ASTM D7430-11ae1
Standard Practice for Mechanical Sampling of Coal

Standard No.

ASTM D7430-11ae1

Release Date

2011

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D7430-12

Latest

ASTM D7430/D7430M-22

Scope

It is intended that this practice be used to provide a sample representative of the coal from which it is collected. Because of the variability of coal and the wide variety of mechanical sampling equipment available, caution should be used in all stages of the sample collection process, the design of sampling system specifications, the equipment procurement and the acceptance testing of installed equipment.

After removal from the sampling system and further preparation (Practice D2013), the sample may be analyzed for a number of different parameters. These parameters may define the lot''s value, its ability to meet specifications, its environmental impact, as well as other properties.

1.1 This practice is divided into 4 parts. These 4 parts represent the previous standards D7256/D7256M, D4916, D4702, and D6518. These 4 standards are the 4 that govern the mechanical sampling of coal and have been combined into one document for the ease of reference of the users of these standards.

Part A

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1.2 Part AMechanical Collection and Within-System Preparation of a Gross Sample of Coal from Moving Streams8212;Covers procedures for the mechanical collection of a sample under Classification I-B-1 and I-B-2 (Practice D2234/D2234M) and the within-system preparation (reduction and division) of gross samples utilizing various components of the mechanical sampling system.

1.2.1 Part A describes mechanical sampling procedures for coals (1) by size and condition of preparation (for example, mechanically cleaned coal or raw coal), and (2) by sampling characteristics.

1.2.2 The 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.

Part B

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1.3 Part BMechanical Auger Sampling8212;Describes procedures for the collection of an increment, partial sample, or gross sample of material using mechanical augers. Reduction and division of the material by mechanical equipment at the auger is also covered. Further manual or mechanical reduction or division of the material elsewhere shall be performed in accordance with Practice D2013.

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

Part C

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1.4 Part CQuality Management of Mechanical Coal Sampling Systems8212;Is applicable to the quality management of cross-belt, falling stream, and auger sampling systems.

1.4.1 Spacing of increments pertains to the kind of interval between increments. Intervals can be defined in quantitative terms, such as units of time or mass, or in terms of position o......

ASTM D7430-11ae1 Referenced Document

• ASTM D121 Standard Terminology of Coal and Coke
• ASTM D2013 Standard Method of Preparing Coal Samples for Analysis
• ASTM D2234/D2234M Standard Practice for Collection of a Gross Sample of Coal
• ASTM D4621 Standard Guide for Quality Management in an Organization That Samples or Tests Coal and Coke
• ASTM D4702 Standard Guide for Inspecting Crosscut, Sweep-Arm, and Auger Mechanical Coal-Sampling Systems for Conformance with Current ASTM Standards
• ASTM D4749 Standard Test Method for Performing the Sieve Analysis of Coal and Designating Coal Size
• ASTM D4916 Standard Practice for Mechanical Auger Sampling
• ASTM D6518 Standard Practice for Bias Testing a Mechanical Coal Sampling System
• ASTM D7256/D7256M Standard Practice for Mechanical Collection and Within-System Preparation of a Gross Sample of Coal from Moving Streams
• ASTM E105 Standard Practice for Probability Sampling Of Materials
• ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E456 Standard Terminology for Relating to Quality and Statistics
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D7430-11ae1 history

• 2022 ASTM D7430/D7430M-22 Standard Practice for Mechanical Sampling of Coal
• 2021 ASTM D7430/D7430M-21 Standard Practice for Mechanical Sampling of Coal
• 2020 ASTM D7430/D7430M-20 Standard Practice for Mechanical Sampling of Coal
• 2018 ASTM D7430-18ae1 Standard Practice for Mechanical Sampling of Coal
• 2018 ASTM D7430-18a Standard Practice for Mechanical Sampling of Coal
• 2018 ASTM D7430-18 Standard Practice for Mechanical Sampling of Coal
• 2017 ASTM D7430-17 Standard Practice for Mechanical Sampling of Coal
• 2016 ASTM D7430-16be1 Standard Practice for Mechanical Sampling of Coal
• 2016 ASTM D7430-16b Standard Practice for Mechanical Sampling of Coal
• 2016 ASTM D7430-16a Standard Practice for Mechanical Sampling of Coal
• 2016 ASTM D7430-16 Standard Practice for Mechanical Sampling of Coal
• 2015 ASTM D7430-15b Standard Practice for Mechanical Sampling of Coal
• 2015 ASTM D7430-15a Standard Practice for Mechanical Sampling of Coal
• 2015 ASTM D7430-15 Standard Practice for Mechanical Sampling of Coal
• 2014 ASTM D7430-14 Standard Practice for Mechanical Sampling of Coal
• 2013 ASTM D7430-13 Standard Practice for Mechanical Sampling of Coal
• 2012 ASTM D7430-12b Standard Practice for Mechanical Sampling of Coal
• 2012 ASTM D7430-12a Standard Practice for Mechanical Sampling of Coal
• 2012 ASTM D7430-12 Standard Practice for Mechanical Sampling of Coal
• 2011 ASTM D7430-11ae1 Standard Practice for Mechanical Sampling of Coal
• 2011 ASTM D7430-11a Standard Practice for Mechanical Sampling of Coal
• 2011 ASTM D7430-11 Standard Practice for Mechanical Sampling of Coal
• 2010 ASTM D7430-10b Standard Practice for Mechanical Sampling of Coal
• 2010 ASTM D7430-10a Standard Practice for Mechanical Sampling of Coal
• 2010 ASTM D7430-10 Standard Practice for Mechanical Sampling of Coal
• 2009 ASTM D7430-09 Standard Practice for Mechanical Sampling of Coal
• 2008 ASTM D7430-08ae1 Standard Practice for Mechanical Sampling of Coal
• 2008 ASTM D7430-08a Standard Practice for Mechanical Sampling of Coal
• 2008 ASTM D7430-08 Standard Practice for Mechanical Sampling of Coal