ISO-10304-3-1997.pdf
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1、INTERNATIONAL STANDARD IS0 10304-3 First edition 1997-08-l 5 Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 3: Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate Qualit de l eau - Dosage des anions dissous par chromatographie des ions e
2、n phase liquide - Partie 3: Dosage des ions chromate, iodure, sulfite, thiocyanate et thiosulfate This material is reproduced from IS0 documents under International Organization for Standardization (ISO) Copyright License number lHSllCCll996. Not for resale. No part of these IS0 documents may be rep
3、roduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of IS0 (Case postale 56,1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or the IS0 Licenser s members. Reference number IS0 10304-3:
4、1997(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 19:36:12 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 10304-3: 1997(E) Contents 1 Scope ,
5、*,.,.*., . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6、. . . . . . 1 3 Principle *., 2 4 Determination of iodide, thiocyanate and thiosulfate . . . 2 4.1 Reagents 2 4.2 Apparatus . 6 4.3 Interferences 8 4.4 Sampling and sample pretreatment . 9 4.5 Procedure . 10 4.6 Calculation . 11 4.7 Expression of results 11 4.8 Test report 12 5 Determination of sulf
7、ite 12 5.1 Reagents 12 5.2 Apparatus . 15 5.3 Interferences 15 5.4 Sampling and sample pretreatment . I5 5.5 Procedure . 16 5.6 Calculation . 16 5.7 Expression of results 16 5.8 Test report 16 6 Determination of chromate 16 6.1 Reagents 17 6.2 Apparatus . 18 6.3 Interferences 18 6.4 Sampling and sam
8、ple pretreatment . 18 6.5 Procedure . 18 6.6 Calculation . 19 6.7 Expression of results 19 6.8 Test report 19 7 Precision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9、. . . . . . . . . . . *-.-. 19 Annex A (informative) Interlaboratory trials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10、. . . . . . . . 20 Annex B (informative) Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 22 0 IS0 1997 All rights reserved. Unless otherwise specified, no part of this pub
11、lication 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-1211 Geneve 20 l Switzerland Internet central Q is
12、och x.400 c=ch; a=400net; p=iso; o=isocs; s=central Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 19:36:12 MDTNo reproduction or networking permitted wit
13、hout license from IHS -,-,- 0 IS0 IS0 10304-3: 1997(E) 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.
14、 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, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the Interna
15、tional Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bod
16、ies casting a vote. International Standard IS0 10304-3 was prepared by Technical Committee ISO/TC 147, Water quality SC 2, Physical, chemical and biochemical methods. IS0 10304 consists of the following parts, under the general title Water quality - Determination of dissolved anions by liquid chroma
17、tography of ions: - Part 1: Determination of fluoride, chloride, bromide, nitrate, nitrite, orthophosphate and sulfate in water with low contamination - Part 2: Determination of bromide, chloride, nitrate, nitrite, orthophosphate and sulfate in waste water - Part 3: Determination of chromate, iodide
18、, sulfite, thiocyanate and thiosulfate - Part 4: Determination of chlorate, chloride and chlorite in water with low contamination Annexes A and B of this part of IS0 10304 are for information only. III Copyright International Organization for Standardization Provided by IHS under license with ISO Li
19、censee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 19:36:12 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 10304-3:1997(E) IS0 Introduction The essential minimum requirements of an ion chromatographic system applied within the scope of this part of
20、 IS0 10304 are the following: a) Resolution of the column: For the anion to be determined it is essential that the peak resolution does not fall below R= 1,3 (4.2.2, figure 3) b) Method of detection: 1) measurement of the electrical conductivity with or without suppressor device 2) spectrometric mea
21、surement (UVNS), directly or indirectly 3) amperometric direct detection c) Applicability of the method: Working ranges according to table 1 d) Calibration (4.5.1): Calibration and determination of the linear working range (see IS0 8466-l) Guaranteeing the analytical quality: Validity check of the c
22、alibration function. Replicate determinations if necessary. The diversity of the appropriate and suitable assemblies and the procedural steps depending on them permit a general description only. For further information on the analytical technique, see reference l. iv Copyright International Organiza
23、tion for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/18/2007 19:36:12 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 IS0 10304-3:1997(E) Water quality - Determination of
24、 dissolved anions by liquid chromatography of ions - Part 3: Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate 1 Scope This part of IS0 10304 specifies methods for the determination in aqueous solution of the dissolved anions - iodide, thiocyanate and thiosulfate (clause 4); -
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