|  1 | Bore A hollowed out section of the item.  | 
|  2 | Rim A raised edge or border.  | 
|  3 | Web A complete structure or connected series.  | 
|  4 | Centre The middle point from any point on the circumference or surface.  | 
|  5 | Core The central or most important part of the item.  | 
|  6 | Surface The outer most surface of an item.  | 
|  7 | Beginning The sample is taken at the beginning of the specimen.  | 
|  8 | End The sample is taken at the end of the specimen.  | 
|  9 | Middle The sample is taken at the middle of the specimen.  | 
|  10 | Centre Back The sample location is centre across width, back end across length.  | 
|  11 | Centre front The sample location is centre across width, front end across length.  | 
|  12 | Centre middle The sample location is centre across width, middle end across length.  | 
|  13 | Edge back The sample location is on the edge across width, back end across length.  | 
|  14 | Edge front The sample location is on the edge across width, front end across length.  | 
|  15 | Edge middle The sample location is on the edge across the width, middle end across length.  | 
|  16 | Quarter back The sample location is a quarter way across the width, back end across length.  | 
|  17 | Quarter front The sample location is a quarter way across the width, front end across length.  | 
|  18 | Quarter middle The sample location is a quarter way across the width, middle end across length.  | 
|  19 | Weld The sample is taken from the weld of the specimen.  | 
|  20 | Body Sample is taken from the body of the specimen.  |