A simple viscometer

✍ Scribed by Wheeler, W. C. G.

• Book ID: 102332294
• Publisher: Wiley (John Wiley & Sons)
• Year: 1941
• Weight: 80 KB
• Volume: 60
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000601108

✦ Synopsis

The stnndnrd U-tihe visconictcr suffers froni certnin diendvnut.ngcs which milit.nte ngiinst its use ns n prnctied iustrunicnt for routine tlctcrniinntions of kineinntic viscosity. l'lte printnry tlisntlvnntnge is the necessity for introdncing nu csnct voluuie of liquid. To ovoid wetting the tuhe nbovc the jirnduntion ninrk nnd n t the snttte time nvoid n froth of nir bubbles, sonic sort of filling device, sucli ns n iiiirroo\.-steniitic(l tnp funnel, is required. Tliis, in turn, lins to I)c clcnned niid dried for t,lie ncst sninple. A fiirtlicr scrioris di~ndvnntngc which derives from the first, is tlint, strictly spcnking, tlic instrmnent must be ctnptied, clenued, dried, nnd refilled for 11 clctcriniuntion nt nnotlter teinpcrnture.