SACCHARINE PRODUCTS. 



67 



b? II perature than 17.5 C., the result should be corrected by the use of the following 

 table : 



Table for correction of the readings of the Brix spindle when the reading is 

 made at other than the standard temperature, 17.5. 



[For temperatures below 17.5 the correction Is to be subtracted.] 



Example. A sugar solution shows a reading of 30.2 Brix at 30 C. To find 

 the necessary correction for the conversion of this reading to the reading which 

 would have been obtained if the observation had been made at 17.5 C., find the 

 vertical column in the table headed 30 Brix, which is the nearest to the 

 observed reading. Follow down this column until the number is reached which 

 is opposite to the temperature of observation in this case 30. The number 

 found, 0.92, is to be added to the observed reading. 



3. Ash. 



(a) DETERMINATION. OFFICIAL. 

 (1) METHOD i. 



Heat from 5 to 10 grams of sugar, molasses, maple products, or honey in a 

 platinum dish a of from 50 to 100 cc capacity at 100 C. until the water is 

 expelled, and then slowly over a flame until intumescence ceases. Then place 

 the dish in a muffle and heat at low redness until a white ash is obtained. 



For soluble ash digest the ash obtained as above with water, filter through a 

 gooch, wash with hot water, and dry the residue at 100 C. 



If the substance contains tin or any other metal capable of uniting with platinum, a 

 dish made of some other material must be used. 



