ASTM-D4567 2008

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D4567-03(2008) Standard Test Method for Single-Point Determination of Specific Surface Area of Catalysts and Catalyst Carriers Using Nitrogen Adsorption by Continuous Flow Method

Published By	Publication Date	Number of Pages
ASTM	2008	4

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Categories: 71.040.30 - Chemical reagents, ASTM

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Description

1.1 This 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 m ² , where rapid surface area determinations are desired.

1.2 Because the single-point method uses an approximation of the BET equation, the multipoint BET method (Test Method D 3663 ) is preferred to the single-point method.

Note 1This is particularly true when testing microporous materials.

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

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Apparatus Reagents Calibration of the Apparatus FIG. 1
3	Preparation of Sample Surface Area Determination Calculations Presentation of Data Precision and Bias TABLE 1
4	Keywords

Additional information

Standard Title	D4567-03(2008) Standard Test Method for Single-Point Determination of Specific Surface Area of Catalysts and Catalyst Carriers Using Nitrogen Adsorption by Continuous Flow Method
Published Code	ASTM
Publication Date	2008
Pages Count	4
ICS Codes	71.040.30 - Chemical reagents

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ASTM-D4567 2008

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