© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 1

Risktec Solutions

The maze of Hazardous Area Classification guidance

risk management and assessment for business

© 2015 Risktec Solutions Limited

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 2

Dangerous vs Hazardous

Dangerous Substances and Explosive Atmospheres Regulations DSEAR

Control of Substances Hazardous to Health Regulations COSHH

So what’s the difference?

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 3

DSEAR or COSHH?

Classification, labelling and Packaging of substances and mixtures (CLP) Regulations

DSEAR Flammable Explosive Oxidising Dust Control Risk

from Fire / Explosion

Control Risk from

Occupational Exposure

COSHH Biological agent

Carcinogen Toxic

…

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 4

DSEAR Risk Assessment (Reg.5)

Objective

To identify and eliminate or reduce the risk from dangerous substances.

If the potential for Explosive atmosphere is identified, the risk reduction must include control of ignition sources using suitably EX rated equipment.

Suitably EX rated?

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 5

Hazardous Area Classification (Reg. 7)

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 6

Hazardous Area Classification (Reg. 7)

Office

Vestibule

Filter Pumps

Storage Racks

Zone 2Zone 2

Zone 2

Fire Exit

FLT Access

Zone 2: A place in which an explosive atmosphere is not likely to occur in normal operation, but if it does occur will persist for only a short time

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 7

Hazardous Area Classification Methodologies

BS EN 60079-10-1/2

EI 15 (Energy Institute)

HSL Quadvent

Modelling Software (DNV PHAST)

© 2015 Risktec Solutions Limited IOSH Edinburgh Branch, The maze of Hazardous Area Classification guidance Slide 8

Other Guidance

IGEM/SR/25 (Institute of Gas Engineers and Managers)

Purple Book (Scottish Whisky Association)

BCGA GN13 (British Compressed Gases Association)