72 
BULLETIN 1216, U. S. DEPARTMENT OF AGRK'l'L'J IKK 
ANALYSIS. 
Waxes Test. 
Still 2. (a) still. — A vertical, cylindrical copper si ill. with remov- 
able flanged top and yoke, of the form ami approximate dimensions 
shown in Figure 8 shall he used. 
Thermometer. (in Thermometer. — The standard distillation thermometer, as 
Specified under "Distillation," section '.) In. shall he nscil. 
Condenser. (c) Condenser. — A copper trough condenser shall he used, with 
Straight-walled glass tube, having approximately the form and 
dimensions shown in Figure '.». 
Separatory ( d ) Sepa ratory funnel.— A scparatory tunnel of the form shown 
fannel. in Figure !J shall he used, having a total capacity of 120 cubic 
centimeters, and the outlet graduated in fifths or a cubic centi- 
meter. 
8. The apparatus shall he set up as shown in Figure 9. 
4. When any measurable amount of water is present in the dis- 
tillate below "-'Id ( '. on testing in accordance with part J> on 
Ring 
Burner 
D =W 
<•- Thermometer 
$ 
U 38. 75cm .-----•>) 
Connecting I 
Tube I 
YMcmA ■ 5h " 
Separatory 
Fur,', ,\ .. 
( Capacity 
' 120 cc.) 
Graduated 
oCb 
Assembled apparatus for wa 
test 
"Distillation." the oil and water in this fraction shall he sep- 
arated, If possible, and measured separately. 11' more than 2 per 
cent of water is present, or if the water is apparently present to 
an extent in excess of 2 per cent, hut an accurate separation is 
Impossible, the percentage of water present shall he determined 
by the following method, and the water-free oil so obtained shall 
he used in the distillation test : 
Method of test. .Measure 200 cubic centimeters of oil in a graduated cylinder 
and pour into copper still, allowing Ihe cylinder to drain into Ihe 
Still for several minutes. Attach lid and clamp, using a paper 
gaskel slightly wet with oil around the flange of the still. Apply 
heat by means of the ring burner, which shall he placed just above 
