Large organizations as technological universities comprise numerous laboratories which are very rarely audited by health and safety professionals due to limited manpower. Moreover, research activities are permanently progressing with a rapid hazard evolution hardly affordable for safety manager. The present paper proposes a methodology based on Assessment and Classification of Hazards in Laboratories (ACHiL). It allows professionals evaluating their laboratories' hazard level using an innovative platform. This tool includes a series of 28 specific hazards classified in a four level scale (from 0 to 3) allowing to identify laboratories with high level of danger or cumulative hazards. In fine, ACHiL, a hazard mapping platform, can be used as a safety management decision-making support tool for Safety Officers and Dean of School. © 2012 Elsevier Ltd.