| 释义 |
Saybolt|ˈseɪbɒlt|
The name of George M. Saybolt (d. 1924), U.S. chemist, used attrib. to designate an apparatus he invented for measuring the kinematic viscosity of liquids, esp. oils, by measuring the time taken by a fixed quantity of liquid to pass through a standard capillary tube under specified conditions; so Saybolt viscosity, the viscosity so measured, usu. expressed as Saybolt seconds.
1886B. Redwood in Jrnl. Soc. Chem. Industry 29 Mar. 124/2 The viscometer designed by Mr. G. M. Saybolt, inspector to the Standard Oil Company of New York, is before you... The Saybolt viscosimeter is not,..as at present constructed, suitable for use at very high temperatures. 1925A. B. Thompson Oil-Field Exploration & Development I. xi. 520 The viscosity of oils is generally measured in one or other of three types of instruments, the Engler, Redwood and Saybolt viscosimeters, or viscometers. 1955Kirk & Othmer Encycl. Chem. Technol. XIV. 763 Viscosity is normally reported simply as Saybolt Universal or Saybolt Furol seconds, but it may be converted to centistokes by means of appropriate tables. 1968Snell & Hilton Encycl. Industr. Chem. Analysis VI. 295 The Saybolt Furol viscosity of a bituminous material is the time, in sec, that it takes 60 ml of sample to flow through the calibrated Furol orifice of the Saybolt viscometer tube, measured under carefully controlled conditions. |