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Significance and Use
5.1 The standard sample is available to producers and users of RDF as a method for determining the weight percent of nitrogen in the analysis samples.
5.2 Nitrogen is part of the ultimate analysis and can be used for calculation of combustion parameters.
1.1 These test methods cover the determination of total Kjeldahl nitrogen in prepared analysis samples of solid forms of refuse-derived fuel (RDF). The procedures measure free ammonia or ammonia formed from the conversion of organic nitrogenous compounds such as amino acids and proteins. However, the procedures may not convert the nitrogenous compounds of some wastes to ammonia. Examples of such compounds that may not be measured are nitro compounds, hydrozones, oxines, nitrates, semicarbazones, pyridines, and some refractory tertiary amines.
1.2 Two alternatives are described for the final determination of the ammonia, the Kjeldahl-Gunning Test Method and the Acid-Titration Test Method.
1.3 The analytical data from these test methods are to be reported as part of the ultimate analysis where ultimate analysis is requested.
1.4 These test methods may be applicable to any waste material from which a laboratory analysis sample can be prepared.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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. For specific precautionary statements see and Section .
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1193 Specification for Reagent Water
D5681 Terminology for Waste and Waste Management
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
E790 Test Method for Residual Moisture in a Refuse-Derived Fuel Analysis Sample
E791 Test Method for Calculating Refuse-Derived Fuel Analysis Data from As-Determined to Different Bases
E829 Practice for Preparing Refuse-Derived Fuel (RDF) Laboratory Samples for Analysis
ICS Number Code 75.160.10 (Solid fuels)
UNSPSC Code 77100000(Environmental management)
ASTM E778-15, Standard Test Methods for Nitrogen in Refuse-Derived Fuel Analysis Samples, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top