HSG274

What it is

The detailed technical guidance that sits beneath L8: the practical "how", across three parts. It replaced the older, now-withdrawn HSG70.

Who it binds

Guidance (not an ACoP), but the recognised way to deliver the L8 duties.

What it covers

Part 1 cooling towers and evaporative condensers; Part 2 hot and cold water systems; Part 3 other risk systems. Temperatures, inspection intervals, cleaning and monitoring methods.

Key references

Part 1, cooling towers & evaporative condensers; Part 2, hot & cold water; Part 3, other risk systems.

Edition

Second edition 2024 (Part 1 updated; Parts 2–3 carried over from 2014)

Editions and clause references are confirmed against the publisher on the date shown; always check you are reading the current version. Nothing here is legal advice. See the control-parameters reference for the numbers, and all standards.