Pest Remedies and Stock Dips. 57 



3. Under " composition," item (6) of the iorm of registration, 

 Clause 2 of these regulations, shall be stated the names of each and 

 every ingredient for which efficacy is claimed, together with the 

 minimum percentage amounts in which they are guaranteed to be 

 present, and the form in which they are claimed to occur. 



4. In making a statement of composition or analysis under Clause 

 2 of these regulations, recognized analytical terms shall be employed 

 wherever possible. A considerable degree of latitude in expression 

 may be recognized, but the Department shall reserve the right to 

 refuse registration on grounds of inadequate description of the dip. 



5. In the case of dips containing arsenic, there shall be stated 

 under Clause 2 of these regulations, in addition to any other form the 

 vendor may choose to adopt : — 



(a) The percentage amount of total arsenic expressed in terms 

 of the element arsenic, and 



(h) the percentage amount of arsenic in water-soluble form 

 expressed in terms of the element arsenic. 



The term " water-soluble " shall be understood to mean freely 

 soluble under the conditions prescribed for making up the tank fluid ; 

 that is to be such as to be present wholly in solution in the finished 

 dip. 



6. In the case of tobacco dips, tobacco extracts, and nicotine 

 products, there shall be stated under Clause 2 of these regulations a 

 guaranteed minimum percentage of nicotine. 



7. In the case of dips in which sulphur is combined with calcium, 

 sodium, potassium, or other basic element, and forming therewith 

 a water-soluble sulphide, there shall be stated, under Clause 2 of 

 these regulations : — 



(a) The percentage amount of sulphur present in the form 

 of water-soluble sulphide, and 



(6) the percentage amount of the basic element or elements 

 with which sulphur in the form of water-soluble sulphide 

 is combined ; or alternatively, the ratio of mono-sulphur 

 equivalent to total suphide sulphur. 



8. In the case of dips in which terms such as cresols, creosote, tar- 

 oils, and the like, are claimed as active ingredients, there shall be 

 given, under Clause 2 of these regulations, either the true chemical 

 designation or the range of boiling points of the mixed tar distillates, 

 or such other specifications as shall be acceptable to the Department. 



9. In the case of solid dips declaration of guaranteed percentage 

 composition, under Clause 2 of these regulations, shall be by weight, 

 and in the case of liquid dips declaration shall be by volume, i.e. 

 grammes of constituents per hundred cubic centimetres. A semi- 

 Suid dip shall be regarded as a liquid dip if recommended by the 

 vendor for use in a volumetric basis, and as a solid dip if recom- 

 mended for use on a gravimetric basis. 



10. In the case of sulphur sold for dipping purposes, there shall 

 be declared, under Clause 2 of these regulations, the minimum degree 

 of fineness by Chancel's test. 



