Atex 137 pdf

What ATEX 137?

ATEX 137 refers to minimum requirements for improving the health and safety protection of workers at risk from an explosive atmosphere. It was implemented in the UK by The Health and Safety Executive under The Dangerous Substances and Explosive Atmospheres Regulations 2002 (DSEAR).

What is ATEX classification?

In a hazardous dust environment, an ATEX Zone 21 is classified as an area that is classified 'as a place in which an explosive atmosphere in the form of a cloud of combustible dust in the air is likely to occur occasionally during normal operation' whereas an ATEX Zone 22 is classified as 'a place in which an explosive …

What is the purpose of ATEX?

ATEX is the name commonly given to the two European Directives for controlling explosive atmospheres: 1) Directive 99/92/EC (also known as 'ATEX 137' or the 'ATEX Workplace Directive') on minimum requirements for improving the health and safety protection of workers potentially at risk from explosive atmospheres.

What is the difference between ATEX and DSEAR?

DSEAR is for the assessment of a dangerous substance (gas, liquid, dust etc.) and ATEX provides guidance on the type of equipment you should use in each area once you have classified them as the result of an assessment.

Can you self certify ATEX?

Routes to ATEX certification Self-certification is allowed for products in Categories 2 and 3. These products are destined for use in the less hazardous zones: 1, 2, 21 and 22. The manufacturer can stipulate that the product conforms to the necessary standards.

What is an Ex zone?

Explosion Hazardous Areas are divided into zones according to risk probabilities. Within the European Union, these are defined by IEC/EN standards (IEC/EN 60079-10-1 or 2) as directed by ATEX. Put simply, the 0-zones (0 and 20) are highest risk probability, and 2-zones lowest (2 and 22). …

What is the difference between ATEX and UL?

The difference between these three is the testing/classification body. Each rating is created by a recognised standards body with ATEX Being European, UL being American and IECEx often used for international standards. Your company may choose a specific standard to base decisions from.