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(c) 1803.2.3 Additional Regulations for HPM Supply Piping
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In addition to the requirements in paragraph (C)(2)(1803.2) of this rule, HPM supply piping and tubing for HPM gases and liquids shall comply with this paragraph.
The requirements set forth in paragraph (C)(2)(b)(ii)(2703.2.2.2) of rule 1301:7-7-27 of the Administrative Code shall apply to supply piping and tubing for HPM gases and liquids.
Supply piping and tubing for HPM gases and liquids having a health-hazard ranking of 3 or 4 shall be welded throughout, except for connections located within a ventilation enclosure if the material is a gas, or an approved method of drainage or containment provided for connections if the material is a liquid.