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// CODE SNIPPET

602.2.1.2 Fire Sprinkler Piping

Mechanical Code 2018 of Maryland > 6 Duct Systems > 602 Plenums > 602.2 Construction > 602.2.1 Materials Within Plenums > 602.2.1.2 Fire Sprinkler Piping
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Plastic fire sprinkler piping exposed within a plenum shall be used only in wet pipe systems and shall be listed and labeled as having a peak optical density not greater than 0.50, an average optical density not greater than 0.15, and a flame spread distance not greater than 5 feet (1524 mm) when tested in accordance with UL 1887.

Related Code Sections


602.2.1.2 Duct Systems, Fire Sprinkler Piping
Plastic fire sprinkler piping exposed within a plenum shall be used only in wet pipe systems and shall be listed and labeled as having a peak ...
Mechanical Code 2018 of Maryland > 6 Duct Systems > 602 Plenums > 602.2 Construction > 602.2.1 Materials Within Plenums > 602.2.1.2 Fire Sprinkler Piping
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