232 



Analysis of Sour Milk. 



proper and uniform condition for analysis. In such cases the 

 Government Laboratory declines to proceed with the examina- 

 tion. Such a result, however, practically never happens in the 

 case of samples which have been properly taken and kept by the 

 inspectors pending the appeal to the Government Laboratory. 



The details of the methods of analysis adopted in the Govern- 

 ment Laboratory were fully inquired into by the Committee 

 which preceded the issue of the Sale of Milk Regulations in 

 1901, and are given in Appendix XXIX. to the Minutes of 

 Evidence taken before the Departmental Committee on Milk 

 and Cream Regulations [Cd. 484]. 



The following tables [Cd. 484, Appendix XXIX.] give the 

 results of the analysis of a series of milks analysed in the fresh 

 state and after the lapse of several weeks. The examination was 

 carried beyond the time at which a milk would be referred to 

 the Government Laboratory under the Food and Drugs Acts, but 

 it will be seen that the changes can be accurately followed and 

 allowed for. The comparison of the corrected non-fatty solids 

 with the solids of the fresh milk shows that the variations are 

 not greater than may occur in duplicate determinations of the 

 constituents of a fresh milk : — 



Whole Milks. 





Fresh Milk. 





Kept Milk 





Total 



Loss. 



No. 

















Non-fatty 

 solids. 



Fat. 



Time 

 in days. 



Non-fatty 

 solids. 



Fat. 



Calcu- 

 lated. 



Actual. 



1 



IA 

 IB 

 IC 

 2 



3 



3A 



4 



5 



5A 

 5B 



6 

 8 



9 

 10 

 11 

 12 

 13 

 14 



8-97 

 8-97 

 8-97 

 8-97 



8- 99 

 9*12 

 9* 12 



9- 02 

 9-02 

 9* 02 

 9* 02 

 9'i3 

 9' 52 

 9-27 

 9' 1 1 

 9"34 

 8-42 

 8-83 



9*20 



4* 08 

 4-08 

 4-08 

 4-08 

 3-17 

 4* 16 

 4' 16 

 472 

 3-28 

 3-28 



3- 8 

 4*49 

 4* 06 



4- 07 

 4-19 

 4-07 

 3 7o 

 5*32 

 J98 



21 

 27 

 50 

 85 

 27 

 42 

 I02 

 41 

 52 



79 

 93 

 57 

 74 

 77 

 9i 

 9i 

 91 

 9i 

 9i 



8-71 



8-74 

 8-6i 



8-49 

 8-6o 

 8-82 

 8-88 

 8-56 

 876 

 8-53 

 8-35 



8- 88 



9- 25 

 8-91 



8- 24 



9- 01 

 8-14 

 8-56 

 8- 80 



4' 02 



3' 97 

 4-00 

 4- 09 

 3" .16 

 4-18 

 4 - 18 

 4-65 

 3'25 

 3 "34 

 3 -27 



4*35 

 3' 92 

 4-06 

 4-14 

 1 4'Oi 

 3-69 



5*20 



3-83 



•20 

 •21 

 •34 

 •49 

 '35 

 •33 

 •25 

 •58 

 •20 



'49 

 •61 



•23 

 '35 

 •32 

 •76 



'4i 

 •26 



•31 



'39 



•26 

 •23 

 •36 

 •48 

 •39 

 •30 

 •24 

 •46 

 •26 



•49 

 •67 



•25 

 •27 



•36 

 •87 



•33 

 •28 

 •27 

 •40 



