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Improve fire safety using the 2019 edition of NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces to accurately measure and record flame travel distance and the optical density of smoke along cable and wires to confirm they meet certain requirements for being categorized as having low-smoke producing, fire-resistance characteristics. (Softbound, 35 pp., 2019)