NFPA 72 2023 edition
NFPA 72 requires differential pressure testing of duct detector sampling tubes. While not often enforced nor fully understood, your team should be equipped to know how to do it when called upon.
Where to find it: NFPA 72 2023 edition, table 14.4.3.2.17.7(e). Test duct smoke detectors that use sampling tubes to ensure that they will properly sample the airstream in the duct using a method acceptable to the manufacturer or in accordance with their published instructions.
In commercial service industries like fire and life safety or mechanical, growth isn’t a mystery—it’s a system: serve better, keep more customers, grow recurring revenue, and scale without adding unnecessary overhead. The contractors winning today aren’t just working harder. They’re using transparency as a competitive weapon—turning self-service and timely communication into higher retention, steady revenue, […]
Every year, ServiceTrade hosts the Digital Wrap Conference, our signature event designed specifically to empower commercial service contractors. This year, DWC25, happening November 4-6, 2025, at the beautiful Wild Dunes Resort in Isle of Palms, South Carolina, promises to be our most impactful yet. Why should you attend? Because today’s commercial service industry is changing […]