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Metals in water
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Metals in natural waters | Metals in wastewater |
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| V-1 Metals in freshwater (accredited for natural water and drinking water) |
| Ca (100) |
K (400) |
Mg (90) |
Na (100) |
S (160) |
| Si (30) |
Sr (2) |
Al (60) |
As (100) |
B (10) |
| Ba (4) |
Cd (20) |
Co (20) |
Cr (20) |
Cu (7) |
| Fe (20) |
Li (4) |
Mn (3) |
Mo (20) |
Ni (20) |
| P (140) |
Pb (100) |
V (9) |
Zn (10) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 30 ml.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered. |
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V-1 may be supplemented with additional elements. For elements within the accreditation:
Ag(0.05), Hg(0.002), Sb(0.01), Sn(0.05), Th(0.02), U(0.0005), V(0.005) and W(0.05).
Supplementary analysis
| Methyl mercury (0.03) |
| Figure in brackets denotes limit of quantification in ng/l. Minimum sample volume: 100 ml. |
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| V-2 Metals in freshwater (accredited for natural water and drinking water) |
| Ca (100) |
K (400) |
Mg (90) |
Na (100) |
| S (160) |
Si (30) |
Sr (2) |
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| Al (0.2) |
As (0.05)* |
Ba (0.01) |
Cd (0.002)** |
| Co (0.005) |
Cr (0.01) |
Cu (0.1) |
Fe (0.4) |
| Hg (0.002) |
Mn (0.03) |
Mo (0.05) |
Ni (0.05) |
| P (1) |
Pb (0.01) |
Zn (0.2) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
*A higher limit of quantification applies to samples with high chloride levels.
**A higher limit of quantification applies to samples with high molybdenum levels.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered. |
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V-2 may be supplemented with additional elements. For elements within the accreditation:
Ag(0.05), B(10), Li(4), Sb(0.01), Sn(0.05), Th(0.02), Tl (0.01), U(0.0005), V(0.005) and W(0.05).
Lower Hg concentrations can be determined by a special technique.
 Limit values for drinking water
Supplementary analysis
A special analysis for selenium is available. See "Other" below.
| Methyl mercury (0.03) |
| Figure in brackets denotes limit of quantification in ng/l. Minimum sample volume: 100 ml. |
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| V-2 Basic Metals in freshwater (accredited for natural water and drinking water) |
| As (0.05)* |
Cd (0.002)** |
Co (0.005) |
Cr (0.01) |
| Cu (0.1) |
Mo (0.05) |
Ni (0.05) |
Pb (0.01) |
| Zn (0.2) |
V (0.005) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
*A higher limit of quantification applies to samples with high chloride levels.
**A higher limit of quantification applies to samples with high molybdenum levels.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered. |
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V-2 Basic may be supplemented with additional elements. For elements within the accreditation: Ag (0.05), Al (0.2), B (10), Ba (0.01), Li (4), Sb (0.01), Fe (0.4), Mn (0.03), P (1), Sn (0.05), Th (0.02), U (0.0005) and W (0.05).
V-2 Basic may also be supplemented with Hg (0.002).
Lower Hg concentrations can be determined by a special technique. |
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V-5 Metals in seawater (accredited)
Maximum salinity 3.5% |
| Ca (200) |
K (500) |
Mg (90) |
Na (120) |
S (160) |
| Si (200) |
Sr (50) |
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| Al (0.7) |
Ba (0.1) |
Cd (0.05)** |
Co (0.05) |
Cr (0.1) |
| Cu (0.5) |
Fe (4) |
Hg (0.002) |
Mn (0.1) |
Mo (0.1) |
| Ni (0.5) |
P (40) |
Pb (0.3) |
Zn (2) |
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Figures in brackets denote limits of quantification in µg/l. Limits of quantification apply to routine analyses. Lower limits of quantification can be achieved by specially optimised analyses (non-accredited). Please contact the laboratory for information. Minimum sample volume: 60 ml.
**A higher limit of quantification applies to samples with high molybdenum levels.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered. |
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V-5 may be supplemented with additional elements. For elements within the accreditation:
Ag (0.5), Sb (0.1), Sn (0.5), Th (0.2), Tl (0.1), U(0.01) and V(0.05).
As may be ordered as a supplementary element analyzed by high resolution technique.
Supplementary analysis
| Methyl mercury (0.03) |
| Figure in brackets denotes limit of quantification in ng/l. Minimum sample volume: 100 ml. |
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| V-6 Metals in brackish water (accredited) Maximum salinity 1.2% |
| Ca (200) |
K (500) |
Mg (90) |
Na (120) |
S (160) |
| Si (40) |
Sr (10) |
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| Al (0.3) |
Ba (0.04) |
Cd (0.02)** |
Co (0.02) |
Cr (0.04) |
| Cu (0.2) |
Fe (2) |
Hg (0.002) |
Mn (0.04) |
Mo (0.04) |
| Ni (0.2) |
P (5) |
Pb (0.1) |
Zn (0.8) |
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Figures in brackets denote limits of quantification in µg/l. Limits of quantification apply to routine analyses. Lower limits of quantification can be achieved by specially optimised analyses (non-accredited). Please contact the laboratory for information. Minimum sample volume: 60 ml.
**A higher limit of quantification applies to samples with high molybdenum levels.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered. |
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V-6 may be supplemented with additional elements. For elements within the accreditation:
Ag (0.3), Sb (0.05), Sn (0.3), Th (0.1), Tl (0.05), U (0.005) and V (0.03).
As may be ordered as a supplementary element analyzed by high resolution technique.
Supplementary analysis
| Methyl mercury (0.03) |
| Figure in brackets denotes limit of quantification in ng/l. Minimum sample volume: 100 ml. |
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| Methyl mercury in water |
| Methyl-Hg (0.03) |
Figures in brackets denote limits of quantification in ng/l. Minimum sample volume: 100 ml.
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| Other analyses |
| Chromium (VI), Cr6+ |
| Selenium (digestion included) |
| For the determination of of Se, the sample is digested with 4.8 M HCl in an autoclave (134°C) for 2 h. |
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Single element determinations in water samples are also available. |
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METALS IN WASTEWATER |
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| V-3a Metals in wastewater (without digestion) (accredited for natural water) |
| Al (2) |
As (1)* |
Ba (0.2) |
Ca (200) |
| Cd (0.05)** |
Co (0.05) |
Cr (0.5) |
Cu (1) |
| Fe (4) |
Hg (0.02) |
K (500) |
Mg (90) |
| Mn (0.2) |
Na (120) |
Ni (0.5) |
Pb (0.2) |
| S (160) |
Zn (2) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
*A higher limit of quantification applies to samples with high chloride levels.
**A higher limit of quantification applies to samples with high molybdenum levels.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered.
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V-3a may be supplemented with additional elements. For elements within the accreditation:
Ag (0.5), B (20), Li (10), Mo (1), P (10), Sb (0.1), Si (40), Sn (0.5), Sr (10), Th (0.2), Tl (0.1), U (0.01), V (0.05) and W (0.5).
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| V-3a Basic Metals in wastewater (without digestion) (accredited for natural water) |
| As (1)* |
Cd (0.05)** |
Co (0.05) |
Cr (0.5) |
| Cu (1) |
Mo (1) |
Ni (0.5) |
Pb (0.2) |
| V (0.05) |
Zn (2) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
*A higher limit of quantification applies to samples with high chloride levels.
**A higher limit of quantification applies to samples with high molybdenum levels.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered.
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V-3a Basic may be supplemented with additional elements. For elements within the accreditation: Ag (0.5), Al (2), B (20), Ba (0.2), Fe (4), Hg (0.02), Li (10), Mn (0.2), Sb (0.1), Si (40), Sn (0.5), Sr (10), Th (0.2), Tl (0.1), U (0.01) and W (0.5)***.
*** Samples for W should not be acidified.
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V-3b Metals in wastewater (after digestion) (accredited for natural water) |
| Al (50) |
As (1)* |
Ba (1) |
Ca (200) |
| Cd (0.05)** |
Co (0.2) |
Cr (0.9) |
Cu (1) |
| Fe (20) |
Hg (0.02) |
K (400) |
Mg (140) |
| Mn (0.9) |
Na (500) |
Ni (0.6) |
Pb (0.6) |
| S (200) |
Zn (4) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
*A higher limit of quantification applies to samples with high chloride levels.
**A higher limit of quantification applies to samples with high molybdenum levels.
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V-3b may be supplemented with additional elements. For elements within the accreditation
Ag (0.5), B (20), Li (10), Mo (1), P (10), Sb (0.1), Si (100), Sn (0.5), Sr (2), Th (0.2), Tl (0.1), U (0.02) and V (0.2).
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V-3b Basic Metals in wastewater (after digestion) (accredited for natural water) |
| As (1)* |
Cd (0.05)** |
Co (0.2) |
Cr (0.9) |
| Cu (1) |
Mo (1) |
Ni (0.6) |
Pb (0.6) |
| V (0.2) |
Zn (4) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
*A higher limit of quantification applies to samples with high chloride levels.
**A higher limit of quantification applies to samples with high molybdenum levels.
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V-3b Basic may be supplemented with additional elements. For elements within the accreditation: Ag (0.5), Al (18), B (20), Ba (1), Fe (20), Li (10), Mn (0.9), P (10), Sb (0.1), Si (40), Sn (0.5), Sr (2), Th (0.2), Tl (0.1) and U (0.02).
V-3b Basic may also be supplemented with Hg (0.02).
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| V-4a Metals in wastewater (without digestion) (accredited for natural water) |
| Al (120) |
As (100) |
B (20) |
Ba (10) |
Ca (200) |
| Cd (20) |
Co (20) |
Cr (20) |
Cu (10) |
Fe (20) |
| K (500) |
Li (10) |
Mg (90) |
Mn (10) |
Mo (20) |
| Na (120) |
Ni (40) |
P (140) |
Pb (100) |
S (160) |
| Si (40) |
Sr (10) |
V (10) |
Zn (10) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
Water samples containing sediment are decanted prior to conservation, unless filtering has been ordered.
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V-4a may be supplemented with additional elements.
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| V-4b Metals in wastewater (after digestion) (accredited for natural water) |
| Al (120) |
As (100) |
B (20) |
Ba (10) |
Ca (200) |
| Cd (20) |
Co (20) |
Cr (30) |
Cu (10) |
Fe (40) |
| K (400) |
Li (10) |
Mg (140) |
Mn (10) |
Mo (20) |
| Na (500) |
Ni (40) |
P (140) |
Pb (100) |
S (200) |
| Si (40) |
Sr (2) |
V (10) |
Zn (10) |
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Figures in brackets denote limits of quantification in µg/l. Minimum sample volume: 60 ml.
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V-4b may be supplemented with additional elements.
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| Other analyses |
| Selenium, including digestion |
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| Information about interferences |
| As: For samples that are high in chloride, the limit of quantification in V-3a and V-3b will increase. A lower limit can then be achieved by using high-resolution ICP-MS. |
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