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BS EN 13656:2020

BS EN 13656:2020

$167.15

Soil, treated biowaste, sludge and waste. Digestion with a hydrochloric (HCl), nitric (HNO3) and tetrafluoroboric (HBF4) or hydrofluoric (HF) acid mixture for subsequent determination of elements

Published By Publication Date Number of Pages
BSI 2020 40
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This document specifies three methods for the digestion of soil, treated biowaste, sludge and waste by the use of an acid mixture composed of hydrochloric (HCl), nitric (HNO3) and tetrafluoroboric (HBF4) or hydrochloric (HCl), nitric (HNO3) and hydrofluoric (HF) acid as the digestion solution. Digestion with these acids is effectively considered as a total decomposition of the sample. For a broad range of samples the extracted analyte concentrations will reflect the total content in the sample. This document is applicable for the following elements: Aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), beryllium (Be), cadmium (Cd), calcium (Ca), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), magnesium (Mg), manganese (Mn), mercury (Hg), molybdenum (Mo), nickel (Ni), phosphorus (P), potassium (K), selenium (Se), silver (Ag), sodium (Na), strontium (Sr), sulfur (S), tellurium (Te), thallium (Tl), tin (Sn), titanium (Ti), vanadium (V), and zinc (Zn). This document can also be applied for the digestion of other elements, provided the user has verified the applicability.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Principle
9 5 Interferences and sources of errors
5.1 General information
5.2 Closed vessel system for microwave digestion
6 Reagents
10 7 Apparatus
11 8 Procedure
8.1 General
8.2 Blank test
8.3 Method A: Heating block digestion using HCl, HNO3 and HBF4
12 8.4 Method B: Microwave digestion
8.4.1 Method B1: Digestion with HBF4, HNO3 and HCl using microwave heating, temperature-controlled, closed vessels
13 8.4.2 Method B2: Digestion with HF, HNO3 and HCl using microwave heating, power-controlled, closed vessels
14 9 Test report
15 Annex A (normative)Calibration of the power adjustment
16 Annex B (informative)Repeatability and reproducibility data – Method A and B1
B.1 Inter-laboratory study
B.2 Selection of laboratories
B.3 Selection of samples
17 B.4 Experimental
B.5 Results
B.6 Conclusions
25 Annex C (informative)Repeatability and reproducibility data – Method B2
C.1 Inter-laboratory study
C.1.1 General
C.1.2 Selection of laboratories
C.1.3 Selection of samples
26 C.1.4 Experimental
C.1.5 Results
C.1.6 Conclusions
33 C.2 Robustness study
C.2.1 General
34 C.2.2 Analytical method
35 C.2.3 Results
37 C.2.4 Conclusion

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BS EN 13656:2020
$167.15