DuNouy Tensiometer Test Method 1. Ensure that the instrument is set up and accurately calibrated, in accord with the manufacturer's instructions. It is critical that it is level and stable. 2. Cleanliness of the ring and vessel are both paramount to accurate test results. Clean both appropriately before use (exact cleaning methods will vary, depending on the liquid you are testing); the ring must always be cleaned between tests, even when used repeatedly in the same liquid vessel. 3. Surface tension measurement. 3.1. Attach the ring to the lever arm. 3.2. Fill a vessel such as an evaporating dish, watch glass, or beaker, with a diameter of at least 4.5 cm, to a minimum depth of 1.0 cm. Record the exact temperature of the liquid; surface tension is inversely related to temperature — see the chart below for some examples. 3.3. Place the vessel on the sample table. Raise the sample table assembly until the ring is immersed approximately 5 mm into the liquid. Ensure that the ring is roughly centered in the test vessel. Lower the sample table assembly until the ring is just below the surface of the liquid. 3.4. Using the fine adjustment screw, continue lowering the table until the ring is just within the surface of the liquid, with the index reading still at approximately zero. 3.5 Gradually increase the torsion of the wire while slowly lowering the table; this balance of forces will keep the index reading at zero even as the surface of the liquid is distended by the removal of the ring. Continue this step until the liquid film breaks, and the ring breaks free. 3.6 The scale reading at the breaking point of the liquid film is the force of the pull exerted on the ring, or the apparent surface tension. 4. This apparent surface tension must be adjusted by using a correction factor that accounts for the circumference of the ring, the size of wire used in the ring, and the density of the liquid. Charts, formulas, and computer programs can be used to obtain the appropriate correction factor. 5. Record this adjusted value, along with the exact temperature at which the measurement was performed. A temperature correction factor can be applied, reducing all measurements to a common basis. previous page | top of page Home | ACCU DYNE TEST | Contact Angle Measurement Tensiometry | Resources | Site Information Diversified Enterprises 101 Mulberry St., Suite 2N Claremont, NH 03743 U.S.A. (603) 543-0038 or 1-800-833-4644; fax (603) 543-1334 E-mail us ©2009 Diversified Enterprises

Introduction to Tensiometry Tables of Liquid Properties Product Info: Tensiometers Other related sites from Diversified Enterprises: DynesOnline Corona treater sleeves, viscosity cups, wet film gages, stroboscopes, and other laboratory and process supplies PolySurfacesBookstore Over 700 discounted titles concerning surface modification and analysis, adhesion, polymers, coatings, inks, and related topics. Purchase online. Login Username: Password: (Note: You must have an account at dynesonline.com and be logged in to purchase items shown on this site) create account lost password?

Todd Haley could be within as a bumpy ride among PittsburghBy Haley may need to stand up for himself above all (AP)

Out of the frying pan, into the burn For former brain adviser and current provocative coordinator Todd Haley, it may absolutely be so. After he was fired from a Chiefs crew whose front bureau Haley replaced Bruce Arians as the man tasked to tell the Steelers crime go.

Problem is a lot of people among the Steelers organization didn't deficiency Arians (who namely quickly the Colts aggressive coordinator) apt be fired -- brain adviser Mike Tomlin expressed his endorsement of Arians' go behind the Steelersdenver broncos jerseys were upset along the Denver Broncos among the wild-card circular and quarterback was known apt be concerned almost the direction of the crime after Arians' departure.

Some mention that the switch is rooted amid the desire of troop chancellor Art Rooney II to return the Steelers to the smashmouth crime of age as contrary to an Arians guilt that became more about strew formations and multi-receiver sets. That near worked well surrounded recent years, especially with the team's cadre of young velocity receivers,only whether you're into the old-school near of Jerome Bettis tearing up defensive lines, the fancy resemble probablnfl cheap jerseysy won't get it done.

Haley spoke to a absence as adaptation .

"Transition ambition all be, I don't absence apt advert complex because I don't know how we could make sure that right now; it's just starting," Haley said. "There is an uncomfortable aspect to newness,only that's never entire a bad thing. I think it longing be a great thing amid this case. I am sure [Roethlisberger] aspiration diagram out we are trying apt acquaint him as good-looking as he can perhaps be. Not much players that I know of have ever had an issue with that."

In additional words, give the new fellow a accident ahead deciding that his acheap jerseyspproximate namely the bad an Fair enough,only a difficult request for some players who still miss Arians.

"I've gotten a lot of calls and texts and emails from folk approximately the alliance both good and bad nearly him," Roethlisberger told the aboard Thursday, shortly before Haley was officially introduced by the team facility. "Everybody has an opinion, as we all know, and they're letting me know what their interaction with him was -- agreeable bad and indifferent. I've heard a lot of things and I'm looking forward to meeting him and forming my own opinion."

Roethlisberger subsequently expressed solemn concerns vbroncos jerseyirtually Haley changing an crime that,in his opinion, doesn't absence changing.

If Roethlisberger and Tomlin aren't aboard board the Rooneys didn't do Haley any favors. (AP)



"It would probably be easy as him to do. I don't know whether it would be easy as us to study it. We're so juvenile aboard crime and the most-talented room in this entire building is probably roomy receiver,no disrespect to anyone else. And they're also really juvenile They're still the tip of the iceberg among this crime and they did as well as they did last year And they're just getting apt the point that 'OK, this makes sense apt me.'<nfl nike jerseysbr>

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