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Conversion of RROHS permissible exposure values (PEVs) expressed in ppm

Utility 

This bilingual computer-based tool makes it possible to access the permissible exposure values (PEVs) in Schedule 1 of the 2007 RROHS as well as the designations and remarks for each of the substances. It also allows conversion of the PEVs expressed in ppm for conditions other than 25°C and 760 mm of Hg (NTP conditions). Similar to the PELs of OSHA, the RELs of NIOSH and the TLVs® of the ACGIH®, the PEVs of the RROHS expressed in ppm are for 25°C and 760 mm of mercury. PEVs whose units are in mg/m3 or fibres/cm3 are invariable.

Daniel Drolet, chemist, IRSST
For information and comments: drolet.daniel@irsst.qc.ca
 

NOTICE!

This file contains macros

On opening the file, you must absolutely:
  1. Save the file in your computer, and then close it..
  2. Open the Excel file that you have just saved.
  3. Turn on the macrosto allow the utility to work

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The file doesn't seem to work?
Follow the steps below or open comment
this link to see how to change the security level for macros in Excel 2000-2003 (In french only)

  • The security/macros option for EXCEL parameters has deactivated them. You must modify the security/macros level.
  • Select the TOOLS menu, MACROS sub-menu, and the SECURITY sub-sub-menu and choose one of the following options: MEDIUM level or LOW level.
  • This change will take effect only after you have closed and restarted the Excel software.
* If you use Excel 2007, please follow the instructions on this link
* If you use Excel 2010, please follow the instructions on this link

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