Foreword
Cooperating organizations
Specification
1. Scope
2. Reference
3. Basis of calculation
4. Dimensions and tolerances
Appendix
A. Basis of calculation for reduction factors
Tables
1. Equal angles
2. Unequal angles
3 and 4. Plain channels
5 and 6. Inwardly lipped channels
7 and 8. Outwardly lipped channels
9. Tee sections
10. Zed sections
11. Lipped zed sections
12. Plain channels back to back
13. Inwardly lipped channels back to back
14. Inwardly lipped channels lip to lip