Way back in February 2016 I introduced many of you to ISA-RP12.12.03, Standard for Portable Electronic Products Suitable for Use in Class I and II, Division 2 for the first time and I received many e-mails, texts, and phone calls about those 2016 posts. Although the posts were speaking to smaller electronic devices, most notably “fitness bands”, the concept rubbed a lot of folks wrong. The idea that a facility could conduct its own tests on portable electronic products (PEPs) and “certify” them internally as fit for service within a HAZLOC was hard to wrap our heads around. But that was way back in 2016! In 2017 things changed dramatically for this standard and its application when…