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Description of ASTM-D4567 2013ASTM D4567 - 03(2013)Standard Test Method for Single-Point Determination of Specific Surface Area of Catalysts and Catalyst Carriers Using Nitrogen Adsorption by Continuous Flow MethodActive Standard ASTM D4567 | Developed by Subcommittee: D32.01 Book of Standards Volume: 05.05 ASTM D4567Significance and Use 5.1 This test method is useful for determining the specific surface area of catalysts and catalyst carriers for material specifications, manufacturing control, and research and development in the evaluation of catalysts. 1. Scope 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 D3663 ) is preferred to the single-point method.
Note 1 This 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.
ASTM Standards D3663 Test Method for Surface Area of Catalysts and Catalyst Carriers D3766 Terminology Relating to Catalysts and Catalysis E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods E456 Terminology Relating to Quality and Statistics E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method Keywords adsorption; catalyst carriers; catalysts; continuous flow; surface area; ICS Code ICS Number Code 71.040.30 (Chemical reagents) DOI: 10.1520/D4567 ASTM International is a member of CrossRef. ASTM D4567This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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