SIST EN 13752:2003
(Main)Products used for treatment of water intended for human consumption - Manganese dioxide
Products used for treatment of water intended for human consumption - Manganese dioxide
This European standard is applicable to manganese dioxide used for treatment of water intended for human consumption. It describes the characteristics of manganese dioxide and specifies the requirements and the corresponding test methods for manganese dioxide. It gives information on its use in water treatment.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Mangandioxid
Diese Europäische Norm gilt für Mangandioxid zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Mangandioxid und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Mangandioxid fest und gibt Hinweise auf entsprechende analytische Verfahren. Sie gibt Informationen für seine Anwendung in der Wasseraufbereitung.
Produits utilisés pour le traitement de l'eau destinée a la consommation humaine - Dioxyde de manganese
La présente norme européenne est applicable au dioxide de manganèse utilisé pour le traitement de l'eau destinée à la consommation humaine. Elle décrit les caractéristiques du dioxide de manganèse et spécifie les prescriptions et les méthodes d'essai correspondantes pour le dioxide de manganèse. Elle donne les informations pour son emploi dans le traitement de l'eau.
Izdelki, ki se uporabljajo za pripravo pitne vode – Manganov dioksid
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Izdelki, ki se uporabljajo za pripravo pitne vode – Manganov dioksidProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - MangandioxidProduits utilisés pour le traitement de l'eau destinée a la consommation humaine - Dioxyde de manganeseProducts used for treatment of water intended for human consumption - Manganese dioxide71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 13752:2003SIST EN 13752:2003en01-oktober-2003SIST EN 13752:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13752March 2003ICS 71.100.80English versionProducts used for treatment of water intended for humanconsumption - Manganese dioxideProduits utilisés pour le traitement de l'eau destinée à laconsommation humaine - Dioxyde de manganèseProdukte zur Aufbereitung von Wasser für denmenschlichen Gebrauch - MangandioxidThis European Standard was approved by CEN on 19 August 2002.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 Management Centre 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13752:2003 ESIST EN 13752:2003
General information on manganese dioxide.11Annex B (normative)
General rules relating for safety.14Bibliography.15SIST EN 13752:2003
test.EN ISO 3696:1995, Water for analytical laboratory use - Specification and test methods (ISO 3696:1987).ISO 385-1, Laboratory glassware – Burettes – Part 1 : General requirements.ISO 6333, Water quality - Determination of manganese - Formaldoxime spectrometric method.3 Terms, definitions and symbolsFor the purposes of this European Standard, the terms, definitions and symbols given in EN 12901 apply.4 Description4.1 Identification4.1.1 Chemical nameManganese dioxide.4.1.2 Synonym or common namesManganese(IV) oxide, pyrolusite.4.1.3 Chemical formulaMnO2.NOTEManganese dioxide used as a catalytic filtering medium is a natural ore, usually pyrolusite. Manganese dioxide oresdiffer widely in their chemical composition depending on their origin. Most are composed of manganese dioxide together withsilica, alumina, iron oxide and numerous other elements present in varying proportions.SIST EN 13752:2003
1)Chemical Abstracts Service Registry Number.2)European Inventory of Existing Commercial Chemical Substances.SIST EN 13752:2003
EN 12902.8.2 Analysis8.2.1 Particle size distributionThe particle size distribution shall be determined on samples taken at the point of manufacture using the method oftest given in EN 12902.8.2.2 Bulk density looseThe bulk density loose shall be determined in accordance with EN 12902.8.2.3 Bulk density packedThe bulk density packed shall be determined in accordance with EN 12902.8.2.4 Oxidation capacity8.2.4.1 PrincipleA solution of manganese sulfate is passed through a bed of “regenerated” manganese dioxide. Portions of theeffluent are analysed for manganese and the cumulative volume, until breakthrough of manganese, is determined.8.2.4.2 Reagents8.2.4.2.1 GeneralAll reagents shall be of a recognized analytical grade and the water used shall conform to grade 2 in accordancewith EN ISO 3696:1995.SIST EN 13752:2003
of sodium hydrogen carbonate (NaHCO3) in water and add 0,1538 g of manganese sulfatemonohydrate (MnSO4.H2O). Dilute to 10 l with water and adjust the pH to 7,0 ± 0,5 using dilute sulfuric acid orsodium hydroxide solution as required.8.2.4.2.3 Manganese sulfate test solution, 1 mg/lDilute 2 l of the manganese sulfate stock solution (8.2.4.2.2) to 10 l with water and adjust the pH to 7,0 ± 0,5 usingdilute sulfuric acid or sodium hydroxide solution as required.8.2.4.2.4 Sodium hypochlorite solution, approximately 1 200 mg/l Cl2Dilute 10 ml of sodium hypochlorite solution, available chlorine concentration approximately 120 g/l to 1 l withwater.8.2.4.3 ApparatusOrdinary laboratory apparatus and glassware together with the following.8.2.4.3.1Glass burette of 50 ml capacity conforming to the requirements of ISO 385-1.8.2.4.3.2Graduated measuring cylinder, 200 ml capacity.8.2.4.3.3Borosilicate glass bottle, 10 l capacity.8.2.4.4 Preparation of test sampleTake approximately 100 g of the manganese dioxide and sieve to obtain that fraction of the material sized between0,355 mm and 0,850 mm, using the procedure for determination of particle size described in EN 12902. Use thisfraction for the determination.Take approximately 20 g of the manganese dioxide (0,355 mm to 0,850 mm), place in a 250 ml beaker and gentlywash with successive portions of water until all adherent fines have been removed. Dry the beaker and contents toconstant mass at (100 ± 5) °C.Place a loose plug of glass wool in the bottom of the burette ( 8.2.4.3.1) and add the manganese dioxide to a depthof approximately 50 mm. Connect the nozzle of the burette to a cold water tap by means of suitable rubber tubingand backwash the manganese dioxide in the burette vigorously ensuring complete fluidisation of the bed in order toremove any ultra-fine material not previously removed. When any remaining fines have been washed off, turn offthe tap and drain down the water in the burette to just above the surface of the manganese dioxide bed . To avoidentrapment of air ensure the water level does not fall below the top of the manganese dioxide bed.Tap the burette gently with a glass rod fitted with a rubber policeman to compact the manganese dioxide andmeasure the depth of the bed of manganese dioxide and the internal diameter of the burette and calculate thevolume of the bed of manganese dioxide in litres.Add sodium hypochlorite solution (8.2.4.2.4) to the burette and allow to drain out drop wise until the manganesedioxide has been in contact with the sodium hypochlorite solution for 10 min. Drain the sodium hypochlorite solutionuntil the liquid level is just above the surface of the manganese dioxide bed. Fill the burette with water, open the tapfully and rinse the manganese dioxide for about 10 min to remove residual sodium hypochlorite solution.SIST EN 13752:2003
and dried manganese dioxide for each test.8.2.4.6 Expression of resultsThe oxidation capacity of the ma
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