BS ISO 20702:2017:2018 Edition
$198.66
Fertilizers and soil conditioners. Determination of microamounts of inorganic anions in fertilizers by ion chromatography
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 60 |
This document specifies the ion chromatography method for the determination of microamounts of water soluble inorganic anions, such as fluoride (F−), chloride (Cl−), bromide (Br−), iodide (I−), nitrite (NO2−) and thiocyanate (SCN−), in fertilizers.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents |
| 11 | 6 Apparatus and materials |
| 12 | 7 Test procedure 7.1 General 7.2 Preparation of test sample 7.3 Activation of the filter columns 7.4 Preparation of the test solution |
| 13 | 7.5 Ion chromatography condition A (Gradient chromatography condition) |
| 14 | 7.6 Ion chromatography condition B (Isocratic chromatography condition) 7.7 Determination of standard working solutions and sample test solutions |
| 15 | 8 Calculation and expression of results 8.1 General 8.2 Precision 8.2.1 Ring test 8.2.2 Repeatability, r 8.2.3 Reproducibility, R 9 Test report |
| 17 | Annex A (informative) Ring test report — Report of international laboratories ring test |
| 54 | Annex B (informative) Typical ion chromatogram for gradient chromatography conditions |
| 55 | Annex C (informative) Typical ion chromatogram for isocratic chromatography conditions |
| 56 | Annex D (informative) Additional statistical index of the test results |
| 58 | Bibliography |
