ASTM D Standard Test Method for Ball-Pan Hardness of Activated Carbon. Standard Test Method for Ball-Pan Hardness of Activated Carbon. Status: Withdrawn · Replaced by: ASTM D Buy this standard. Price: SEK. PDF. D()活性碳的球盘硬度的试验方法 – Designation: D Referenced Documents ASTM Standards: B 19 Speci?cation for.

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Weigh to the nearest 0. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Shake with the hammer operating for 10 min 6 10 s. Pour the screened and weighed sample into the hardness pan and add the steel balls.

Current edition approved June 29, Table 1 lists the hardness test sieve corresponding to each minimum nominal sieve. Your comments will receive careful consideration at a meeting of the responsible technical committee, d38802 you may attend. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?


Precision and Bias One supplier tested 31 samples of a single grade of carbon and obtained an average hardness of Summary of Test Method 4. 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.


Conceding the fact that the test does not actually measure in-service asgm to degradation, it can be used to establish the comparability of lots ostensibly of the same grade of carbon. 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 whose openings are closest to one half the openings of the sieve that de?

The adhesion of material to sieves, brushes, etc. Adjust the atsm stops to give a clearance of approximately 1. 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.

Apparatus and Materials 6. Discard the fractions above the larger and below the smaller nominal particle size.

Standard Test Method for Ball-Pan Hardness of Activated Carbon

Use additional material obtained as in 9. 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. Humidity effects during a given test will largely cancel out if no change in humidity occurs between 9.


Your comments are wstm either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.


ASTM D – 16 – Standard Test Method for Ball-Pan Hardness of Activated Carbon

Fit the cover plate with a cork stopper which extends from 3. 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. The extra sieves, in this case, serve only to form a stack which? Place the hardness test sieve on top of the receiving pan. A number in parentheses indicates the year of last reapproval.

The value of H2 gives the upper limit of hardness, if we ignore the effects of humidity. Obtain at least mL of material within the nominal mesh size range. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Tyler Model D33802, available from W. BoxGastonia, NChas been found to be satisfactory.

Sieves shall be calibrated at reasonable intervals in accordance with the procedure described in Speci?

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