DIN EN ISO 11905-1:1998-08
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01-01-1998
1 Scope
2 Normative references
3 Range of detection
4 Sensitivity
5 Principle
6 Reagents
7 Apparatus
8 Sampling and samples
9 Procedure
9.1 Test portion
9.2 Blank test
9.3 Cleaning digestion vessels
9.4 Digestion
9.5 Verification of recovery of organic nitrogen
9.6 Starting operation
9.7 Initial sensitivity setting
9.8 Calibration
9.9 Determination
10 Expression of results
10.1 Method of calculation
10.2 Precision data
11 Test report
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