Home Code News Standards Council Issues TIA UPC-001-09 and Approves Extracted ASHRAE 62.1-2007, Ventilation Rate...

Standards Council Issues TIA UPC-001-09 and Approves Extracted ASHRAE 62.1-2007, Ventilation Rate Table

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The IAPMO Standards Council on Jan. 23 issued two decisions: One approving Tentative Interim Amendment UPC-001-09 to the 2009 Uniform Plumbing Code (UPC) and another approving the extraction of ASHRAE 62.1-2007, Minimum Ventilation Rates Table in the 2009 Uniform Mechanical Code (UMC).

The decision on UPC-001-09 results in the removal of text from Section 211.0 regarding the definition of “insanitary” and the addition of an exception to Section 405.2 regarding prohibited urinals in the 2009 UPC.

Stricken from the list of conditions in Section 211.0 to which “insanitary” shall apply is “Any plumbing fixture or other waste discharging receptor or device that is not supplied with water sufficient to flush and maintain the fixture or receptor in a clean condition.”

“This TIA correlates language that was added elsewhere in the code clarifying that not all plumbing fixtures use water in order to function properly,” said Lynne Simnick, director of Code Development.

The exception for “Non-water urinals” was added to Section 405.2, Prohibited Urinals, because non-water urinals do not have a visible seal as described in this section, therefore an exception was added to correlate language.

The TIA was balloted through the Plumbing Technical Committee in accordance with the Regulations Governing Committee Projects. Though it did not receive three-fourths majority support on technical merit and emergency nature, the Standards Council felt UPC-001-09 was needed in order to correct an omission and conflict due to additional text added to the 2009 code.

The Standards Council similarly voted favorably to approve the extraction of revised text from the 2007 edition of ASHRAE 62.1: Table 6-1 titled Minimum Ventilation Rates in Breathing Zone. This updated table will replace the previous version published as Chapter 4, Table 4-1 in the 2006 edition of the UMC. The extracted text also includes two new footnotes regarding default occupancy for studio/one bedroom dwelling units and the prevention of air recirculation from one dwelling unit to another.

In accordance with the Extract Guidelines, the revised Table 4-1 will appear in the 2009 edition of the UMC. As the extract was processed pursuant to the Extract Guidelines, but outside of the regular revision process, Table 4-1 will include a reference bracket below the table title indicating that the material is extracted from ASHRAE 62.1-2007.

To examine TIA UPC-001-09 or Table 4-1 in their entirety, and/or any other TIAs affecting the Uniform Codes, please direct your Web browser here.

TIAs are proposals based on the determination of an emergency nature requiring prompt action to amend code that contains an error or omission that was overlooked during the regular code development process, contains a conflict within the document or with another IAPMO document, or to correct a hazard, promote an advancement in safeguarding the public or provide an opportunity to correct an adverse impact on a product or method of installation.

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