In Italy, the standard that provides a practical and detailed methodology for this classification is the , also known as the Guida alla classificazione dei luoghi con pericolo di esplosione per la presenza di gas in applicazione della Norma CEI EN 60079-10-1 (CEI 31-87) . This article is your definitive guide to understanding and accessing the CEI 31-35 standard.
Its main objective is to help technical professionals perform a proper . This is not just a theoretical exercise; it is a mandatory step in the safety planning of many industrial plants, such as chemical and petrochemical sites, gas stations, and paint shops. The key steps in the classification procedure, as defined by the guide, are: cei 31-35 pdf
A place in which an explosive atmosphere consisting of a mixture with air of flammable substances is present continuously, for long periods, or frequently. In Italy, the standard that provides a practical
Available in hardcopy and PDF formats, primarily in Italian. Intertek Inform Where to Access the PDF This is not just a theoretical exercise; it
Ventilation plays a vital role in preventing explosions. The standard utilizes a meticulous workflow to calculate how air currents interact with gas leaks:
An area in which an explosive atmosphere is , but if it does occur, it will persist for a short period only . These zones typically exist around flanges, pipe joints, and pump seals where a leak is accidental. Crucial Factors in the Calculation Method
) : Using mathematical models to calculate exactly how far a hazardous zone extends from a release point.