ASTM International - ASTM D3590-89(1994)e1
Standard Test Methods for Total Kjeldahl Nitrogen in Water
|Publication Date:||10 February 2002|
|ICS Code (Examination of water for chemical substances):||13.060.50|
1.1 These test methods cover the determination of total Kjeldahl nitrogen. The following test methods are included:
|Test Method A-Manual Digestion/Distillati||8 to 14|
|Test Method B-Semiautomated Colorimetric Bertholt||15 to 23|
1.2 The analyst should be aware that precision and bias statements included may not necessarily apply to the water being tested.
1.3 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.