ASTM D4780-12

Standard Test Method for Determination of Low Surface Area of Catalysts and Catalyst Carriers by Multipoint Krypton Adsorption

STANDARD published on 1.5.2012

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The information about the standard:

Designation standards: ASTM D4780-12
Note: WITHDRAWN
Publication date standards: 1.5.2012
SKU: NS-28538
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Chemical reagents

Annotation of standard text ASTM D4780-12 :

Keywords:

catalysts, catalyst carriers, krypton adsorption, ICS Number Code 71.040.30 (Chemical reagents)

Additional information

Significance and Use

This test method has been found useful for the determination of the specific surface area of catalysts and catalyst carriers in the range from 0.05 to 10 m²/g for materials specification, manufacturing control, and research and development in the evaluation of catalysts. The determination of surface area of catalysts and catalyst carriers above 10 m²/g is addressed in Test Method D3663.

1. Scope

1.1 This test method covers the determination of the specific surface area of catalysts and catalyst carriers in the range from 0.05 to 10 m²/g. A volumetric measuring system is used to obtain at least three data points which fall within the linear BET region.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

2. Referenced Documents

E177-20	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456-13a(2022)	Standard Terminology Relating to Quality and Statistics (Includes all amendments and changes 4/21/2022).
D3766-24a	Standard Terminology Relating to Catalysts and Catalysis (Includes all amendments and changes 3/6/2024).
D3663-20	Standard Test Method for Surface Area of Catalysts and Catalyst Carriers
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method