Page 620 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

A-12.

Viscosity Conversions. (By permission, Tube Tums Div., Chemetron Corp., Bull. TT 72S.)

0 8 0 0 0 8 bi;?.
0 0 0 0 b bbbb. g
0 8 0 8 s O 808 s <.> (...) 0 0 000 0
13 .. � � � s se 0 a e e as s 0
0
"' "' "' "' "'

"'
v,

"' . 2; . ..... >
o.
"'
.. "O
"O
a,
"' "' _§o- � b�9 "'w ::::,
0 8 "' 8 0 0"'
0
8 000 bb Q.
oog 88 )(
To convert: into centistokes (v') into sq ft per sec (v)

from Metric units (centistokes) ...................... v = 0.000 010 76 v'
To convert other units in· from English units (sq ft per sec) v' = 92 900 v ....................
to kinematic viscosity in from Saybolt Universal (seconds) see Table I in ASTM Spec. D-446-39 converted from ASTM Spec. D-446-39
English units v (sq ft per (plotted for basic temperature 100 F)
sec) or in Metric units v' from Saybolt Furol (seconds) see Table I in ASTM Spec. D-666-44 converted from ASTM Spec. D-666-44
(plotted for std temp of 122 F)
(centistokes), use the 374 0.00403
chart or the formulas lo from Engler (seconds) v' = 0.147 Engler - E-- 1 - v = 0.000 001 58 Engler - El
ng er
ng er
the right: 171.5 0.00185
from Redwood standard (seconds) v' = 0.260 Redwood v = 0.000 002 80 Redwood -
- Redwood R d d
e woo
from absolute viscosity v' = centiEoises IJ = 32.2 µ �lb sec 2er sq ft)
density p (lb per cu ft)
------
To convert degrees API
Liquida lighter than water (API Formula) Liquids heavier than water (U.S. Bureau of Stds.)
and Baume into Specific
4 5
Gravity, use the formulas S peer 1c gravity 60/60F = 1. + Degrees API s -r 't D 145 B ,
l I.
T
.
peci ie grav1 y =
lo right: 13 5 145 - agrees aume