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Fisher Scientific Tensiomat 21 Surface Tension Tensiometer
Condition: Demo
Brand new item from stock or on order from manufacturer
1 YEAR MANUFACTURER'S WARRANTY (6 MONTHS ON MOTOR)
Stock #:
N2017
Dimensions (approx.):
10.5"W x 9"D x 11.5"H
(outside)
Electrical:
115 Volts,
Product Description
The Fisher 21 tensiometer is a semi-automatic model. Direct results, no calculations. Semiautomatic Tensiomat performs ASTM D 971-99a (oil-water interfacial tension procedures) and D 1331-89 (methods for measuring surface and interfacial tension of detergents). Employs du Nouy ring method for direct results with no calculations. Accuracy equals data from capillary-height or drop-weight measurements to within +/-0.25%. Measures force necessary to separate platinum-iridium ring from liquid, read directly to ±0.25 dynes/cm. For comparative studies, data is easily convertible to absolute values using graph in supplied instructions. Reproducible semi-automatic operation. Reversible, synchronous motor raises and lowers test ring and sample table. Two-way switch selects travel direction for ring and pilot light. Provides movement at a uniform rate, eliminating premature ring breakaway from liquid and preventing false tension readings. Error from manual adjustment of sample level can be avoided by first running test with motor off to determine sample position when ring breaks free, then allowing table to remain fixed at that position for actual tests.
Includes certificate of calibration, torsion wire and ring
Made in USA.
This item ships from Priest River, ID.
Related Products:
Cenco Dunuoy 70535000 Surface Tension Tensiometer
Cenco Dunuoy 70545000 Surface Tension Tensiometer
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Related Products:
Cenco Dunuoy 70535000 Surface Tension Tensiometer
Cenco Dunuoy 70545000 Surface Tension Tensiometer
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