FIELD T-Z 

 Columns 58, 59, 60, and 61 



FF-- Excretion, secretion, guttation, exudation of the test compound or any other type of foreign 

 compound (indicated by the last unit of the symbol) via the excretory or secretory path indi- 

 cated by the third unit of the symbol. Symbol FF is never used alone (with no coding in 

 Columns 60 and 61), but only as one of the FF- series (FFl, FF2, FF3, etc. ), combined with 



a symbol of a second series ( 1, 2, etc. ). Note that symbols of the FF-- series are 



used only when the material excreted or secreted is the test compound or when it is any 

 material not normally excreted or secreted over the specific excretory or secretory path in- 

 volved. (It may be a material normally excreted or secreted by the organism, but if it is over 

 an abnormal path, It should be coded by a symbol of the FF-- series. ) If it is not the test 

 compound whose excretion or secretion is being coded or if it is a material normally excreted 

 or secreted over the secretory or excretory path, use Symbol FC-- instead of Symbol FF--. 

 The two symbol series referred to above, by which symbols of the FF-- series are composed, 

 are presented together, below, for convenience in referring to both. 



The items of each of the following two lists are represented by incomplete symbols. Any sym- 

 bol of one list must be combined with one of the symbols of the other to form a complete symbol. In 

 other words, any of the materials of the first list (the test compound, B, or any other foreign mate- 

 rial, 1, — Z, etc. ) can be indicated as being excreted or secreted over any excretory or secretory 



path (FFl- [FFU, FF12, etc.], FF2- [FF21, FF22, etc.], etc.). See the preceding definiUon of FF--. 

 If the foreign material secreted or excreted is not the test compound and if its specific identity is 

 determined, code the specific material secreted or excreted in Field D. 



Secretory or excretory path. The following 

 items are anatomical structures, the products 

 of structures, or processes, each of which 

 represents a path over which the test compound 

 or other material of the opposing list may be 

 eliminated. Use of an item of this list does 

 not supplant coding in Fields H-1 and/or I 

 and the specific structure indicated by the 

 symbol used from this list must be coded in 

 Fields H-1 and/or I. Of this list. Symbol 

 FFA- (vomiting) represents a rejective elimi- 

 nation and not excretion or secretion. It is 

 used in preference to any other symbol, 

 however, to code such elimination of the test 

 compound or other foreign material ingested. 



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