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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It is the recommended method for use with paints and resin solutions. Calibration of Apparatus 5. This instrument has, however, in addition to the torsion arm, a torsion-arm counterbalance.
Ring method allows readings to be made in seconds.
ASTM D1331-11 Standard Test Methods for Surface and Interfacial Tension
Copyright Compu-tecture, Inc. D131 than one solute component may be present, including solute components that are not in themselves surface-active. The wire of the ring shall be in one plane, free of bends or irregularities, and circular. To calculate M, multiply the tensiometer dial reading by the factor which converts this reading into grams pull on the ring, as calculated in 5.
Review them for hazards prior to usage. Work Item s – proposed revisions of this standard. Last previous edition approved in as D – 89 which was withdrawn January and axtm in June Register for a trial account.
The presence of solutes other than the surface-active agent should be ascertained and reported qualitatively and quantitatively, insofar as d13311. D 11ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Land Use and Development. Cenco Dunuoy Surface-Tension Tensiometer. Used Brokered item being sold on behalf of owner. Material Safety Data Sheets are available for reagents and materials. When set in the instrument, the plane of the ring shall be horizontal, that is, parallel to the surface plane of the liquid being tested. Fire Test Methods – irp-cdn. As the voice of the U. Lab Equipment for Sale: Make the measurement by turning the torsion wire counter-clockwise and simultaneously keeping the ring system in the zero position, as in the measurement of surface tension, until the ring breaks through the interface.
ASTM D standard test method for interfacial tension of Two methods are covered as follows: Values of F in5. A number in parentheses indicates the year of last reapproval.
Pharmaceutical laboratory apparatus stability chambers, d11331 disintegration, tablet dissolution, tablet hardness, V-blenders, Report also the temperature at which the measurement was made.
Enter your personal account email address to request a password reset: Values for F have been published by Zuidema and Waters.
Today, some 12, ASTM standards are used around the astk to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. Type text as it appears:: After allowing sufficient time aztm the interfacial tension to come to its equilibrium value Note 6make the measurement in the same manner as that used for measuring surface tension.
Enter product namemake or model. Enter your account email address to request a password reset: Values for R and r are furnished by the manufacturer ast, each ring. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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Preparation of Apparatus 4. Contact between the oil and the ring should be avoided during this operation. F is a function of the contours of the liquid surface in the neighborhood of the ring at the instant of breakaway.
Link to Active This link will always route to the current Active version of the standard. Review them for hazards astk to usage. 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.
Looking for a specific close-up? Repeat the calibration procedure, readjusting the zero position after each change in the length of the torsion arm, until the dial reading agrees with the calculated value. Material Safety Data Sheets are available for reagents and materials. Pull the torsion wire taut by means of the tension screw, and adjust the dial reading and the vernier to zero. Note that a conversion factor, F see 5. With liquids heavier than water, where the ring must be pushed downward, the interfacial tensiometer should be used.
Four methods are covered as follows:.