ASTM-D7256/D7256M 2006

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D7256/D7256M-06a Standard Practice for Mechanical Collection and Within-System Preparation of a Gross Sample of Coal from Moving Streams

Published By	Publication Date	Number of Pages
ASTM	2006	6

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Category: ASTM

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Description

ASTM D7256/D7256M-06a

Historical Standard: Standard Practice for Mechanical Collection and Within-System Preparation of a Gross Sample of Coal from Moving Streams

ASTM D7256/D7256M

Scope

1.1 This practice covers procedures for the mechanical collection of a sample under Classification I-B-1 and I-B-2 (Practice D 2234) and the within-system preparation (reduction and division) of gross samples utilizing various components of the mechanical sampling system.

1.2 This practice 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.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, use each system independently of the other. Combining values from the two systems may result in nonconformance with the standard.

This 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.

Keywords

coal; coal sampling; mechanical sampling; sample division; sample reduction

ICS Code

ICS Number Code 73.040 (Coals)

DOI: 10.1520/D7256_D7256M-06A

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Practice Significance and Use Increment Collection Classification TABLE 1
3	Organization and Planning of Sampling Operations
4	Procedures
5	FIG. 1
6	Maintenance of Mechanical Sampling Equipment Precision and Bias Keywords

Additional information

Standard Title	D7256/D7256M-06a Standard Practice for Mechanical Collection and Within-System Preparation of a Gross Sample of Coal from Moving Streams
Published Code	ASTM
Publication Date	2006
Pages Count	6