EN 1899-2:1998
(Main)Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 2: Method for undiluted samples (ISO 5815:1989, modified)
Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 2: Method for undiluted samples (ISO 5815:1989, modified)
This European Standard specifies determination of the biochemical oxygen demand of waters of undiluted samples. This standard is applicable to all waters having biochemical oxygen demands greater than or equal to the limit of determination 0,5 mg/l of oxygen and not exceeding 6 mg/l of oxygen.
Wasserbeschaffenheit - Bestimmung des biochemischen Sauerstoffbedarfs nach n Tagen (BSBn) - Teil 2: Verfahren für unverdünnte Proben (ISO 5815:1989, modifiziert)
Diese Europäische Norm legt eine Bestimmung des biochemischen Sauerstoffbedarfs in unverdünnten Wasserproben fest. Diese Norm ist für alle Wässer, deren biochemischer Sauerstoffbedarf größer oder gleich der Bestimmungsgrenze von 0,5 mg/l Sauerstoff ist, aber 6 mg/l Sauerstoff nicht überschreitet geeignet.
Qualité de l'eau - Détermination de la demande biochimique en oxygène après n jours (DOBn) - Partie 2: Méthode pour les échantillons non dilués (ISO 5815:1989, modifiée)
La présente norme européenne spécifie la détermination de la demande biochimique en oxygène dans les eaux pour des échantillons non dilués. La présente norme est applicable à tous les types d'eau dont la demande biochimique en oxygène est supérieure ou égale à la limite de détermination de 0,5 mg/l d'oxygène et ne dépasse pas 6mg/l d'oxygène.
Kakovost vode – Določevanje biokemijske potrebe po kisiku po n dneh (BPKn) - 2. del: Metoda za nerazredčene vzorce (ISO 5815:1989, spremenjen)
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Wasserbeschaffenheit - Bestimmung des biochemischen Sauerstoffbedarfs nach n Tagen (BSBn) - Teil 2: Verfahren für unverdünnte Proben (ISO 5815:1989, modifiziert)Qualité de l'eau - Détermination de la demande biochimique en oxygene apres n jours (DOBn) - Partie 2: Méthode pour les échantillons non dilués (ISO 5815:1989, modifiée)Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 2: Method for undiluted samples (ISO 5815:1989, modified)13.060.50VQRYLExamination of water for chemical substancesICS:Ta slovenski standard je istoveten z:EN 1899-2:1998SIST EN 1899-2:2000en01-januar-2000SIST EN 1899-2:2000SLOVENSKI
STANDARD
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
SIST EN 1899-2:2000
INTERNATIONAL STANDARD 5815 Second edition 1989-08-01 -- Water quality - Determination of biochemical oxygen demand after 5 days (BODs) - Dilution and seeding method Qua/it@ de l’eau - Dktermination de la demande biochimigue en oxyghne aprks 5 jours fDBOS) - Mkthode par dilution et ensemencement Reference number IS0 5815 : 1989 (E) SIST EN 1899-2:2000
Is0 5815 : 1989 (El Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the IS0 Council. They are approved in accordance with IS0 procedures requiring at least 75 % approval by the member bodies voting. International Standard IS0 5815 was prepared by Technical Committee ISO/TC 147, Water quality. This second edition constitutes a minor replaces cancels and revision. the first edition (IS0 5815 : 19831, of which it Annex A of this International Standard is for information only. 0 IS0 1989 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 l CH-121 1 Genkve 20 l Switzerland Printed in Switzerland SIST EN 1899-2:2000
INTERNATIONAL STANDARD IS0 5815-1989 (E) Water quality - Determination of biochemical oxygen demand after 5 days (BOD5) - Dilution and seeding method 1 Scope This International Standard specifies a method for the empirical and conventional determination of the biochemical oxygen demand of waters by dilution and seeding. The method is applicable to all waters having biochemical oxygen demands greater than or equal to 3 mg of oxygen per litre and not exceeding 6 000 mg of oxygen per Iitre. For biochemical oxygen demands greater than 6 000 mg of oxygen per litre, the method is still applicable, but the errors caused by the dilutions necessary require the results to be interpreted with circumspection. The results obtained are the product of a combination of biochemical and chemical actions. They do not have the rigorous and unambiguous character of those resulting from, for example, a single, well-defined, chemical process. Never- theless, they provide an indication from which the quality of waters can be estimated. The test may be influenced by the presence of various substances. Those which are toxic to micro-organisms, for example bactericides, toxic metals or free chlorine, will inhibit biochemical oxidation. The presence of algae or nitrifying micro-organisms may produce artificially high results. Annex A gives infor and temperatur .es. mation on alternative incubation periods 2 Normative references I SQ 7393-l : 1985, Water quality - Determination of free chlorine and total chlorine - Part I : Titrime tric method using N, N-diethyl- 7,4phenylenediamine. IS0 7393-2 : 1985, Water quality - Determination of free chlorine and total chlorine - Part 2 : Calorimetric method using N , N-die thy/- 1,4phenylenediamine, for routine con trof purposes. 3 Definition For the purposes definition applies. of this International Standard, the following biochemical oxygen demand IBOD) : The mass co
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