BSI PD CEN/TS 17769:2022
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Organic and organo-mineral fertilizers. Determination of the mercury content
Published By | Publication Date | Number of Pages |
BSI | 2022 | 14 |
This document specifies a method for determination of the content of mercury (Hg) in organic fertilizers and organo-mineral fertilizers using (cold) vapour generation apparatus coupled to an atomic absorption spectrophotometer and a method using a direct amalgamation technique. It is applicable to aqua regia digests prepared according to CEN/TS 17768. NOTE It is also possible to use other suitable methods for the determination of mercury described in Annex A if users prove that the method gives the same results as the methods described in this standard.
PDF Catalog
PDF Pages | PDF Title |
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2 | undefined |
7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 4.1 Vapour generation atomic absorption spectrophotometry (VG-AAS) 4.2 Direct amalgamation (DA) 5 Interferences 5.1 Vapour generation atomic absorption spectrophotometry (VG-AAS) |
8 | 5.2 Direct amalgamation (DA) 6 Reagents |
9 | 7 Apparatus 8 Procedure 8.1 Preparation of the test and blank solutions |
10 | 8.2 Preparation of the calibration solutions 8.3 Measurement 8.3.1 Instrument conditions 8.3.2 Matrix effects 8.3.3 Spiking |
11 | 8.3.4 Measurement by VG-AAS 8.3.5 Measurement by DA 9 Calculation and expression of the results 9.1 Content of mercury |
12 | 10 Test report |