After 46 years of teaching the principles of fire protection engineer-ing at the University of Maryland, Jim Milke retires as an industry icon. Read on as Tom Gardner recalls studying under him and reflecting on Milke’s contri-bution to fire protection and life safety.

Domestic hot water accounts for more than 25% of all scald burns in children. Ron George discusses the codes and standards covering hot water temperatures and how temperature-actuated mixing valves help prevent scalding issues.

As plumbing flow rates have declined since the passage of the Safe Drinking Water Act in 1991, the potential for Legionella growth in building plumbing systems has risen. Engineers must consider this — as well as scald risk and chemical eradication of the bacteria — when designing plumbing systems.

Robb A. Risani likes to lead by example, so if he says he’s going to do something, he does it, which is why people can depend and rely on him to get the job done.

IAPMO published its “Manual for Recommended Practice for Medical Gas Resiliency,” a comprehensive report for all health-care facilities. It provides a framework for creating and maintaining resilient and reliable medical gas systems, ensuring patients receive the necessary care, even in challenging circumstances.

For a comprehensive understanding of the water supply for a fire sprinkler system, fire protection engineers should identify the water resources, understand large water users, research historical data and adjust for variability.

Design, installation and maintenance are all important for properly operating a building’s hot water system. Who an owner hires to maintain the building is critical. Most maintenance personnel may not know how to troubleshoot hot water issues properly. Ron George has provided a checklist for domestic hot water systems’ design, installation and commissioning.

PPI has announced the publication of a new document that provides the technical basis for comparing PE 100-RC to PE4710 pressure pipe.