SIST EN 14395-1:2005
(Main)Influence of organic materials on water intended for human consumption - Organoleptic assessment of water in storage systems - Part 1: Test method
Influence of organic materials on water intended for human consumption - Organoleptic assessment of water in storage systems - Part 1: Test method
This European Standard specifies a test method for determining the organoleptic properties (odour, flavour, colour and turbidity) of test waters after their contact with products made from organic materials used in storage systems (tanks, reservoirs, ancillaries and their coatings both for factory and site applied products).
Products containing cementitious materials are not covered by this standard.
The test method described in this standard is applicable to products to be used under various conditions for the storage of water intended for human consumption and raw water used for the manufacture of water intended for human consumption. Coatings or protective layers on products which are not intended to be in contact with these types of waters are not covered by this method.
This standard specifies the test method comprising a set of procedures with and without a disinfection pretreatment and possible temperatures for the test waters. The use of the disinfection pretreatment and the choice of the test temperature are dependant on the relevant national regulations and/or the system or product standards.
Einfluss von organischen Werkstoffen auf Wasser für den menschlichen Gebrauch - Organoleptische Prüfung von Wasser in Speichersystemen - Teil 1: Prüfverfahren
Dieses Dokument legt ein Verfahren zur Bestimmung der organoleptischen Eigenschaften (Geruch, Geschmack, Färbung und Trübung) in Prüfwässern nach deren Kontakt mit organischen Produkten fest, die in Speichersystemen verwendet werden (Behälter, Speicher, Ausrüstungsgegenstände und deren Beschichtungen sowohl für fabrikmäßig hergestellte als auch vor Ort hergestellte Produkte).
Produkte, die zementgebundene Materialien enthalten, sind nicht Gegenstand dieses Dokumentes.
Das in dieser Norm beschriebene Prüfverfahren ist auf Produkte anwendbar, die unter verschiedenen Bedingungen für die Speicherung von Wasser für den menschlichen Gebrauch vorgesehen sind und für Rohwasser, das zu Wasser für den menschlichen Gebrauch aufbereitet werden soll. Beschichtungen oder Schutzanstriche auf Produkten, die nicht bestimmungsgemäß mit diesen Arten von Wasser in Berührung kommen, sind nicht Gegenstand dieser Norm.
Dieses Dokument legt die Prüfverfahren fest und umfasst eine Anzahl von Verfahren mit und ohne Desinfektionsvorbehandlung und mit unterschiedlichen Temperaturen der Prüfwässer. Die Anwendung der Desinfektionsvorbehandlung und die Wahl der Prüftemperatur hängen von den einschlägigen nationalen Regelungen und/oder den System- oder Produktnormen ab.
Influence des matériaux organiques sur l'eau destinée a la consommation humaine - Evaluation organoleptique de l'eau dans les systemes de stockage - Partie 1 : Méthode d'essai
Le présent document spécifie une méthode de détermination des propriétés organoleptiques (odeur, flaveur,
couleur et turbidité) des eaux d?essai apres leur contact avec les produits réalisés a partir de matériaux organiques
utilisés dans les systemes de stockage (citernes, réservoirs, accessoires et leurs revetements, tant pour les
produits fabriqués en usine que pour ceux appliqués sur site).
Le présent document ne couvre pas les produits contenant des matériaux a base de ciment.
La méthode d?essai décrite dans la présente norme est applicable aux produits utilisables dans diverses conditions
pour le stockage de l?eau destinée a la consommation humaine et de l?eau brute utilisée pour la production d?eau
destinée a la consommation humaine. Les revetements ou les couches protectrices des produits qui ne sont pas
destinés a etre en contact avec ces types d?eaux ne sont pas couverts par cette méthode.
Le présent document spécifie la méthode d?essai comprenant une série de modes opératoires, avec et sans
prétraitement de désinfection, et les températures possibles pour les eaux d?essai. L?utilisation du prétraitement de
désinfection et le choix de la température d?essai dépendent des réglementations nationales appropriées et/ou des
normes de systeme ou de produit.
Vpliv organskih snovi na pitno vodo – Ocenjevanje organoleptičnih lastnosti vode v sistemih za hranjenje – 1. del: Preskusna metoda
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Einfluss von organischen Werkstoffen auf Wasser für den menschlichen Gebrauch - Organoleptische Prüfung von Wasser in Speichersystemen - Teil 1: PrüfverfahrenInfluence des matériaux organiques sur l'eau destinée a la consommation humaine - Evaluation organoleptique de l'eau dans les systemes de stockage - Partie 1 : Méthode d'essaiInfluence of organic materials on water intended for human consumption - Organoleptic assessment of water in storage systems - Part 1: Test method13.060.45Preiskava vode na splošnoExamination of water in general13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 14395-1:2004SIST EN 14395-1:2005en01-marec-2005SIST EN 14395-1:2005SLOVENSKI
STANDARD
SIST EN 14395-1:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14395-1October 2004ICS 13.060.20; 13.060.45 English versionInfluence of organic materials on water intended for humanconsumption - Organoleptic assessment of water in storagesystems - Part 1: Test methodInfluence des matériaux organiques sur l'eau destinée à laconsommation humaine - Evaluation organoleptique del'eau dans les systèmes de stockage - Partie 1 : Méthoded'essaiEinfluss von organischen Werkstoffen auf Wasser für denmenschlichen Gebrauch - Organoleptische Prüfung vonWasser in Speichersystemen - Teil 1: PrüfverfahrenThis European Standard was approved by CEN on 8 August 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14395-1:2004: ESIST EN 14395-1:2005
EN 14395-1:2004 (E) 2 Contents page Foreword.4 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Principle.8 5 Test environment.9 6 Reagents.9 6.1 Sodium thiosulfate solution.9 6.2 Disinfection reagents.9 6.3 Waters to be used for testing.9 6.4 Cleaning liquids for apparatus.9 7 Apparatus.10 7.1 Apparatus for migration assessment.10 7.2 Apparatus for odour and flavour assessment.10 7.3 Apparatus for colour and turbidity assessment.10 8 Samples and test pieces.10 8.1 Homogeneous and non-homogeneous factory made and site applied products.10 8.2 Samples and test pieces of site applied products.11 8.3 Surface-area-to-volume ratio (S/V).11 9 Preparation of reagents and apparatus.12 9.1 Reference water.12 9.2 Water with chlorine content.12 9.3 Disinfection treatment water.12 9.4 Cleaning of the glassware.12 10 23 °C test procedure.13 10.1 General.13 10.2 Flushing.13 10.3 Stagnation.13 10.4 Pre-washing.14 10.5 Migration.14 11 Elevated temperature test procedure.14 11.1 General.14 11.2 Flushing.14 11.3 Stagnation.14 11.4 Flushing.15 11.5 Elevated temperature stagnation.15 11.6 Elevated temperature rinsing.15 11.7 Elevated temperature migration.15 12 Determination of TON and TFN.15 13 Determination of colour and turbidity.15 14 Expression of results.15 15 Test report.16 SIST EN 14395-1:2005
EN 14395-1:2004 (E) 3 15.1 .16 15.2 General information.16 15.3 Information on the product.16 15.4 Information on the test procedure.16 15.5 Test results.17 Annex A (informative)
Schematic presentation of the test method.18 Bibliography.21 SIST EN 14395-1:2005
EN 14395-1:2004 (E) 4 Foreword This document (EN 14395-1:2004) has been prepared by Technical Committee CEN/TC 164 “Water supply”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2005, and conflicting national standards shall be withdrawn at the latest by April 2005. The material-dependent parameters and/or performance requirements are incorporated into the Product Standards, for example the System Standards for storage systems. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 14395-1:2005
EN 14395-1:2004 (E) 5 Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by the materials, it is recalled to mind that, while awaiting the adoption of verifiable European acceptance criteria, such as proposed in a future European Acceptance Scheme, national regulations remain in force. SIST EN 14395-1:2005
EN 14395-1:2004 (E) 6 1 Scope This document specifies a test method for determining the organoleptic properties (odour, flavour, colour and turbidity) of test waters after their contact with products made from organic materials used in storage systems (tanks, reservoirs, ancillaries and their coatings both for factory and site applied products). Products containing cementitious materials are not covered by this document. The test method described in this standard is applicable to products to be used under various conditions for the storage of water intended for human consumption and raw water used for the manufacture of water intended for human consumption. Coatings or protective layers on products which are not intended to be in contact with these types of waters are not covered by this method. This document specifies the test method comprising a set of procedures with and without a disinfection pretreatment and possible temperatures for the test waters. The use of the disinfection pretreatment and the choice of the test temperature are dependant on the relevant national regulations and/or the system or product standards. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1622:1997, Water analysis - Determination of the threshold odour number (TON) and threshold flavour number (TFN). EN ISO 7393-2:2000, Water quality - Determination of free chlorine and total chlorine - Part 2: Colorimetric method using N, N-diethyl-1, 4-phenylenediamine for routine control purposes (ISO 7393-2:1985). EN ISO 7887:1994, Water quality - Examination and determination of colour (ISO 7887:1994). EN ISO 7027:1999, Water quality - Determination of turbidity (ISO 7027:1999). 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 odour organoleptic attribute perceptible by olfactory organ on sniffing certain volatile substances [ISO 5492:1992] 3.2 flavour complex combination of the olfactory, gustatory and trigeminal sensations perceived during tasting. The flavour may be influenced by tactile, thermal, painful and/or kinaesthesic effects [ISO 5492:1992] NOTE The term «taste» should not be used to designate the combination of gustatory, olfactory and trigeminal sensations which are designated by the term «flavour». If, in informal language, this term is used in this sense, it should always be associated with a qualifying term, e.g. musty taste, raspberry taste, corky taste. SIST EN 14395-1:2005
EN 14395-1:2004 (E) 7 3.3 threshold odour number (TON) dilution ratio of the migration water with the reference water at the same temperature, beyond which this diluted sample does not have any perceptible odour 3.4 threshold flavour number (TFN) dilution ratio of the migration water with the reference water at the same temperature, beyond which this sample does not have any perceptible flavour 3.5 colour optical property that causes the changing of the spectral composition of transmitted visible light measured at three wavelengths [EN ISO 7887:1994, Clause 3] 3.6 turbidity reduction of transparency of a liquid caused by the presence of undissolved matter [EN ISO 7027:1999] 3.7 reference water water described as without any odour, flavour, colour and turbidity 3.8 test water water used for testing purposes prepared as described in 6.3.2 and 6.3.3 3.9 migration water test water which has been in contact with a test piece under specified conditions 3.10 blank water test water which has been kept at the same specified conditions as migration water but without contact with the test piece 3.11 flushing water tapwater distributed by a public supplier 3.12 disinfection treatment water water containing chlorine prepared as described in 6.2.2 3.13 testing panel group of people that carried out the odour /flavour assessment 3.14 storage vessels tanks, reservoirs, cisterns and their coatings 3.15 ancillary complete functional unit made up of one or more components (e.g. piping systems, ladders, structural supports, valves, baffles) SIST EN 14395-1:2005
EN 14395-1:2004 (E) 8 3.16 storage systems combination of storage vessels and necessary ancillaries 3.17 products manufactured item in its finished form 3.18 sample one or more units, or a specified quantity, drawn from a batch or lot, selected at random for inspection, e.g. in a laboratory 3.19 test piece sample or portion which is conditioned, treated or otherwise prepared to be tested to obtain a single test result 3.20 homogeneous product product where the water contact surface is made from the same material as the remainder of the product 3.21 non-homogeneous product product where the water contact surface is made from a material that differs from those comprising the remainder of the product 3.22 factory made product products made in a factory under controlled conditions as part of the manufacturing process 3.23 site applied product product manufactured on site (e.g. sealing membranes), or products mixed, applied and cured on site (e.g. coatings, sealants and adhesives) 4 Principle Following a defined pretreatment procedure including flushing, stagnation with or without disinfection and pre-washing, the surface of the test pieces to be tested, exposed in practice to drinking water, is brought into contact with test waters. The migration procedure is carried out three times on the same test piece under specified conditions as follows. Test pieces are put in contact with chlorinated and unchlorinated water for 72 h at 23 °C, or put in contact with unchlorinated water for 24 h at a specified temperature in the range 60 °C to 85 °C. After this contact the migration water is assessed for colour and turbidity and by a test panel to determine the odour (TON) and flavour (TFN). Additional information is given in the relevant product standard, system standard or in national regulation concerning: the temperature to be used in the test; the need for a disinfection pretreatment; the need to carry out a 23 °C test, using chlorinated water, for products being tested at elevated temperatures. SIST EN 14395-1:2005
EN 14395-1:2004 (E) 9 5 Test environment When testing of odour and flavour, the test environment shall conform to the requirements given in EN 1622. 6 Reagents 6.1 Sodium thiosulfate solution Sodium thiosulfate solution, comprising a solution of 3,5 g/l of sodium thiosulfate pentahydrate
(Na2S2O3 × 5H2O) analytical grade, stored in the absence of light at a temperature below 10 °C, for a maximum of 4 months. 6.2 Disinfection reagents 6.2.1 Sodium hypochlor
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