3*-Lancaster 1972
PSU Develops Truck-Mounted
Metering for Farm Bulk Milk
A new truck-mounted metering
system for farm bulk milk, the
first of its knid in the nation to
commercially measure milk, was
described October 3 at a joint
convention of milk and ice cream
industry personnel in Atlantic
City, N.J.
Developed by dairy scientists
at The Pennsylvania State
University, the new milk
metering system has been ap
proved by the Pennsylvania
Bureau of Standard Weights and
Measures, announced Dr. Ed
ward D. Glass of the Agricultural
Experiment Station at Penn
State. He addressed the annual
meeting of the Milk Industry
Foundation and the International
Association of Ice Cream
Manufacturers.
Industry officials said the
system could well-nigh
revolutionize the collection of
Need . . .
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Esbenshade Turkey Farm
PARADISE PA.
bulk milk. The changeover to
such meters may take several
years, they indicated, but they
said meters will replace the
present use of calibrated gage
rods immersed in milk.
Prior to the National Con
ference on Weights and Measures
in July of this year, there were no
legal specifications and
tolerances covering the ap
plication of sanitary metering
systems to commercial
measurement of milk. Now
Handbook 44 of the National
Bureau of Standards provides the
framework within which any
state can officially accept or
reject vehicle-mounted sanitary
metering systems.
Dr. Glass said the primary
problem in accurately metering
milk from farm bulk tanks is to
eliminate air. Normally, a
volumetric meter will measure
passage of air in the same
manner as it measures liquid.
Mounted on a bulk tank truck, the
metering system includes
sanitary jnilk pump, air
elimination equipment, sanitary
meter, and sanitary piping and
valves.
Development of the prototype
equipment at Penn State
eliminates nearly 10 years of
experiments. The meter has
been tested with standard
volumes of milk ranging from 100
to 300 gallons. It was found
repeatable at plus or minus 0.3
per cent.
A working prototype of the milk
metering system has been field
Keeping Cotton
Flame-Resistant
Some cotton garments with a
fire retardant finish can lose
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detergents in areas of
moderately hard or hard water.
Research indicates, however,
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corrected by rinsing the cottons
in a mild acid solution during
laundering. This is most easily
done by adding about eight
ounces of white sugar to the rinse
cycle of household washing
machines. If preferred, the
cottons can be sent to a com
mercial laundry where a mild
acid rinse is part of the standard
laundering procedure.
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ATTENTION:
DAIRY
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BROWN &
REA INC.
ATGLEN, PA.
tested for 15 months following
examination by the National
Bureau of Standards, Dr. Glass
stated. The system is being used
as a basis for commercial
payment to farmers selling milk
to the University Creamery.
Research currently underway
is comparing accuracy of the
Penn State prototype metering
system with a series of calibrated
farm bulk tanks. Several
licensed milk weighers and
samplers independently deter
mine the gage rod volume of milk
in specific tanks. For com
parison, the volume is then
measured by the new metering
system.
Interest in an improved method
of measuring milk atthefarm has
existed for years among farmers
and milk buyers, as well as
weights and measures officials.
Like industry representatives,
Dr. Glass says that gage rods for
measuring milk will not become
P. L ROHRER Pt CBO., INC. i
I
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SMOKETOWN, PA.
obsolete for some time.
Manufacturers with a approved
prototype system will first need
to make the transition from
prototype to mass production.
In * addition, weights and
measures agencies will have to
become familiar with a new
series of test procedures , Dr.
Glass observed, and must pur
chase the necessaiy sanitary
proving equipment. Moreover,
the dimensions of the prototype
system, about 3 feet by 3 feet by
foot, will require some
modifications in most existing
tank pickup trucks.
Dr. Glass and associates also
plan to examine the potential for
stationary large capacity,
sanitary milk metering systems
with flow rates ranging from 150
to 250 gallons per minute. These
will be evaluated as an alter
native to the vehicle scale for
measuring over-the-road tank
truck shipments of milk.
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Phone Lane. 397-3539
Red Rose
ANIMAL FEEDS
PHONE; (215) 593-5149
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