() ASTM D Standard Test Method for Particle-Size Analysis of Soils. West Conshohocken, PA. This test method covers the quantitative determination of the distribution of particle sizes in soils. The distribution of particle sizes larger than 75 micrometers . American Society for Testing and Materials ASTM. Current edition approved Oct. 15, Published October 8 р. This test method.
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As soon as the reading is taken, carefully remove the hydrometer and place it with a spinning motion in a graduate of clean distilled or demineralized water.
Bottles containing astm d 63 should have the date of preparation marked on them. The PDF Download is licensed per individual in which the individual can place on up to four electronic devices for their personal use.
Dimensions of both hydrometers are the same, the scale being the only item of difference. Values of K for a range of temperatures and speci? Users of this standard are expressly advised that determination of the validity of any such patent asfm, and the risk of infringement of such rights, are entirely their own responsibility.
ASTM D 422—63 (2007) Test Method for Particle-size Analysis of Soils (PDF Download)
The distribution of particle sizes larger than 75? Stir until the soil is thoroughly wetted. Measurement of the composite corrections may be made at two temperatures spanning the range of expected test temperatures, and corrections for x intermediate temperatures calculated assuming a straight-line relationship between the two observed values.
For both hydrometers, H and H: S balances, stirring apparatus, hydrometer, astm d 63 cylinder, thermometer, sieves, water bath or constant-temperature room, beaker, and timing device used in the method are specified. NOTE 11—The number of turns during this minute should be approximately 60, counting the turn upside down and back as two turns.
For a volume license the PDF is licensed to the person in which it is assigned. This water must be removed, either by using a water trap on the air line, or by blowing the water out of the line before using any of the air satm d 63 dispersion purposes.
A special dispersion cup conforming to either of the designs shown in Fig.
ASTM D 422 – 63 (Reapproved 2007) Standard Test Method for Particle-Size Analysis of Soils
Current edition approved Oct. This set consists of the following sieves: Any soil remaining in the bottom of the cylinder during the?
Open the control valve so that the gage indicates 1 psi 7 kPa pressure Note This water must be removed, either by using a water trap on the air line, or by blowing the water out of the line before using any of the air for dispersion purposes. When it is used, soaking of the sample can be done in the sedimentation cylinder, thus eliminating the need for transferring the slurry.
Plasticity Index Under 5 6 to 20 Over 20 Dispersion Period, min 5 10 15 Soils containing large percentages of mica need be dispersed for only 1 min.
ASTM D – 63()e2 Standard Test Method for Particle-Size Analysis of Soils (Withdrawn )
This option is mobile friendly and compatible with all devices, including mobile tablets and smart phones. Readings shall be taken at the top of the meniscus formed by the suspension around the stem, since it is not possible to secure readings at the bottom of the meniscus. The water for a hydrometer test shall be brought to the temperature that is expected to prevail during the hydrometer test.
NOTE 9—A large size syringe is a convenient device for handling the water in the washing operation. D — 63 Metric Equivalents in. NOTE 4—Another air-type dispersion device, known as a dispersion tube, developed by Chu and Davidson at Iowa State College, has been shown to give results equivalent to those secured by the air-jet dispersion cups. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
To obtain the mass passing the No. The value of K does not change for a series of readings constituting a test, while values of L and C do vary. Diameter of Soil Particles NOTE 5—Water may condense in air lines when not in use. The results from the two types aetm devices differ in magnitude, depending upon soil type, leading to marked differences in particle size distribution, especially for sizes?
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