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BSI 23/30463159 DC:2023 Edition

BSI 23/30463159 DC:2023 Edition

$13.70

BS EN 17705. Plant biostimulants. Determination of phosphonates

Published By Publication Date Number of Pages
BSI 2023 17
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This document specifies a method for the extraction and determination of phosphonates (P-PO3) in plant biostimulants using ion chromatography and conductivity detection (IC-CD). This document is applicable to the fertilizing product blends belonging to PFC 7 where the EU fertilising product plant biostimulant contained in the blend represents the highest % by mass in the blend. In case of equal shares, the user may apply either this or the standard(s) applicable to the other component product(s).

PDF Catalog

PDF Pages PDF Title
7 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
8 6 Apparatus
7 Sampling
9 8 Procedure
8.1 Sample preparation
8.2 Water extraction
8.3 Preparation of the calibration solutions
10 8.4 Measurement
8.4.1 Instrument conditions
8.4.2 IC-CD measurement
11 9 Calculation and expression of the results
9.1 Integration of peaks
9.2 Concentration of phosphonates in test solutions
12 10 Test report
13 Annex A (informative)Separation of phosphonates from other interfering ions in a mixture of standards
14 Annex B (informative)Results of the inter-laboratory study
B.1 Inter-laboratory tests
B.2 Statistical results for determination of phosphonates
16 Annex ZA (informative)Relationship of this European Standard and the essential requirements of Regulation (EU) 2019/1009 making available on the market of EU fertilising products aimed to be covered

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BSI 23/30463159 DC
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