Constants of the quartz-wedge saccharimeter and the specific rotation of sucrose. I. The constants for the 26-gram normal weight (1916)
National Bureau of Standards · leaf 13
3 exception of the aluminum vessel B and condensing coils C,is of glass, and with the exception of the small asbestos filter thesirup never comes in contact with any other substance. Theevacuating is done by a pump connected at D. The solution isplaced in the flask A, and the entire system… … Fig. I.—Vacuum apparatus for concentrating sirups temperature of the sirup noted on the thermometer G. In orderto obtain any desired boiling point it is only necessary to regulatethe pressure. The degree of the vacuum is indicated by themercury gauges H H. The efficiency of the assembly is suchthat…
Measurements and use of instruments · Light polarisation
Internet Archive · NIST Research Library · Public Domain Mark 1.0. Free to use for anything.
