The Canadian Standards Association (CSA), under whose auspices this National Standard was prepared, received its letters patent in 1919 and its accreditation into the National Standards System by the Canadian Standards Council.
CSA C22.2 No.60529-05-2005 history
2005CSA C22.2 No.60529-05-2005 Degrees of protection provided by enclosures (IP Code) Degr閟 de protection procur閟 par les enveloppes (Code IP)