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ANSI logo ANSI Incorporated by Reference (IBR) Portal
ANSI Incorporated by Reference (IBR) Portal
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IAPMO IBR Standards

IAPMO logo Below is a listing of IAPMO standards incorporated by reference in the Code of Federal Regulations.
Click on “View Only” to access a read-only copy of a referenced IAPMO standard.
Please note that prior to accessing the standards, you must install the FileOpen Plug-In.
For more information, read the FAQ page.

IAPMO PS 14:1989
Material and Property Standard for Flexible Metallic Water Connectors
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IAPMO PS 2:1989
Material and Property Standard for Cast Brass and Tubing P-Traps
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IAPMO PS 31:1991
Material and Property Standard for Backflow Prevention Devices
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IAPMO PS 5:1984
Material and Property Standard for Special Cast Iron Fittings
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IAPMO PS 9:1984
Material and Property Standard for Diversion Tees and Twin Waste Elbow
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IAPMO/ANSI UMC 1-2003
Uniform Mechanical Code
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