Table 2 Table Of Various Bath Fluids And Their Properties - Fluke 7341 User Manual

7341 Calibration Bath
User's Guide

Table 2 Table of Various Bath Fluids and Their Properties

Fluid Lower
(# = Hart Part No.) Temperature
Limit*
Halocarbon 0.8 –100°C (v)**
#5019
Methanol –96°C (fr)
Water 0°C (fr)
Ethylene –30°C (fr)
Glycol—50% #5020
Mineral Oil No.7 10°C (v)
#5011
Silicone Oil Type –40°C (v)**
200.05 #5010
Silicone Oil Type –30°C (v)**
200.10 #5012
Silicone Oil Type 10°C (v)
200.20 #5013
Silicone Oil Type 30°C (v)
200.50 #5014
Silicone Oil Type 70°C (v)
550 #5016
Silicone Oil Type 80°C (v)
710 #5017
Silicone Oil Type 66°C (v)
210-H
Heat Transfer Salt 180°C (fr)
#5001
*Limiting Factors — b - boiling point
**Very low water solubility, ice will form as a slush from condensation below freezing.
32
Upper
Temperature Flash Viscosity
Limit* Point (centistokes)
70°C (e) NONE 5.7 @ –50°C
0.8 @ 40°C
0.5 @ 70°C
10°C (fl,cc) 12°C 1.3 @ –35°C
0.66 @ 0°C
0.45 @ 20°C
95°C (b) NONE 1 @ 25°C
0.4 @ 75°C
90°C (b) NONE 7 @ 0°C
2 @ 50°C
0.7 @ 100°C
166°C (fl) 168°C 15 @ 75°C
5 @ 125°C
130°C (fl, cc) 133°C 5 @ 25°C
209°C (fl, cc) 211°C 10 @ 25°C
3 @ 135°C
230°C (fl, cc) 232°C 20 @ 25°C
278°C (fl, cc) 280°C 50 @ 25°C
230°C (fl, cc) 232°C 50 @ 70°C
300°C (fl, oc) 10 @ 104°C
300°C (fl, oc) 302°C 50 @ 80°C
7 @ 204°C
313°C (fl, oc) 315°C 50 @ 66°C
14 @ 204°C
550°C NONE 34 @ 150°C
6.5 @ 300°C
2.4 @ 500°C
e - high evaporation fl - flash point
ing pour point, freeze point, important viscosity points, flash point, boiling
point and others may be shown.
Freezing Point: The freezing point of a fluid is an obvious limitation to stir-
ring. As the freezing point is approached high viscosity may also limit
performance.
Pour Point: This represents a handling limit for the fluid.
Viscosity: Points shown are at 50 and 10 centistokes viscosity. When viscosity
is greater than 50 centistokes stirring is very poor and the fluid is unsatisfactory
for bath applications. Optimum stirring generally occurs at 10 centistokes and
below.
Specific Specific Heat
Gravity (cal/g/°C)
1.71 @ 40°C 0.2
0.810 @ 0°C 0.6
0.792 @ 20°C
1.00 1.00
1.05 0.8 @ 0°C
0.87 @ 25°C 0.48 @ 25°C
0.84 @ 75°C 0.53 @ 75°C
0.81 @ 125°C 0.57 @ 125°C
0.92 @ 25°C 0.4
0.934 @ 25°C 0.43 @ 40°C
0.45 @ 100°C
0.482 @ 200°C
0.949 @ 25°C 0.370 @ 40°C
0.393 @ 100°C
0.420 @ 200°C
0.96 @ 25°C 0.4
1.07 @ 25°C 0.358 @ 40°C
0.386 @ 100°C
0.433 @ 200°C
1.11 @ 25°C 0.363 @ 40°C
0.454 @ 100°C
0.505 @ 200°C
0.96 @ 25°C 0.34 @ 100°C
2.0 @ 150°C 0.33
1.9 @ 300°C
1.7 @ 500°C
fr - freeze point v - viscosity — Flash point test oc = open cup cc = closed cup
Thermal Thermal
Conductivity Expansion Resistivity
(cal/s/cm/°C) (cm/cm/°C)
(10
0.0004 0.0011
0.0005 @ 20°C 0.0014 @ 25°C
0.0014 0.0002 @ 25°C
0.001
0.00025 @ 25°C 0.0007 @ 50°C 5 @ 25°C
0.00028 @ 25°C 0.00105 1000 @ 25°C
10 @ 150°C
0.00032 @ 25°C 0.00108 1000 @ 25°C
50 @ 150°C
0.00034 @ 25°C 0.00107 1000 @ 25°C
50 @ 150°C
0.00037 @ 25°C 0.00104 1000 @ 25°C
50 @ 150°C
0.00035 @ 25°C 0.00075 100 @ 25°C
1 @ 150°C
0.00035 @ 25°C 0.00077 100 @ 25°C
1 @ 150°C
0.0003 0.00095 100 @ 25°C
1 @ 150°C
1.7 Ω /cm
0.0014 0.00041
12 Ω-cm )
3