The Making of an ISO 7010 Symbol

Understanding the Process to Create Standardized Symbols and How It Effects Your On-product Warnings The previous column in this series centered on the International Organization for Standardization (ISO) tech... Read More...

Arson Under the Christmas Tree

A rural mountain cottage fire was initially ruled as an accidental Christmas tree fire. The insurance company’s Special Investigation Unit discovered information that prompted further fire scene investigation. The scene investigation resulted in evidence that the fire was likely intentionally set.

Safety of Free-Space Optical Communications Systems

This article examines the optical safety considerations of free-space optical communication systems (FSOC). These telecommunication systems communicate over distances through free space using optical communication technology.

Experiments of DC Human Body Resistance I

Direct Current (DC) applications have become more prevalent in recent years, primarily due to the increased usage of renewable energy and energy storage systems. A review of the existing safety standards and other literature shows that there is limited experimental data on DC human body resistance. In particular, no information was found by the authors describing the repeatability of DC body impedance and the effect of contact material and other variables.