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BS ISO 23695:2023

$102.76

Water quality. Determination of ammonium nitrogen in water. Small-scale sealed tube method

Published By Publication Date Number of Pages
BSI 2023 22
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
4 Principle
5 Interferences
11 6 Sampling and sample preparation
7 Reagents
12 8 Apparatus
9 Reaction conditions for the colour reaction
9.1 General
9.2 Salicylate based reaction
13 9.3 Chlorophenol based reaction
10 Quality control
10.1 ​Verification of the calibration and acceptability criteria
14 10.2 System and interferences checks
11 Calculation
15 12 Expression of results
13 Test report
16 Annex A (informative) Principle of alternative distillation
19 Annex B (informative) Performance data
20 Bibliography
BS ISO 23695:2023
$102.76