ASTM D 4567 : 2003 : R2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Single-Point Determination of Specific Surface Area of Catalysts and Catalyst Carriers Using Nitrogen Adsorption by Continuous Flow Method
Hardcopy , PDF
09-09-2020
English
01-04-2013
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 05.05, 2015 Describes the single-point determination of the surface area of catalysts and catalyst carriers that exhibit Type 2 or Type 4 nitrogen adsorption isotherms using a nitrogen-helium flowing gas mixture.
| Committee |
D 32
|
| DocumentType |
Test Method
|
| Pages |
4
|
| ProductNote |
Reconfirmed 2013
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This test method covers the single-point determination of the surface area of catalysts and catalyst carriers that exhibit Type II or Type IV nitrogen adsorption isotherms using a nitrogen-helium flowing gas mixture. This test method is applicable for the determination of total surface areas from 0.1 to 300 m2, where rapid surface area determinations are desired.
1.2Because the single-point method uses an approximation of the BET equation, the multipoint BET method (Test Method D3663) is preferred to the single-point method.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
| ASTM E 177 : 2014 : REDLINE | Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods |
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