Starch and derived products - Heavy metals content - Part 2: Determination of mercury content by atomic absorption spectrometry (ISO 11212-2:1997)

Stärke und Stärkederivate - Schwermetallgehalt - Teil 2: Bestimmung des Quecksilbergehaltes durch Atomabsorptionsspektrometrie (ISO 11212-2:1997)

Dieser Teil von ISO 11212 legt ein Verfahren für die Bestimmung des Quecksilbergehaltes von Stärke, einschließlich von Derivaten und Nebenprodukten, durch Atomabsorptionsspektrometrie mit Kaltdampferzeugung fest. Die gegenwärtig verfügbaren Kaltdampferzeuger verwenden sehr verschiedene Verfahren; es ist folglich unmöglich, ein umfassendes Verfahren vorzuschlagen, das das Erreichen von zufriedenstellenden Ergebnissen für alle Gerätetypen sicherstellt.

Amidons, fécules et produits dérivés - Teneur en métaux lourds - Partie 2: Détermination de la teneur en mercure par spectrométrie d'absorption atomique (ISO 11212-2:1997)

La présente partie de l'ISO 11212 prescrit une méthode pour la détermination de la teneur en mercure dans les amidons, fécules, produits dérivés et sous-produits d'amidonnerie par spectrométrie d'absorption atomique avec génération de vapeur froide. Les appareils générateurs de vapeur froide actuellement commercialisés utilisant des techniques très différentes, il est donc impossible de proposer une méthode détaillée susceptible de garantir l'obtention de résultats satisfaisants sur tous les types d'appareils. Il convient donc que chaque analyste procède à l'optimisation des conditions d'utilisation de son propre instrument sur la base des recommandations générales ou particulières qui lui sont données.

Škrob in derivati škroba - Delež težkih kovin - 2. del: Določevanje živega srebra z atomsko absorpcijsko spektrometrijo (ISO 11212-2:1997)

General Information

Status
Published
Publication Date
14-Mar-1997
Withdrawal Date
29-Sep-1997
Technical Committee
Drafting Committee
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
16-Jul-2001
Completion Date
16-Jul-2001

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 11212-2:1998
01-november-1998
âNURELQGHULYDWLãNURED'HOHåWHåNLKNRYLQGHO'RORþHYDQMHåLYHJDVUHEUD]
DWRPVNRDEVRUSFLMVNRVSHNWURPHWULMR ,62
Starch and derived products - Heavy metals content - Part 2: Determination of mercury
content by atomic absorption spectrometry (ISO 11212-2:1997)
Stärke und Stärkederivate - Schwermetallgehalt - Teil 2: Bestimmung des
Quecksilbergehaltes durch Atomabsorptionsspektrometrie (ISO 11212-2:1997)
Amidons, fécules et produits dérivés - Teneur en métaux lourds - Partie 2: Détermination
de la teneur en mercure par spectrométrie d'absorption atomique (ISO 11212-2:1997)
Ta slovenski standard je istoveten z: EN ISO 11212-2:1997
ICS:
67.180.20 Škrob in izdelki iz njega Starch and derived products
SIST EN ISO 11212-2:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11212-2:1998

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SIST EN ISO 11212-2:1998

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SIST EN ISO 11212-2:1998

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SIST EN ISO 11212-2:1998
INTERNATIONAL Is0
11212-2
STANDARD
First edition
1997003- 15
Starch and derived products - Heavy
metals content -
Part 2:
Determination of mercury content by atomic
absorption spectrometry
Amidons, f&u/es et produits d&iv& - Teneur en mbtaux lourds -
Parfie 2: Dbtermination de la teneur en mercure par spectrom&rie
d ’absorption atomique
Reference number
IS0 11212-2:1997(E)

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SIST EN ISO 11212-2:1998
IS0 11212-2: 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. 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 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 voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 11212-2 was prepared by Technical Committee
ISOKC 93, Starch (including derivatives and by-products).
IS0 11212 consists of the following parts, under the general title Starch
and derived products - Heavy metals content.
- Part 1: Determination of arsenic content by atomic absorption
spectrometry
- Part 2: Determination of mercury content by atomic absorption
spectrometry
- Part 3: Determination of lead content by atomic absorption
spectrometry with electrothermal atomization
- Part 4: Determination of cadmium content by atomic absorption
spectrometry with electrothermal atomization
Annex A of this part of IS0 11212 is for information only.
0 IS0 1997
All rights reserved. Unless otherwise specified, 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-1211 Geneve 20 l Switzerland
Internet
central @ iso.ch
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii

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SIST EN ISO 11212-2:1998
INTERNATIONAL STANDARD o 1s0 IS0 11212=2:1997(E)
Starch and derived products - Heavy metals content -
Part 2:
Determination of mercury content by atomic absorption spectrometry
1 Scope
This part of IS0 11212 specifies a method for the determination of the mercury content of starch, including
derivatives and by-products, by atomic absorption spectrometry with cold-vapour generation.
The cold-vapour generators currently available use very different techniques; it is thus impossible to propose a
comprehensive method likely to ensure the attainment of satisfactory results on all types of apparatus. Each analyst
should therefore optimize the conditions of use of his/her own apparatus on the basis of general or particular
instructions.
2 Definition
For the purposes of this part of IS0 11212, the following definition applies.
2.1 mercury content: Quantity of mercury determined in accordance with the conditions specified in this method
and expressed as mercury (Hg), in micrograms per kilogram of the product as received.
3 Principle
Wet digestion of the organic matrix. Reduction of mer
...

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