Introduction - Page 1
Introduction...........................................................................1
Use Category System Standards - Page 5
U1-15: User Specification for Treated Wood
1. Introduction to the Use Category System..........................5
2. Service Conditions for Use Category Designations ..........6
3. Guide to Treated Wood End Uses.....................................8
4. Standardized Preservatives..............................................12
5. Species and Species Groupings.......................................14
6. Commodity Specifications ..............................................19
A. Sawn Products.......................................................20
B. Posts.......................................................................37
C. Crossties and Switchties ........................................43
D. Poles ......................................................................45
E. Round Timber Piling..............................................51
F. Wood Composites..................................................53
G. Marine Applications ..............................................60
H. Fire Retardant Treated Products............................67
I. Nonpressure Applications.......................................69
J. Nonpressure Composites ........................................70
T1-15: Processing and Treatment Standard
Introduction.........................................................................73
1. General Requirements.....................................................74
2. Treatment ........................................................................75
3. Results of Treatment .......................................................76
4. Preservatives ...................................................................79
5. Quality Control and Inspection .......................................79
6. Retreatment .....................................................................79
7. Drying After Treatment...................................................79
8. Special Requirements by Commodity .............................80
A. Sawn Products.......................................................80
B. Posts.......................................................................85
C. Crossties and Switchties ........................................88
D. Poles ......................................................................90
E. Round Timber Piles ...............................................97
F. Pressure Treated Composites .................................99
G. Marine Applications ............................................103
H. Fire Retardant Treated Products..........................107
I. Millwork and Manufactured Goods......................108
J. Nonpressure Composites ......................................109
Preservative/Protectant Standards - Page 113
P1/P13-13: Standard for Creosote Preservative .................113
P2-13: Standard for Creosote Solution...............................114
P3-14: Standard for Creosote-Petroleum Solution .............115