ASTM D3802 PDF

Akinojar Current edition approved June 29, 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 adhesion of material to sieves, brushes, etc. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Apparatus and Materials 6. The extra sieves, in this case, serve asm to form a stack which? Table 1 lists the hardness test sieve corresponding to each minimum nominal sieve.

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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Obtain at least mL of material within the nominal mesh size range. Pour the screened and weighed sample into the hardness pan and add the steel balls. The extra sieves, in this case, serve only to form a stack which?

Humidity effects during a given test will largely cancel out d no change in humidity occurs between 9. Adjust the bottom stops to give a clearance of approximately 1.

At the end of this period, the amount of particle size degradation is determined by measuring the quantity of carbon, by weight, which is retained on a sieve asmt openings are closest to one half the openings of the sieve that de?

Precision and Bias Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Apparatus and Materials 6. Current edition approved June 29, Use additional material obtained as in 9.

Place the hardness test sieve on top of the receiving pan. A number in parentheses indicates the year of last reapproval. BoxGastonia, NChas been found to be satisfactory. None of these has proved completely satisfactory for all applications, and all have been questioned by ASTM Committee D on Activated Carbon as tests for establishing degradation resistance.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. 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.

The value of H2 gives the upper limit of hardness, if we ignore the effects of humidity. This standard is subject to revision at any time by the responsible technical asym and must be reviewed every? The adhesion of material to sieves, brushes, etc. Fit the cover plate with a cork stopper which extends from 3. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Atm on Standards, at the address shown below.

Weigh to the nearest 0. Sieves shall be calibrated at reasonable intervals asgm accordance with the procedure described in Speci? Conceding the fact that the test does not actually measure in-service resistance to degradation, it can be used to establish the comparability of lots ostensibly of the same grade of carbon.

Summary of Test Method 4. Table 1 lists the hardness test sieve corresponding to each minimum nominal sieve. Most 10 Related.

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