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UTILITY 18-465 Manual

Refractometer

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POLAR GRADE
This refractometer is designed to test solutions of NO-FREEZ,
SAFE
NO-FREEZ,
GUARD. It can also be used to test battery charges, as well as other propylene and ethylene glycol solutions.With the
Instructions found on the the reverse side, it can also test
solutions. It is very easy to use and very accurate as long as it is used properly.
Before and after use, swing open the plastic cover at the slanted end of the refractometer. You have uncovered
the measurement window. Wipe this window and the plastic cover clean and dry with a tissue or a dry cloth. Close
the plastic cover.
Be sure that the plastic tube is clean and completely free of any residue. Rinse this tube with water after
each test. Do not remove the plastic tube from the refractometer, just dip the end of the tube into the fluid to be tested
(do not use the tube pump for battery testing). Be sure the fluid is properly blended and is indicative of the entire
solution. Press and release the bulb to draw up a sample of the solution. Bend the tube around the refractometer
and press the bulb to place a few drops of solution into the opening in the plastic cover between the hinge and
the measurement window. Never open the plastic cover when taking readings. The reading can be affected by the
evaporation of water from the fluid sample being tested.
Point the instrument towards any bright light and look into the eyepiece. The refractometer has an eyeguard
that can be used in two positions. When wearing eyeglasses, the eyeguard should be folded back; when no eyewear
is worn the eyeguard should be fully extended. Proper positioning of the eyeguard will help eliminate stray light and
improve image quality. The scales in the refractometer window are opposite that of a standard thermometer in that
below zero readings are on the upper half of the scale. The reading is at the point where the dividing line between
light and dark (shadow edge) crosses the scale. If the shadow edge is not sharp, the measuring surfaces were not
cleaned well and dried, or there is not enough fluid in the measurement window. The scale is not visible until the
liquid is placed on the measurement window. If the concentration of the fluid is greater than the scale limits, you will
not see a shadow line.
7 0 0
M A I N
WESTBURY , NY 11590 U.S.A.
(516) 997-6300 FAX# (516) 997-6345
w w w.
U t i l i t y
C h e m i c a l s
REFRACTOMETER
(ITEM#18-465)
INSTRUCTIONS FOR USE
POLAR GRADE
SUPER
NO-FREEZ
Fire
(70%)
(64%)
1.400
-60 (59%)
-50 (56%)
1.350
-40 (52%)
-34 (50%)
-30 (48%)
1.300
-20 (44%)
1.250
-10 (39%)
-5 (36%)
1.200
0 (33%)
+5 (36%)
1.150
+10 (25%)
+15 (21%)
1.100
+20 (16%)
BATTERY
CHARGE
+25 (10%)
SPECIFIC
GRAVITY
ETHYLENE
GLYCOL
+32
(0%)
0
FREEZE POINT
(% GLYCOL BY VOLUME)
S T R E E T
. c o m
POLAR GRADE
NO-FREEZ,
CONCENTRATE,
and other Glycerine-based
&
-GL-
ice
Master
-60 (63%)
-50 (60%)
-40 (57%)
-30 (53%)
-20 (49%)
-10 (44%)
-5 (41%)
0 (38%)
+5 (34%)
+10 (30%)
+15 (25%)
+20 (19%)
+25 (12%)
PROPYLENE
GLYCOL
+32
(0%)
0
F
0
ALUMINUM
and
PIPE GUARD
RV

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Summary of Contents for UTILITY 18-465

  • Page 1 (516) 997-6300 FAX# (516) 997-6345 w w w. U t i l i t y C h e m i c a l s . c o m REFRACTOMETER (ITEM#18-465) INSTRUCTIONS FOR USE POLAR GRADE POLAR GRADE POLAR GRADE ALUMINUM...
  • Page 2 You now have determined the freeze point. The freeze point is defined as the point at which an ice particle is first observed in a liquid as the liquid is slowly cooled. Propylene glycol solutions do not have sharp freezing points. They slush as they cool, never really achieving a solid state.

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Utl18-465