Vattenkvalitet

Kommittébeteckning: SIS/TK 424 (Kemiska vattenundersökningar)
Källa: CEN
Svarsdatum: den 1 mar 2018
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This document specifies the following semi-quantitative methods for the assessment of transparency of waters:

a) measurement of visual range using the transparency testing tube (applicable to transparent and slightly cloudy water); see Clause 4.

b) measurement of visual range in the upper water layers using the transparency testing disc (especially applicable to surface, bathing water, waste water and often used in marine monitoring); see 5.1.

c) measurement of visibility by divers in a destined depth, see 5.2.

NOTE The quantitative methods using optical turbidimeters or nephelometers are described in part 1 of ISO 7027.

Kommittébeteckning: SIS/TK 424 (Kemiska vattenundersökningar)
Källa: ISO
Svarsdatum: den 8 mar 2018
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This document specifies a method for the determination of the dissolved fraction of selected active pharmaceutical ingredients and transformation products as well as other organic substances (see Table 1) in drinking water, ground water and surface water at mass concentrations ≥ 0,025 μg/l and in treated waste water at mass concentrations ≥ 0,050 μg/l.

The lower application range of this method can vary depending on the sensitivity of the equipment used and the matrix of the sample.

The method can be used to determine further organic substances or in other types of water provided that accuracy has been tested and verified for each case as well as storage conditions of both samples and reference solutions have been validated. Please refer to Table E.1 for examples of determining other organic substances.

Table 1 — Substances whose determination was tested according to this method

 

 

Kommittébeteckning: SIS/TK 424 (Kemiska vattenundersökningar)
Källa: CEN
Svarsdatum: den 8 mar 2018
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This document establishes general requirements for sampling, preservation, handling, transport and storage of all water samples including those for biological analyses. It is not applicable to water samples intended for microbiological analyses as specified in ISO 19458, ecotoxicological assays, biological assays, and passive sampling as specified in the scope of ISO 5667-23.

This document is particularly appropriate when spot or composite samples cannot be analysed on site and have to be transported to a laboratory for analysis.

Kommittébeteckning: SIS/TK 426 (Biologiska vattenundersökningar)
Källa: CEN
Svarsdatum: den 8 mar 2018
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This document provides guidance for assessing the efficiency and related metrics of fish passage solutions using telemetry methods that allow fish approaching an impediment to be monitored.

It provides recommendations and requirements for equipment, study design, data analysis and reporting. A selected literature with references in support of this standard is given in the Bibliography section.

Kommittébeteckning: SIS/TK 426 (Biologiska vattenundersökningar)
Källa: CEN
Svarsdatum: den 18 mar 2018
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This document specifies procedures for sampling of mesozooplankton using nets and ribbon-sampling devices in marine and brackish waters for the purpose of water quality assessment and determination of ecological status of ecosystems.

Guidance on sampling procedures and the subsequent steps of preservation and storage are given. The sampling procedures allow estimates of species occurrence and their abundance (relative or absolute), including spatial distribution and seasonal and long-term temporal trends, for a given body of water.

The described methods are restricted to the sampling of mesozooplankton that inhabit marine and brackish waters and exclude the shallow littoral zones which require a different type of sampling (e.g. zooplankton in salt marshes).

Kommittébeteckning: SIS/TK 424 (Kemiska vattenundersökningar)
Källa: CEN
Svarsdatum: den 1 apr 2018
Se merSe mindre
 

This document specifies a method for the quantitative determination of the sum of short-chain polychlorinated n-alkanes also known as short-chain polychlorinated paraffins (SCCPs) in the carbon bond range n-C10 to n-C13 inclusive, in mixtures with chlorine mass fractions ("contents") between 50 % and 67 %, including approximately 6 000 of approximately 8 000 congeners.

This method is applicable to the determination of the sum of SCCPs in unfiltered surface water, ground water, drinking water and waste water using gas chromatography-mass spectrometry with electron capture negative ionization (GC-ECNI-MS).

Depending on the capability of the GC-ECNI-MS instrument the concentration range of the method is from 0,1 μg/l or lower to 10 μg/l. Depending on the waste water matrix, the lowest detectable concentration is estimated to be > 0,1 μg/l.