May 2019 www.chemengonline.com Level 05 Measurement Engineering Internships Petroleum Refiners Face Changing Energy Landscape Smart Sensors Personal Protective Equipment Facts at Your Fingertips: Low-Temperature Handling Focus on Weighing Modern Maintenance Methods page 34 MAINTENANCE * LEVEL MEASUREMENT VOL. 126 NO. 5 MAY 2019http://www.chemengonline.com