ISO/IEC 17025:2017 specifies the general requirements for the competence, impartiality and consistent operation of laboratories.
ISO/IEC 17025:2017 is applicable to all organizations performing laboratory activities, regardless of the number of personnel.
Laboratory customers, regulatory authorities, organizations and schemes using peer-assessment, accreditation bodies, and others use ISO/IEC 17025:2017 in confirming or recognizing the competence of laboratories.

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      Slovenian and English language
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This document specifies culture methods for the isolation of Legionella and estimation of their numbers
in water samples.
These methods are applicable to all kinds of water samples including potable, industrial, waste and
natural waters. These methods can be used for water related matrices, e.g. biofilms, sediments, etc.
Not all Legionella species are culturable; therefore, the methods described in this document do not
recover all species of Legionella.

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This part of ISO 9308 specifies a method for the enumeration of Escherichia coli (E. coli) and coliform
bacteria. The method is based on membrane filtration, subsequent culture on a chromogenic coliform
agar medium, and calculation of the number of target organisms in the sample. Due to the low selectivity
of the differential agar medium, background growth can interfere with the reliable enumeration of
E. coli and coliform bacteria, for example, in surface waters or shallow well waters. This...
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EN ISO 17994 specifies an evaluation procedure for comparing two methods intended for the quantification of the same target group or species of microorganisms. This International Standard provides the mathematical basis for the evaluation of the average relative performance of two quantitative methods against chosen criteria for the comparison. It does not provide data that would allow an assessment of the precision of the methods being compared. Precision of methods should be assessed as part o...view more

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This International Standard specifies a method for the detection of Salmonella spp. (presumptive or confirmed) in water samples. It is possible that, for epidemiological purposes or during outbreak investigations, other media are also required.

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This part of ISO 10304 specifies a method for the determination of dissolved bromide, chloride, fluoride, nitrate, nitrite, orthophosphate and sulfate in water, e.g. drinking water, ground water, surface water, waste water, leachates and marine water by liquid chromatography of ions. The lower limit of application is ≥ 0,05 mg/l for bromide and for nitrite, and ≥ 0,1 mg/l for chloride, fluoride, nitrate, orthophosphate and sulfate. The lower limit application depends on the matrix and the interf...view more

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    • Corrigendum
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ISO 10523:2008 specifies a method for determining the pH value in rain, drinking and mineral waters, bathing waters, surface and ground waters, as well as municipal and industrial waste waters, and liquid sludge, within the range pH 2 to pH 12 with an ionic strength below I =  0,3 mol/kg (conductivity at 25 �C <2 000 mS/m) solvent and in the temperature range 0 �C to 50 �C.

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This part of ISO 10304 specifies a method for the determination of dissolved bromide, chloride, fluoride, nitrate, nitrite, orthophosphate and sulfate in water, e.g. drinking water, ground water, surface water, waste water, leachates and marine water by liquid chromatography of ions. The lower limit of application is ≥ 0,05 mg/l for bromide and for nitrite, and ≥ 0,1 mg/l for chloride, fluoride, nitrate, orthophosphate and sulfate. The lower limit application depends on the matrix and the interf...view more

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This International Standard specifies a method for the isolation and enumeration of Pseudomonas aeruginosa in samples of bottled water by a membrane filtration technique. This method can also be applied to other types of water with a low background flora, for example, pool waters and waters intended for human consumption. Pseudomonas aeruginosa is an opportunistic pathogen of man that is capable of growth in water at very low nutrient concentrations. At source and during marketing, a natural min...view more

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This International Standard provides guidance on planning water sampling regimes, on sampling procedures for microbiological analysis and on transport, handling and storage of samples until analysis begins. It focuses on sampling for microbiological investigations. General information in respect to the sampling from distinct water bodies is given in the respective parts of ISO 5667.

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This European standard specifies methods for the determination of orthophosphate (see clause three); orthophosphate after solvent extraction (see clause four); hydrolysable phosphate plus orthophosphate (see clause five); total soluble phosphorus and total phosphorus after decomposition (see clauses six and seven). The methods are applicable to all kinds of water including seawater and effluents. Phosphorus contents within the range of 0,005 to 0,8 mg per litre may be determined in such samples ...view more

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Migrated from Progress Sheet (TC Comment) (2000-07-10): N 315: New TD (980916) ++ new tc forecast in BP (bli991206)

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Migrated from Progress Sheet (TC Comment) (2000-07-10): TC 230 Res. 87: // approval procedure on the revision of ISO 7899-2:1984. ++ N315: New TD (TA/980915)

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This part of ISO 6888 specifies a horizontal method for the enumeration of coagulase-positive staphylococci in
products intended for human consumption or feeding of animals, by counting of colonies obtained on a solid
medium (Baird-Parker medium) after aerobic incubation at 35 °C or 37 °C.

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This European Standard specifies a method for the enumeration of culturable micro-organisms in water by counting the colonies formed in a nutrient agar culture medium after aerobic incubation at 36 °C and 22 °C. The method is intended to measure the operational efficiency of the treatment process of public drinking water supplies and for general application to all types of water. It is particulary applicable to the examination of water intended for  human consumption, including water in closed c...view more

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The method is intended for monitoring waste water and the respective concentration of the anions mentioned in the title.

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Migrated from Progress Sheet (TC Comment) (2000-07-10): N 315: New TD (980916)

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Specifies a procedure for water, readily applicable to field testing; it is based on measurement of the colour intensity by visual comparison of the colour with a scale of standards which is regularly calibrated. Sea water and waters containing bromides and iodides comprise a group for which special procedures are required. The procedure is applicable to concentrations, in terms of chlorine, from 0,000 4 to 0,07 mmol/l total chlorine and at higher concentrations by dilution of samples. Interfere...view more

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    • Standard
      8 pages
      French language
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      French language