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 Status: Withdrawn · Replaced by: ASTM D Buy this standard.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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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.
Discard the fractions above the larger and below the smaller nominal particle size. Summary of Test Method 4. Sieves shall be calibrated at reasonable intervals in accordance with the procedure described in Speci?
Adjust the bottom stops to give a clearance of approximately 1. Weigh to the nearest 0. Apparatus and Materials 6.
ASTM D – 10 Standard Test Method for Ball-Pan Hardness of Activated Carbon
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, which you may attend. Use additional material obtained as in 9. The adhesion of material to sieves, brushes, etc.
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Tyler Model SB, available asstm W. 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? This standard is subject to revision at any time by axtm responsible technical committee and must be reviewed every?
Standard Test Method for Ball-Pan Hardness of Activated Carbon
Shake with the hammer operating for 10 min 6 10 s. Precision and Bias At the end of this period, the amount of particle size degradation is determined by measuring 3d802 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? 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.
Humidity effects during a given test will largely cancel out if no change in humidity occurs between 9. A number in parentheses indicates the year of last reapproval.
ASTM D – 16 – Standard Test Method for Ball-Pan Hardness of Activated Carbon
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. 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. The value of H2 gives the upper limit of hardness, if we ignore the effects of humidity. Fit the atsm plate with a cork stopper which extends from 3.
ASTM D3802 – 16
Place the hardness test sieve on top of the receiving pan. 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.
Obtain at least mL of material within the nominal mesh size range. One supplier tested 31 samples of a single grade of carbon and obtained an average hardness of Current edition approved June 29, BoxGastonia, NChas been found to be satisfactory.
Conceding the fact that the test does not actually measure in-service resistance to degradation, it can be used to establish the comparability d382 lots ostensibly of the same grade of carbon. A superscript epsilon e indicates an editorial change since the last revision or reapproval.