ASTM D409 PDF

ASTM D/DM: Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method. These standards are covered in ASTM D In the test procedure a given amount “0” to “60” and stop. Remove the coal sample and test as per ASTM D Description. Primary Hardgrove Grindability Index (HGI) Standards prepared in strict accordance with the most current version of. ASTM D , Standard Test.

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As the voice of the U. The values given in parentheses may be approximate. Already Subscribed to this document. A prepared and sized sample receives a definite amount of grinding energy in a miniature pulverizer, and the size consist of the pulverized product is determined by sieving. 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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The resultant size consist is used to produce an index relative to the ease of grinding [Hardgrove Grindability Index HGI ]. The resultant size consist is used to produce an index relative to the ease of grinding Hardgrove Grindability Index HGI.

Therefore, the repeatability and reproducibility cited in this test method may not apply for these high-volatile bituminous, subbituminous, and lignite coals. You need to log in before adding standards to the monitoring service. Subscription pricing is determined by: The values stated in aatm system may not be exact equivalents; therefore, each system shall be used independently of the other.

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We have no amendments or corrections for this standard. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. A prepared and sized sample receives a definite amount of grinding energy in a miniature pulverizer, and the size consist of the pulverized product is determined by sieving.

This standard is not included in any packages. 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. The resultant size consist is used to produce an index relative to the ease of grinding [Hardgrove Grindability Index HGI ].

Please first log in with a verified email before subscribing to astmm. Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work.

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. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

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Work Item s – proposed revisions of this standard. Please first verify your email before subscribing to alerts. A prepared and sized sample receives a definite amount of grinding energy in a miniature pulverizer, and the size consist of the pulverized product is determined by sieving.

ASTM D/DM – Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method

Combining values from the two systems may result in non-conformance with the standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently qstm the other.

You may delete a document from your Alert Profile at any time. Therefore, the repeatability and reproducibility cited in this test method may not apply for these high-volatile bituminous, subbituminous, and lignite coals.

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Work Item s – proposed revisions of this standard.

ASTM D409/D409M:11ae1

This change is often sufficient to alter the grindability characteristics that will be reported when tested in the laboratory and could produce different indices dependent on the conditions of drying and the moisture level zstm the 1. Need more than one copy?

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