BS ISO 5073:2013
$102.76
Brown coals and lignites. Determination of humic acids
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 18 |
This International Standard specifies volumetric methods for the determination of
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total humic acids, and
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free humic acid,
of brown coals and lignites.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 9 | Section sec_1 Section sec_2 Section sec_3 Section sec_4 Section sec_4.1 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 4.1 Total humic acids |
| 10 | Section sec_4.2 Section sec_5 Section sec_5.1 Section sec_5.2 Section sec_5.3 Section sec_5.4 Section sec_5.5 Section sec_5.6 Section sec_5.7 4.2 Free humic acid 5 Reagents |
| 11 | Section sec_6 Section sec_6.1 Section sec_6.2 Section sec_7 Section sec_8 Section sec_8.1 Section sec_8.2 Section sec_8.3 Section sec_8.3.1 Section sec_8.3.2 6 Apparatus 7 Sample 8 Procedure 8.1 Extraction of total humic acids 8.2 Extraction of free humic acid 8.3 Determination of humic acids in extracts |
| 12 | Section sec_8.3.3 Section sec_8.3.3.1 Section sec_8.3.3.2 Section sec_9 Section sec_10 9 Expression of results 10 Precision of the method — Repeatability limit |
| 13 | Table tab_1 Section sec_11 11 Test report |
| 14 | Annex sec_A Annex sec_A.1 Annex sec_A.2 Annex sec_A.3 Annex sec_A.4 Annex sec_A.5 Annex sec_A.6 Annex A (normative) Determination of the ratio of carbon content of humic acids of brown coals and lignites |
| 15 | Annex sec_A.7 |
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