ASTM D4641-12
ASTM D4699-03(2013)..
ASTM D4780-12
ASTM D4781-03(2013)..
ASTM D4926-06(2011)..
ASTM D4937-96(2012)..
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ASTM D4824-13
Standard Test Method for Determination of Catalyst Acidity by Ammonia Chemisorption
STANDARD published on 1.4.2013
The information about the standard:
Designation standards: ASTM D4824-13
Note: WITHDRAWN
Publication date standards: 1.4.2013
SKU: NS-28778
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM D4824-13 :
Keywords:
catalysts, nitrogen adsorption, pore size distribution, ICS Number Code 71.040.30 (Chemical reagents)
Additional information
| Significance and Use | ||||
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5.1 This test method can be used to determine the acidity of catalysts and catalyst carriers by ammonia chemisorption for materials specifications, manufacturing control, and research and development in the evaluation of catalysts. |
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| 1. Scope | ||||
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1.1 This test method covers the determination of acidity of catalysts and catalyst carriers by ammonia chemisorption. A volumetric measuring system is used to obtain the amount of chemisorbed ammonia. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. |
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| 2. Referenced Documents | ||||
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