TS EN 61882

TS EN 61882 is an application guide for conducting HAZOP studies and organising them in a systematic way. At its core, the document explains how to examine deviations from intended operation in a process or system and how to assess the resulting hazard and operability concerns early and consistently. It provides a methodological framework for teams using HAZOP; it is not, by itself, a design specification or equipment standard.

Purpose and working principle of HAZOP

In general technical practice, HAZOP is a structured review technique based on guide words. It is used to reveal possible deviations in process parameters such as flow, pressure, temperature, level, composition or sequence. The value of the method lies not only in identifying what can go wrong, but in linking each deviation to its causes, consequences, existing safeguards and any follow-up actions that may be needed. This makes HAZOP especially useful in complex, interdependent environments such as process industries, manufacturing systems and operating procedures.

What this standard covers in practice

According to the supplied scope information, the standard gives guidance on the definition of a HAZOP study, preparation, examination sessions, resulting documentation and follow-up. It also includes documentation examples and a broad set of examples covering different applications. A notable technical update in this edition is the clarification of terminology and alignment with the risk management terms used in ISO 31000 and ISO Guide 73. This helps teams use a common vocabulary and produce results that are easier to trace and compare.

This document is useful for engineering, quality and operations teams that need a disciplined way to organise HAZOP workshops and interpret the outcomes. When process safety, operability and operational behaviour all matter, HAZOP serves as a structured review tool that supports better decision-making.