Is it the CSA standard you bought? I bought the one that was advertised as 70 pages. The breakdown is:
1 page: Cover
1 page: Legal Notice
1 page: Advertising the update service
1 page: Blank
1 page: Title
1 page: Copyright notice
2 pages: Table of contents
6 pages: List of committee members
1 page: Preface
1 page: Blank
1 page: Scope
5 pages: Definitions
16 pages: Standards
3 pages: Informative Annex
6 pages: Checklist
15 pages: History of major changes of the code
2 pages: Model guide for enforcement
3 pages: Minimum requirements
1 page: Bibliography
1 page: Blank
1 page: Recycled paper notice

There is some duplication between the checklist and the standards, as you would expect.

I've never been excited about the ability of CSA to produce a legal document and now I'm doubtful about their ability to stay out of the hands of the class-action lawyers. I'd like to sell 70 boxes of electrical parts, some of them empty and others containing just the name of the part. At least the recycled paper notice shouldn't have been counted on a copy that I down-loaded.