Megar Current edition approved June 1, Need more than one copy? In contrast to surface tension values, interfacial tension values cannot adequately be corrected for small temperature deviations by means of a simple formula. Review them for hazards prior to usage. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not v as part of the standard. Measures both upward and downward forces. In most cases an accuracy of 65 s is reasonable, and sufficient for this test method.
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Yogul Fire Test Methods — irp-cdn. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. The precision tensiometer shall be asm in accordance with the zstm It is the recommended method for use with paints and resin solutions.
Standards Subsctiption may be the perfect solution. Add to Alert PDF. Current edition approved June 1, Please first verify your email before subscribing to alerts. You may delete a document from your Alert Profile at any time.
Calculation and Report 9. What are your specifications? We have no document history for this standard. If the recorded dial reading gamma-c is greater than the calculated value, the torsion arm should be shortened. Next, place an accurately standardized weight of between and mg on the paper platform and turn ast, dial-adjusting screw until the index level of the arm is opposite the reference line of the mirror. ASTM D standard test method for interfacial tension of With liquids heavier than water, where the ring must be pushed downward, the interfacial tensiometer should be used.
More than one solute component may be present, including solute components that are not in themselves surface-active. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market asm and trade, and build consumer confidence.
Review them for hazards prior to usage. Xstm is done simply by dividing the scale reading into the weight used for calibration Note 3. F is a function of the contours of the liquid surface in the neighborhood of the ring at the instant of breakaway. This value is used in the calculation of the conversion factor, F, mentioned in 5. The use of fresh chromic-sulfuric acid cleaning mixture, followed by a thorough rinsing in distilled water, is 1d Calculation and Report 7. Material Safety Data Sheets are available for reagents and materials.
Already Subscribed to this adtm. Petroleum Products and Biofuel lab apparatus baths, astk, color measurement, density meters, flash point, hydrogenators, oil testing, penetrometers, surface tension, vapor pressure, viscometers and rheometers, In contrast to surface tension values, interfacial tension values cannot adequately be corrected for small temperature deviations by means of a simple formula. Please first log in with astmm verified email before subscribing to alerts.
For liquids of low surface tension, such as surfaceactive agents, F is, in general, appreciably less than unity. Last previous edition approved in as D — 89 which was withdrawn January and reinstated in June Enter product namemake or model.
Pull the torsion wire taut by means of the tension screw, and adjust the dial reading and the vernier to zero. Four methods are covered as follows:. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Proceed to Checkout Continue Shopping. Also report the temperature at which the determination was made. Click here to download full list of books. If you like to setup a quick demo, let us know at support madcad. Fiberon Decking — Progressive Engineering Inc? Are you sure you want to empty the cart?
As the breaking point is approached, the adjustments must be made more carefully and more slowly. Calibration of Apparatus 5. Values for F have been published by Zuidema and Waters. It is the recommended method for use with paints and v solutions.
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