CSC Scientific DuNouy Precision and Interfacial Tensiometers. Provides rapid surface tension measurements—15 to 30 secinds. $7, – $8, The force maximum is determined with a modern tensiometer (K, K20) with the help of an With the Du Noüy ring method, a correction must be made to the . The CSC-Dunouy Tensiometer is a precision instrument used for measuring both The CSC-Dunouy Tensiometers (Fig.1 and 2) use a fine torsion wire for.

Author: Kem Salabar
Country: Bosnia & Herzegovina
Language: English (Spanish)
Genre: Literature
Published (Last): 27 June 2014
Pages: 486
PDF File Size: 9.68 Mb
ePub File Size: 20.94 Mb
ISBN: 637-4-51898-273-7
Downloads: 30051
Price: Free* [*Free Regsitration Required]
Uploader: Shall

There are applications where the surface tension at the boundary of two liquids needs to be measured.

Platinum ring perimeter length. Teneiometer measure the surface tension between a liquid and the air, the Tensiometer duNouy ring is placed below the surface of the liquid.

The force required to raise the ring from nouh liquid’s surface is measured and related to the liquid’s surface tension. Earlier, torsion wire balances were commonly used.

Du Noüy ring method – Wikipedia

The most common correction factors include those by Zuidema and Waters for liquids with low interfacial tensionHuh and Mason which covers a wider range than Zuidema-Watersand Harkins and Jordan more precise than Huh-Mason while still covering the most widely used liquids. Commons category link is on Wikidata. The tensiomefer involves slowly lifting a ring, often made of platinum, from the surface of a liquid.


From Wikipedia, the free encyclopedia. This page was last edited on 3 Octoberat Retrieved from ” https: The Tensiometer for this test needs to pull the ring up through the boundary between the lower, higher density liquid, and the liquid that is floating above. Tenslometer force needed to break the boundary going from the floating liquid to the greater density liquid is measured by pushing rensiometer ring down through the boundary.

English software For TEN The Journal of General Physiology. Rockwell hardness tester Brinell hardness tester Vickers hardness tester Universal hardness tester Micro vickers hardness tester Hardness block.

TEN Du Nouy Tensiometer, Ring method – Tensiometer / Goniometer – United Test

The measurement is performed with a force tensiometerwhich typically uses an electrobalance to measure the excess force caused by the liquid being pulled up and automatically calculates and displays the surface tension corresponding to the force. Your browser does not support the video tag. The force needed for the ring to break the surface overcome the surface tension is determined. This is called interfacial surface tension.


Fundamentals of Interface and Colloid Science: Copyright Beijing United Test Co. Du Nouy ring method: In other projects Wikimedia Commons.

How can we help you? Views Read Edit View history. The force needed to break tensiomteer the surface of the higher density liquid is recorded as interfacial surface tension. Measuring instruments Laboratory equipment. Documents Manual, packing list, certificate.

Du Noüy ring method

The maximum force is used for the calculations, and empirically determined correction factors are required to remove the effect caused by tnesiometer finite diameter tenssiometer the ring:. By using this site, you agree to the Terms of Use and Privacy Policy. Item Quantity Frame 1 set Platinum ring R9. Surface Tensiometer Du nouy ring tensiometer. The method involves slowly lifting a ring, often made of platinum, from the surface of a liquid.

This test is performed by pulling the ring upward through the surface of the liquid.

Author: admin