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Significance and Use
5.1 Online analyzers are used to provide quality data on lots of coal. The resulting quality data are used as a production tool or for some contractual application. This guide provides the means of evaluating the analyzer system and the data produced.
5.2 Become familiar with the document's terminology and layout. The section on test design and data collection will provide the means by which all the analysis data will be gathered. The test should be carefully designed to ensure the user’s requirements are met.
5.3 The procedures defined in this guide can be used to estimate the accuracy and precision of an online analyzer, (1) to conduct acceptance testing following installation and (2) to monitor the accuracy and precision (a) during routine use (quality control), (b) when significant changes are made to the analyzer, and (c) when a significant change in the coal being analyzed occurs (e.g., a different seam at a mine, or a new coal source at a power plant). These procedures can also be used for calibration purposes.
1.1 This guide provides techniques to be used for the evaluation of the measurement performance of online coal analyzers.
1.2 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D121 Terminology of Coal and Coke
D2013 Practice for Preparing Coal Samples for Analysis
D2234/D2234M Practice for Collection of a Gross Sample of Coal
D4702 Practice for Quality Management of Mechanical Coal Sampling Systems
D6518 Practice for Bias Testing a Mechanical Coal Sampling System
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E178 Practice for Dealing With Outlying Observations
E456 Terminology Relating to Quality and Statistics
ICS Number Code 73.040 (Coals)
UNSPSC Code 15101601(Coal)