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Consistometer - Let it flow!
The Consistometer is a low cost, durable, instrument for accurately checking laboratory or production samples against consistency, viscosity or flow rate standards
This instrument is used to determine the consistency of viscous materials by measuring the distance that the material flows under its own weight in a given time interval. The instrument allows producers of such viscous products as jellies, preserves, sauces, etc to predetermine formulas for their product and to standardize production lots.
It uses little bench space yet is probably the simplest, most accurate method of conducting a variety of flow associated tests. It is already widely used in the chemical, paint, cosmetic and food processing industries. It provides a single parameter for a variety of flow tests which can be carried out over any period under as near identical
conditions as possible.
The Consistometer or Bostwick Consistometer is manufactured from stainless steel engraved with a series of precise graduations at 0.5 cm intervals.
To ensure accurate reproducibility the instrument is levelled using the adjustment screws and spirit level.
METHOD OF USE
- A measured sample, usually 75 ml, is placed in the reservoir behind the gate.
- The gate is released, by pressing the lock release lever - the spring action ensures it opens instantaneously.
- As the fluid flows down the instrument its progress can be accurately measured using the graduated scale. By comparing the flow rate to specified time periods the physical properties of the sample can be calculated.