Needle Syringe Test on a Universal Testing Machine by ADMET
Many different types of testing profiles can be used to test a syringe. There
are ASTM and ISO standards, for example, ISO7864 and ISO9626, as well as individual
company specified testing profiles. You may want to discover how much force
it takes the press the plunger with and without liquid, or you may want to determine
how easy or difficult the luer lock is to remove or to connect, or you may want
to examine the pressure of the liquid when forced out of the syringe at a high
speed, and more.
In this example, we filled a syringe with a needle hub attached by luer lock
with water. We compressed the plunger through its 1.75 inches of travel. We
were interested in measuring the average force required to push the fluid through
syringe. To obtain an accurate load average measurement, we needed to ignore
the "noise" at the beginning and end of the stroke. We programmed
our machine to average the load between 0.5 - 1.5 inches of displacement. This
syringe test was performed on an ADMET
eXpert 7601, Single Column, 1kN testing system equipped with an eP Digital Controller
and a syringe testing fixture. This test gave us information on the force required
to compress the plunger to a certain position.
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Run time: 1.27 mins