Understanding Flame Spread Index (FSI) and Smoke Developed Index (SDI) Ratings

Sep. 27, 2017
by Charlotte Pipe & Foundry Company
Categories:
Mechanical Insulation

Considering installing a plastic system in a plenum? No matter what type of piping system is being installed, the subject of flame spread and smoke developed ratings continues to be a confusing topic.

Read more to dive into a breakdown of the ASTM E84 test of flame spread/smoke index ratings. 

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