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THE BELL SYSTEM TECHNICAL JOURNAL, MARCH 1953 



Table XXII — Creosote Losses from Southern Pine Posts 

 Analyses of original creosote and of creosote extracted from posts after 4 

 years in test; 1936 series; Gulfport test plot — BTL (Waterman) data. 



Specific gravity 



Distillation, water free, per cent, cumulative 



to210°C 



210-235 



235-270. 

 270-300. 

 3QO-315. 

 315-355. 

 Residue . 

 Total... 



Sulphonation, residue, gm/100 ml 

 Tar acids, gm/100 ml 



* Average analyses of toluene extracted oils from disks cut adjacent to decay 

 line; posts 273 and 280. The estimated average loss, based on residue increase, is 

 61.1 per cent. 



Table XXIII — Creosote Losses from Southern 

 Pine Test Posts 

 By zones, by toluene extraction; 1936 series; Gulfport test plot — BTL 

 (Waterman) data. 



Post No. 



Years in Test 



Retention, by extraction Ib/cu ft 



Whole cross 

 section 



Zones, inches 



Outer J^ Next H.Next yi Next 



Remainder of 



treated 



sapwood 



* Average analyses of boring samples. 



t Average analyses of sectors cut from a disk taken 3 inches above maximum 

 decay line. 



X Average analyses of sectors cut from two disks taken 3 inches above and 3 

 inches below the maximum decay line. (See Table XXII for analyses of original 

 and extracted creosote.) 



§ Average loss, estimated from retentions at treatment and after removal: 

 For whole cross section 60.3 per cent 



For outer 1 inch 



Post 273 70.3 per cent 



Post 280 64.0 per cent 



Average 67.2 per cent 



