414 SELLINGLUMBER 



A pitch pocket showing open on both sides of the piece, 

 j/8 of an inch or more in width, shall be considered the same 

 as a knot hole of equal size. 



16. A pitch streak is a well-defined accumulation of pitch 

 at one point in the piece, and when not sufficient to develop a 

 well defined streak, or where fiber between grains is not satur- 

 ated with pitch, it shall not be considered a defect. 



A small pitch streak shall be equivalent to not over 1/12 

 the width and 1/6 of the length of the piece it is in. 



A standard pitch streak shall be equivalent to not over 1/6 

 the width and 1/3 of the length of the piece it is in. 



WANE. 



17. Wane is bark, or the lack of bark, or a decrease of 

 wood from any cause, on the edge of the piece. 



SAP. 



18. Bright Sap shall not be considered a defect in any 

 of the grades provided for and described in these rules. The 

 restriction or exclusion of bright sap constitutes a special class 

 of material which can only be secured by special contract. 



19. Sap Stain shall not be considered a defect In any of 

 the grades of Common Lumber. 



CLOSE GRAIN. 



20. "Close Grain." The term "close grain" shall mean an 

 average of not less than six annular rings to the inch. 



DEFECTIVE GRAIN. 



21. Chipped grain consists in a part of the surface being 

 chipped or broken out in small particles below the line of the 

 cut, and, as usually found, should not be classed as torn grain, 

 and shall not be considered a defect. 



Torn grain consists in a part of the wood being torn out 

 in dressing, and is of four distinct characters slight, medium, 

 heavy and deep. 



Slight torn grain should not exceed 1/32 of an inch in depth, 

 medium torn grain 1/16 of an inch, and heavy torn grain Ys 

 of an inch. Any torn grain heavier than % of an inch shall 

 be termed deep. 



Loosened grain consists in a point of one grain being torn 

 loose from the next grain. 



