Vattenkvalitet

This part of ISO 13165 specifies the determination of radium-226 (226Ra) activity concentration in all types of water by coprecipitation followed by gamma-spectrometry (see ISO 18589-3[7]).
The method described is suitable for determination of soluble 226Ra activity concentrations greater than 0,02 Bq l−1 using a sample volume of up to 100 l of any water type.
For water samples smaller than a volume of 1 l, direct gamma-spectrometry can be performed following ISO 10703with a higher detection limit.
NOTE This test method can be adapted to determine other naturally occurring isotopes of radium, such as 223Ra, 224Ra, and 228Ra if the respective ingrowth periods are taken into account.

This document specifies a method for the determination of hexavalent chromium [Cr(VI)] and trivalent chromium [Cr(III)] in water by liquid chromatography with inductively coupled plasma mass spectrometry (LC‑ICP‑MS) after chelating pretreatment.
This method is applicable to the determination of Cr(VI) and Cr(III) dissolved in wastewater, surface water, groundwater, or drinking water from 0,20 μg/l to 500 μg/l of each compound as chromium (Cr) mass. Samples containing Cr at concentrations higher than the working range can be analysed following
appropriate dilution of the sample.

This document specifies additional requirements to the product standards given in Annex A for valves, fittings and devices with polymer parts and housings under internal pressure and without external loads intended for installations and apparatus inside buildings conveying water for human consumption.

This document specifies a method to determine the migration of substances from hardened cement based site-applied or site-formed materials (including pre-packaged mortars) into test waters after contact with the products. It also covers determination of migration from individual constituents of cement based products and materials (see Annex A and B) and from associated non-cement based products for approval purposes (see Annex C).
Site-applied or site-formed cement based materials which cannot be cast as cubes or prisms e.g. some spray applied systems, fall in the scope of EN 14944 −3 and not under this standard.
This document is applicable to site-applied or site-formed cement based materials intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water. It is also applicable to individual constituents of cement based products/materials and to associated non-cement based products/materials.
NOTE Tests with the specified test water will not necessarily be representative of materials used in different kinds of waters and especially very soft waters.

This document specifies the derivation of biological equivalence (BEQ) concentrations for results of in vitro bioassays which are based on measuring effects on a biological process such as enzyme induction or cellular growth. The concept described here can be used for any biological assay after the proof of its applicability.
To derive BEQ concentrations, the effect on a biological process caused by a sample – i.e. the activity of the sample – is expressed in terms of a concentration of a reference compound which results in an equivalent effect on the process. The term "sample" used in this document addresses environmental samples as well as defined mixtures and pure compounds used as test item in a bioassay. BEQ concentrations can be derived for environmental water samples, extracts of environmental water samples including tap water or solutions of pure chemicals or mixtures of chemicals.

This document specifies a method to determine the influence of site-applied cement based materials and associated non-cement based products/materials (including pre-packaged mortars) on the odour, flavour, colour, turbidity and total organic carbon (TOC) of test waters after contact with the products.
This document is applicable to site-applied or site-formed cement based materials intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water. It is also applicable to individual constituents of cement based products/materials and to associated non-cement based products/materials.
Site-applied or site-formed cement based materials which cannot be cast as cubes or prisms e.g. some spray applied systems, should be tested as factory made cement based products according to EN 14944−1.
NOTE Tests with the specified test water will not necessarily be representative of materials used in different kinds of waters and especially very soft waters.

This document is applicable to devices for the generation and dosing of the biocide ozone. The ozone is generated in these devices according to the technology of dielectric barrier discharge. According to EN 1278 and EN 15074, ozone is suited for the use of the treatment of water intended for human consumption (drinking water), respectively for the treatment of swimming pool water. Ozone can be added to the water for disinfection and for oxidative purposes. This standard may be also applied for other technologies to generate ozone, e.g. electrolysis or UV irradiation, as far as reasonable or applicable.
This standard specifies the devices construction, and test methods for the equipment used for in situ generation of ozone. It specifies requirements for instructions for installation, operation, maintenance, safety and for documentation to be provided with the product.
The in situ generation of active substances, in particular ozone, is subject to the specifications of the Biocidal Products Regulation (EU) 528/2012 (BPR) [10]. The use of ozone for the purpose of disinfection/microbiological preservation of water requires compliance with the provisions of the BPR, in particular access by the user or his device manufacturer to a data set required for the authorization of ozone under the BPR.
The in situ generation of ozone for the predominant purpose of oxidation of ingredients of water is subject to the specifications of the REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) [11] Regulation (EC) 1907/2006. The use for oxidative purposes requires access by the user to the data set provided for the authorization of ozone under REACH.