The problem is that I don’t have access to the CSA standard. But I’m sure many of our members do. Would you be willing to post this as a question for the whole OHSI membership or do you prefer to keep it confidential? If the latter, would you be willing to gmail the relevant excerpts from the standard so I can have a look. glennd@bongarde.com. One way or another, we’ll help you work through this.