The consequence of accidents in the industry can be more severe than in others economic sectors. Chemical industry, or other similar facilities involving production, storage, processing and handling of reactive and unstable substances, requires a deeper focus on prevention and protection of equipment, persons, and environment. Brazil, in particular, has several storage and handling terminals which can be classified as terrestrial or waterway. In these terminals, tank farms containing liquids subject to ignition and fire comprise a huge quantity of equipment of storage that requires maintenance and inspection for assurance of their physical integrity and accessories thereof, which could fail. In this work, it is presented techniques for social research for assessment of safety perception of workers of storage terminals, and the survey submitted by e-mail, using a 5 points Likert scale. The research was based on Operational Safety Management System guidelines of ANP (Petroleum, Gas and Bio-fuels National Agency), which is numbered as Resolution #5/2014. It is important to highlight that the cited resolution is directed to oil refineries but could be used as reference to such work. In brief, the results of the survey application shows a high perception of safety by the group of managers, followed by health, safety and environment, HSE professionals, maintenance, operation and, then, administrative. It also shows the importance of training for operational safety improvement in this type of industry.