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treated in the same cylinder charge shall be approximately of the same 

 moisture content. In loading piling into cylinder charges the following 

 classes of material shall be treated, each by itself: 



1. Green or freshly cut piling. 



2. Piling water stored for thirty (30) days or more. 



3. Partially air seasoned piling. 



4. Thoroughly air seasoned piling. 



Any further separation or segregation of material shall be op- 

 tional with the creosoting company 



Inspection of Material Before Treatment 



Before the material is loaded into tram cars for treatment the in- 

 spector shall be given full opportunity to examine it and to check 

 the cubature records of the plant for each cylinder charge, and these 

 records shall be open for his inspection at all times. 



Thermometers and Gauges 



All the treating cylinders of the creosoting company which are 

 used on work covered by this specification shall be provided with the 

 following accurate reading instruments: 



(1) Recording Thermometers. 



(2) Recording Pressure Gauges. 



(3) Recording Vacuum Gauges, or combination recording pressure 

 and vacuum gauges. 



(4) Indicating Mercurial Thermometers as a check against the 

 Recording Thermometers. 



(5) The creosoting company shall also provide accurate maximum 

 reading thermometers for use by the inspector from time to time in 

 checking the recording and indicating thermometers. 



The inspector must check the recording thermometers as well as 

 the indicating thermometers at frequent intervals. This may be done 

 ,by placing a maximum reading thermometer at some place on the 

 charge which will bring it as near as possible to the thermometer 

 which is to be checked. 



When the charge is removed from treating cylinder after treat- 

 ment the maximum reading thermometers shall then be read and this 

 reading checked against the maximum temperature recorded by the 

 recording thermometer. Should there be a variation greater than five 

 (5) degrees Fahr. in the reading of the two instruments, the maximum 

 reading thermometer being correct, the recording thermometer shall 

 be adjusted. 



