁄4 1 4 ⁄2
1 1 1 1
2972 0 Regular 4 6 ⁄4 7 ⁄4 1 ⁄2 4 ⁄2
1 1 1
2973 6 Regular 4 6 ⁄4 7 ⁄4 2 4 ⁄2
1 1 1 1
2974 4 Regular 4 6 ⁄4 7 ⁄4 2 ⁄2 4 ⁄2
1 1 1
2975 2 Regular 4 6 ⁄4 7 ⁄4 3 4 ⁄2
1 1 1
2976 4 Regular 4 6 ⁄4 7 ⁄4 4 4 ⁄2
1 1 1
2977 0 Regular 4 6 ⁄4 7 ⁄4 5 4 ⁄2
1 1 1
2978 6 Regular 4 6 ⁄4 7 ⁄4 6 4 ⁄2
1 1 1
2979 8 Reducing 4 × 3 6 ⁄4 7 ⁄4 3 3 ⁄2
1 3 1
2980 4 Mechanical 4 × 2 6 ⁄4 7 ⁄8 2 4 ⁄2
1 3 1
2983 0 Mechanical 4 × 3 6 ⁄4 7 ⁄8 2 4 ⁄2
1 3 5 1
2984 0 Push-on 4 × 3 6 ⁄4 7 ⁄8 3 ⁄16 3 ⁄2
1 3 1
Mechanica
...