The following Sections of the International Plumbing Code are revised or added: Chapter 1, Administration, is deleted. See Article
I of this Chapter.
401.5 Identification. All gas piping shall be identified
by a yellow background marked "Gas" in black letters. Identification
shall in the form of a tag, stencil, or other permanent marking. Identification
shall be clear and legible from the floor of the room or space where
gas piping is located. Identification spacing of black steel pipe
shall be at intervals of not more than fifteen (15) feet in concealed
locations, twenty-five (25) feet in exposed locations, and not less
than once in any room or space. Identification marking for all other
piping shall be at intervals not exceeding five (5) feet and not less
than once in any room or space.
403.4.3 Copper and copper alloy. Copper and brass
tubing shall not be installed for the distribution of fuel gas.
403.4.4 Aluminum. Aluminum or aluminum alloy tubing
shall not be installed for the distribution of fuel gas.
403.5.1 Steel tubing. Steel tubing shall not be
installed for the distribution of compressed natural gas (CNG) or
shall it distribute any other fuel gas within a building or structure.
403.5.3 Copper and copper alloy tubing. Copper
and brass tubing shall not be installed for the distribution of compressed
natural gas (CNG) or shall it distribute any other fuel gas within
a building or structure.
403.5.4 Aluminum tubing. Aluminum tubing shall
not be installed for the distribution of compressed natural gas (CNG)
or shall it distribute any other fuel gas within a building or structure.
406.4.1 Test pressure. The test on all gas piping
designed for two (2) PSIG and less, shall not less than one and one-half
(1 1/2) times the proposed maximum working pressure, but not
less than ten (10) PSIG (68.9 kPa) irrespective of design pressure,
with a twenty (20) minute duration. The test on all gas piping designed
for greater than 2 PSIG (68.9 kPa) shall be a minimum of twenty (20)
PSIG with a one hundred twenty (120) minute duration. The measurement
range of the test gauge shall be not less than sixty (60) PSIG and
shall be readily visible for reading on the inside of the building.
406.4.2 Test duration, is deleted.
Appendices: The following appendix Chapters are
hereby adopted:
Appendix A: Sizing and Capacities of Gas
Piping
Appendix B: Sizing of Venting Systems Serving Appliances
Equipped with Draft Hoods, Category 1
Appliances and Appliances Listed for Use with Type B Vents
Appendix C: Exit Terminals of Mechanical Draft and Direct-vent
Venting Systems