1-14. FUNCTIONAL DESCRIPTION OF PETROLEUM LABORATORY UNIQUE EQUIPMENT - continued.
Low Pressure Boiler (Steam Generator). The low pressure boiler is located in the mechanical room, on the left
side as you enter the compartment. It operates on 208V, 60Hz, 3-phase power supplied by A15CB5 located in
POWER PANEL NO. 2. The low pressure steam boiler is used to preheat water from the water tank for the high
pressure steam boiler which is used with the gum bath. The low pressure steam boiler has its own circulator pump
which can be used to draw water form the water tank, or external water supply; if tank or external water supply is
under pressure, circulator pump need not be turned on. The boiler is equipped with an automatic water fill system
and sightglass. The automatic water feeder system will automatically fill the boiler to proper level and shut off water
via an internal float valve. The low pressure boiler also contains a pressure gage, pressure cutoff switch and a
pressure release valve to protect the boiler from damage if boiler pressure is too high, or water level is too low.
Fume Hood. The fume hood is built into the front wall of the laboratory to the left of the gum bath. The
exhaust blower and the light are activated by switches located on the left side wall near the icemaker. The fume
hood incorporates two vapor proof electrical receptacles. The glass window moves vertically for access to the
interior. Four stopcocks in the unit provide capability for the use of water supply, water return, air and vacuum. The
fume hood protects the operator from toxic, corrosive, poisonous, explosive, radioactive, odoriferous, and other
harmful and dangerous materials. It provides an area in which solids can be crystallized by controlled evaporation,
and in which heat and steam can be exhausted.
Ice Maker (Freezer). The ice maker is mounted into the front wall of the laboratory compartment to the left of
the fume hood. It operates on 11OV, 60Hz, single-phase power supplied by A1CB8 located in the MAIN POWER
PANEL. It is a plug-in-type freezer unit.
Water Detector Kit. The water detector kit is contained in a carrying case and is stored in laboratory cabinets.
It operates on power supplied by either an external battery, an internal rechargeable battery, or 110V, 60Hz, single-
phase power. It is used for ASTM test D-3240-75 measures the amount of undissolved water in kerosene-type jet
fuels. It can be used on other fluids by following the proper procedures.
Cloud and Pour Point Apparatus. The cloud and pour point chamber is stored in the laboratory cabinets. It is
designed to comply with the requirements specified in ASTM Method D-97. The assembly of four jackets may be
raised or lowered on the rod support to vary depth of jackets in the cooling medium (dry ice and acetone; dry ice and
alcohol), according to the standard test procedure. The bath is equipped with a drain plug near the bottom, and a
cover provided with openings to admit passage of test jars and thermometers. Both bath and cover are fitted with
handles. The test apparatus includes four ASTM high-range thermometers and drilled cork stoppers.
Grease Dropping Point Apparatus. The dropping point apparatus is stored in the laboratory cabinets. It is used
for ASTM test D-566. It performs dropping point determinations for quality control and classification of lubricating
greases and is equipped with 400-ml oil bath, 1/40 hp stirrer, heater and dropping point assembly. It includes a
chromium plated grease cup, test tube with cup support indentations, thermometer depth gauge, polished metal rod
and cork ring guide. The bath rests on a 550W stepless control heater with reference dial and refractory top plate. It
has a temperature range from ambient to 350°F (177°C) and a heater range from 0 to 550W.