ASTM International - ASTM D3179-89(1997)
Standard Test Methods for Nitrogen in the Analysis Sample of Coal and Coke
|Publication Date:||1 January 1989|
1.1 These test methods cover the determination of total nitrogen in samples of coal and coke. The analytical data from these test methods shall be reported as part of ultimate analysis where ultimate analysis is requested. If ultimate analysis is not requested, the value shall be reported according to the request. Two methods are included as follows:
Test Method A-Kjeldahl-Gunning Macro Analysis, with an alter-native technique included
|9 to 16|
Test Method B-Kjeldahl-Gunning Semi-Micro Determination
|17 to 23|
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.
1.2 The values stated in SI units are to be regarded as the standard.