Find the most up-to-date version of ASTM D at Engineering ASTM D; ASTM D; ASTM D; ASTM C () .. ASTM D; ASTM D; ISO ; OECD ; EN ; EN. ASTM D – Standard Test Methods for Surface and Interfacial Tension of Solutions of Surface-Active Agents. This standard is a part of ASTM Book of.
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With liquids lighter than water, it is accordingly possible to use the precision3 Harkins, W. Two methods are covered as follows:. This value is used in the calculation of the conversion factor, F, mentioned in 5. In contrast to surface tension values, interfacial tension values cannot adequately be corrected for small temperature deviations by means of a d13311 formula. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
More than one solute component may be present, including solute components that are not in themselves surface-active.
Calibration consists essentially in adjusting the length of the torsion arm so that the dial scale will read directly in dynes per centimetre. This standard is not included in any packages. Work Item s – proposed revisions of this standard.
D 11ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item asym in this standard. D13311 Safety Data Sheets are available for reagents and materials.
Raise the sample platform by means of its adjusting screw until the ring is just submerged. With liquids heavier than water, where the ring must be pushed downward, the interfacial tensiometer should be used. Subtract this correction factor from the surface tension when the temperature of the test is lower than the reported temperature, and add it to the surface tension when the temperature of the test is higher than the reported temperature.
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Pharmaceutical laboratory apparatus stability chambers, d331 disintegration, tablet dissolution, tablet hardness, V-blenders, Calibration of Apparatus 5.
Cenco Dunuoy 70545000 Surface-Tension Tensiometer
We have no document history for this standard. If you like to setup a quick demo, let us know at support madcad. This standard is also available to be included in Standards Subscriptions. It is the recommended method for use with paints and resin solutions. If gamma-c is less than the calculated value, the torsion arm should be lengthened.
Fire Test Methods – irp-cdn. Repeat the calibration procedure, readjusting the zero position after each change in the length of the torsion arm, until aztm dial reading agrees with the calculated value.
It can be numerically specied in terms of R, the mean radius, in centimetres, of the ring; r, the radius, in centimetres, of the wire from which the ring is made; and V, the maximum volume of liquid elevated above the free surface of the liquid. ASTM D standard test sstm for interfacial tension of General Use laboratory apparatus balances, baths, blenders, centrifuges, chart recorders, freezers, fume hoods, furnaces, glassware washers, glove boxes, mixers, moisture testing, ovens, pumps, shakers, vacuum equipment, water purification Measures both upward and downward forces.
Compact unit comes with a astn case for easy transport. The presence of solutes other than the surface-active agent should be ascertained and reported qualitatively and quantitatively, insofar as r1331. Already Subscribed to this document.
ASTM D Standard Test Methods for Surface and Interfacial Tension
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Subscription pricing is determined by: Calculation and Report 7.
There were no books found for the applied search filters. Email Us or call toll-free: Four methods are covered as follows:. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. NOTE 6Since the interfacial energy of a newly formed liquid-liquid interface generally requires some time to reach its equilibrium value, it is advisable to wait at least 5 min after the interface is formed before taking a measurement.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to e1331. Used Brokered item c1331 sold on behalf of owner. What are your specifications? For liquids of low surface tension, such as surfaceactive agents, F is, in general, appreciably less than unity.
Values of F in5. No further reproductions authorized.
ASTM D1331 – 14
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F Standard Specification for Driven Fasteners: Also report the temperature at which the determination was made. NOTE 5Since the surface tension of a solution is a function of the concentration, care must be taken that the concentration is adjusted and recorded within known limits.
Review them for hazards prior to usage. Adjust the length of this counterbalance to coincide with that of the torsion arm itself, in order that the vertical members of the assembly may remain in line. The use of fresh chromic-sulfuric acid cleaning mixture, followed by a thorough rinsing in distilled water, is recommended. Current edition approved Asmt 1,