Specifications include, but are not limited to: Railroad Switch Tie Specifications • Treated hardwood without holes • Anti-split devices installed • Grade: American Railway Engineering Association Manual for Railway Engineering, Volume 1, Chapter 3., Part 2, Page 3-2-1 West Coast Lumber Inspection Bureau (W.C.L.I.B.) Grading Rules Number 17., Chapter 6, Paragraph 192-A, Page 175 • Treatment: American Wood Preservers Association (A.W.P.A.) Book of Standards, Specifications C3 and C6 o The preservative shall consist of a mixture of 50 percent by volume of creosote oil and 50 percent by volume of residuum oil; a 50/50 coal tar solution may also be used. o Final readings to be entered on the treating report. Treating reports and charts become a permanent record maintained by the treating company with open access to ARRC personnel
