BS EN ISO 11905-1-1998 Water quality - Determination of nitrogen - Method using oxidative digestion with peroxodisulfate《水质 氮的测定 过硫酸盐氧化消化法》.pdf
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1、BRITISH STANDARD BS EN ISO 11905-1:1998 BS6068-2.62: 1998 Water quality Determination of nitrogen Part1: Method using oxidative digestion with peroxodisulfate The European Standard EN ISO11905-1:1998 has the status of a British Standard ICS13.060.01BSENISO11905-1:1998 This British Standard, having b
2、een prepared under the directionof the Health and Environment Sector Board,was published under theauthority of the Standards Board and comes into effect on 15 July 1998 BSI 04-1999 ISBN 0 580 29952 X Amendments issued since publication Amd. No. Date CommentsBSEN ISO11905-1:1998 BSI 04-1999 i Content
3、s Page National foreword ii Foreword 2 Foreword iii Text of ISO11905-1 1BSENISO11905-1:1998 ii BSI 04-1999 National foreword This British Standard is the English language version of EN ISO11905-1:1998. It is identical with ISO11905-1:1997. The UK participation in its preparation was entrusted by Tec
4、hnical Committee EH/3, Water quality, to Subcommittee EH/3/2, Physical, chemical and biochemical methods, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, a
5、nd keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standar
6、ds normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “Inter
7、national Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. BS EN ISO11905-1 is one of a series of standards on water quality, others of which have been, or will be, published as sections of BS6068. This standard has therefore been given the s
8、econdary identifier BS6068-2.62. The various sections of BS6068 are comprised within Parts1to7, which, together with Part0, are listed below. Part0: Introduction; Part1: Glossary; Part2: Physical, chemical and biochemical methods; Part3: Radiological methods; Part4: Microbiological methods; Part5: B
9、iological methods; Part6: Sampling; Part7: Precision and accuracy. NOTEThe tests described in this British Standard should only be carried out by suitably qualified persons with an appropriate level of chemical expertise. Standard chemical procedures should be followed throughout. A British Standard
10、 does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an
11、inside front cover, pagesi andii, theEN ISOtitle page, page2, the ISO title page, pagesii toiv, pages1 to10, andaback cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.EUROPEAN S
12、TANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO11905-1 May 1998 ICS13.060.01 Descriptors: See ISO document English version Water quality Determination of nitrogen Part1:Method using oxidative digestion with peroxodisulfate (ISO11905-1:1997) Qualit de leau Dosage de lazote Partie1: Mthode par minralis
13、ation oxydante au peroxodisulfate (ISO11905-1:1997) Wasserbeschaffenheit Bestimmung von Stickstoff Teil1: Bestimmung von Stickstoff nach oxidativem Aufschlu mit Peroxodisulfat (ISO11905-1:1997) This European Standard was approved by CEN on 25 April 1998. CEN members are bound to comply with the CEN/
14、CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to a
15、ny CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.
16、CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de
17、Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO11905-1:1998EENISO11905-1:1998 BSI 04-1999 2 Foreword The text of the Inte
18、rnational Standard from Technical Committee ISO/TC147 “Water quality” of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC230 “Water analysis”, the secretariat of which is held by DIN. This European Standard shall be gi
19、ven the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 1998, and conflicting national standards shall be withdrawn at the latest by November 1998. According to the CEN/CENELEC Internal Regulations, the national standards organiz
20、ations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The t
21、ext of the International Standard ISO11905-1:1997 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative).ENISO11905-1:1998 ii Contents Page Foreword iii Introduction 1 1 Scope 1 2 Normative refe
22、rences 1 3 Range of detection 1 4 Sensitivity 1 5 Principle 1 6 Reagents 2 7 Apparatus 3 8 Sampling and samples 3 9 Procedure 4 9.1 Test portion 4 9.2 Blank test 4 9.3 Cleaning digestion vessels 4 9.4 Digestion 4 9.5 Verification of recovery of organic nitrogen 4 9.6 Starting operation 4 9.7 Initial
23、 sensitivity setting 5 9.8 Calibration 5 9.9 Determination 6 10 Expression of results 6 10.1 Method of calculation 6 10.2 Precision data 6 11 Test report 6 Annex A (informative) Precision data 7 Annex B (informative) Recovery data for some nitrogen-containing compounds 8 Annex C (informative) Determ
24、ination of nitrate 9 Annex D (informative) Bibliography 10 Annex ZA (normative) Normative references to international publicationswiththeir relevant European publications 10 Figure 1 5 Table A.1 Precision data of the results of the total nitrogen internationalcollaborative trial 7 Descriptors: Water
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