Customer Support: 131 242

  • There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

ASTM D 409/D409M : 2016

Current

Current

The latest, up-to-date edition.

Standard Test Method for Grindability of Coal by the Hardgrove-Machine Method

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-09-2016

1.1 This test method2 covers the determination of the relative grindability or ease of pulverization of coals in comparison with coals chosen as standards.

1.1This test method2 covers the determination of the relative grindability or ease of pulverization of coals in comparison with coals chosen as 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. The resultant size consist is used to produce an index relative to the ease of grinding [Hardgrove Grindability Index (HGI)].

1.1.1Some coals, such as some high-volatile bituminous, subbituminous, and lignite coals, can undergo physical change as the natural or seam moisture is released during handling and preparation. 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 of the 1.18 × 0.60 mm (No. 16 × 30) (see Test Method D4749) materials used for the test. Therefore, the repeatability and reproducibility cited in this test method may not apply for these high-volatile bituminous, subbituminous, and lignite coals.

1.2The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3This 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.

Committee
D 05
DocumentType
Test Method
Pages
15
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 7430 : 2010 Standard Practice for Mechanical Sampling of Coal
ASTM E 11 : 2020 Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM D 7430 : 2012 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 6708 : 2018 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6708 : 2015 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6708 : 2013 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 7430 : 2012 : REV B Standard Practice for Mechanical Sampling of Coal
ASTM D 6883 : 2003 : REV A Standard Practice for Manual Sampling of Stationary Coal from Railroad Cars, Barges, Trucks, or Stockpiles
ASTM D 6708 : 2007 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 3302 : 2007 : EDT 1 Standard Test Method for Total Moisture in Coal
ASTM D 6609 : 2017 Standard Guide for Part-Stream Sampling of Coal
ASTM D 6708 : 2016 : REV B Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6883 : 2017 Standard Practice for Manual Sampling of Stationary Coal from Railroad Cars, Barges, Trucks, or Stockpiles
ASTM D 2013 : 2000 : REV A : EDT 1 Standard Practice of Preparing Coal Samples for Analysis
ASTM D 6708 : 2006 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 3302 : 2002 : REV A Standard Test Method for Total Moisture in Coal
ASTM D 7430 : 2009 Standard Practice for Mechanical Sampling of Coal
ASTM D 3302 : 2002 Standard Test Method for Total Moisture in Coal
ASTM D 2013 : 2000 : REV A Standard Practice of Preparing Coal Samples for Analysis
ASTM D 6883 : 2003 Standard Practice for Manual Sampling of Stationary Coal from Railroad Cars, Barges, Trucks, or Stockpiles
ASTM D 7430 : 2016 Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2013 Standard Practice for Mechanical Sampling of Coal
ASTM D 3302 : 1991 Standard Test Method for Total Moisture in Coal
ASTM D 6708 : 2024 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6708 : 2004 Standard Practice for Statistical Assessment and Improvement of the Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 4749 : 1987 : R2007 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
ASTM D 2013 : 2000 Standard Practice of Preparing Coal Samples for Analysis
ASTM D 6708 : 2019 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6708 : 2016 : REV A Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6708 : 2008 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6609 : 2008 Standard Guide for Part-Stream Sampling of Coal
ASTM E 11 : 2022 Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
ASTM D 2234/D2234M : 2009 Standard Practice for Collection of a Gross Sample of Coal
ASTM D 7430 : 2016 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 6708 : 2001 Standard Practice for Statistical Assessment and Improvement of the Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 3302 : 2000 Standard Test Method for Total Moisture in Coal
ASTM D 6883 : 2004 : R2012 Standard Practice for Manual Sampling of Stationary Coal from Railroad Cars, Barges, Trucks, or Stockpiles
ASTM D 6708 : 2021 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 7430 : 2010 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2011 Standard Practice for Mechanical Sampling of Coal
ASTM D 6609 : 2001 Standard Guide for Part-Stream Sampling of Coal
ASTM D 6708 : 2001 : EDT 1 Standard Practice for Statistical Assessment and Improvement of the Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 7430 : 2017 Standard Practice for Mechanical Sampling of Coal
ASTM D 6708 : 2005 Standard Practice for Statistical Assessment and Improvement of the Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 7430 : 2012 Standard Practice for Mechanical Sampling of Coal
ASTM D 6609 : 2000 Standard Guide for Part-Stream Sampling of Coal
ASTM D 6708 : 2013 : EDT 1 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 6609 : 2008 : R2015 Standard Guide for Part-Stream Sampling of Coal
ASTM D 6708 : 2016 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 2013 : 2003 Standard Practice of Preparing Coal Samples for Analysis
ASTM D 7430 : 2008 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 3302 : 2007 Standard Test Method for Total Moisture in Coal
ASTM D 7430 : 2018 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 4749 : 1987 : R1994 : EDT 1 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
ASTM D 2013 : 2004 Standard Practice of Preparing Coal Samples for Analysis
ASTM D 7430 : 2016 : REV B Standard Practice for Mechanical Sampling of Coal
ASTM D 6708 : 2019 : REV A Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 2013 : 2001 Standard Practice of Preparing Coal Samples for Analysis
ASTM D 6609 : 2007 Standard Guide for Part-Stream Sampling of Coal
ASTM D 7430 : 2014 Standard Practice for Mechanical Sampling of Coal
ASTM D 4749 : 1987 : R2012 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
ASTM D 3302 : 2005 Standard Test Method for Total Moisture in Coal
ASTM D 3302 : 2002 : REV A : EDT 1 Standard Test Method for Total Moisture in Coal
ASTM D 7430 : 2015 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2015 Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2016 : REV B : EDT 1 Standard Practice for Mechanical Sampling of Coal
ASTM D 2013 : 1972 Standard Method Of Preparing Coal Samples For Analysis
ASTM D 7430 : 2011 : REV A : EDT 1 Standard Practice for Mechanical Sampling of Coal
ASTM D 2013 : 2007 Standard Practice for Preparing Coal Samples for Analysis
ASTM D 7430 : 2018 : REV A : EDT 1 Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2008 : REV A : EDT 1 Standard Practice for Mechanical Sampling of Coal
ASTM D 6883 : 2004 Standard Practice for Manual Sampling of Stationary Coal from Railroad Cars, Barges, Trucks, or Stockpiles
ASTM D 3302 : 2005 : EDT 1 Standard Test Method for Total Moisture in Coal
ASTM D 4749 : 1987 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
ASTM D 6708 : 2019 : REV A : EDT 1 Standard Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport to Measure the Same Property of a Material
ASTM D 7430 : 2008 Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2010 : REV B Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2011 : REV A Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2018 Standard Practice for Mechanical Sampling of Coal
ASTM D 7430 : 2015 : REV B Standard Practice for Mechanical Sampling of Coal
ASTM D 4749 : 1987 : R2002 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
ASTM D 3302 : 2007 : REV A Standard Test Method for Total Moisture in Coal
ASTM D 3302 : 2007 : REV A : EDT 1 Standard Test Method for Total Moisture in Coal

View more information
$115.52
Including GST where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Need help?
Call us on 131 242, then click here to start a Screen Sharing session
so we can help right away! Learn more