Monday, December 21, 2009

Global Scope of Explosive Atmospheres
Here is an illustrative global view of potentially explosive atmospheres which includes combustible dust. This is a slide from the presentation that was made at the 5th SIEEE meeting, 2 September 2009, Melbourne, Australia. Mr. Frank Lienesch was the Coordinator, Sectoral Initiative on Equipment for Explosive Environments. The session also reviewed the work underway by the Initiative and in particular the survey of the regulatory environment in the sector of Equipment for Environments with an Explosive Atmosphere

The specific purpose of the Sector Project is to develop common regulatory objectives (CROs) for the regulation of placing Equipment and Services for Explosive Environments placed on the market. The CROs shall include area classification, verification of the equipment and its production, installation, inspection, maintenance, repair and the related conformity assessment procedures for products, services and competency of personnel. The aim is to eliminate barriers against the free trade of equipment and services. This goal is quite similar to Global Harmonization Standard concerning the Hazard Communication Standard that OSHA is seeking comments on.

In regards to the current proposed OSHA Combustible Dust Standard it would benefit all stakeholders to address combustible dust under the same framework where flammable gases, vapors, and mists also present a potentially explosive environment. It does not make sense to separate combustible dust from the other explosive atmospheres. What do you think?

Equipment for Explosive Environments (SIEEE) .pdf
Working Party on Regulatory Cooperation and
Standardization Policies (WP.6)

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