ISO 12772:1997

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Laboratorijska steklovina - Mikrohematokritne kapilarne cevke za enkratno uporaboVerrerie de laboratoire -- Tubes capillaires microhématocrites à usage uniqueLaboratory glassware -- Disposable microhaematocrit capillary tubes71.040.20Laboratorijska posoda in aparatiLaboratory ware and related apparatusICS:Ta slovenski standard je istoveten z:ISO 12772:1997SIST ISO 12772:1998en01-april-1998SIST ISO 12772:1998SLOVENSKI
STANDARD



SIST ISO 12772:1998



INTERNATIONAL STANDARD 12772 First edition 1997-05-o 1 Laboratory glassware - Disposable microhaematocrit capillary tubes Verrerie de labora toire - Tubes capillaires microh6matocrites & usage unique Reference number IS0 12772: 1997(E) SIST ISO 12772:1998



IS0 12772: 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. This International Standard IS0 12772 has been prepared by Technical Committee lSO/TC 48, Laboratory glassware and related apparatus, Subcommittee SC 1, Volumetric instruments. Annexes A, B and C form an integral part of this International Standard. Annexes D and E are 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 SIST ISO 12772:1998



INTERNATIONAL STANDARD @ IS0 IS0 12772: 1997(E) Laboratory glassware - Disposable microhaematocrit capillary tubes 1 Scope This International Standard provides details for two types of disposable glass capillary tubes, suitable for the microhaematocrit test and other analytical tests which include a separation of plasma and cells. The details specified are in conformity with IS0 8417, to the greatest possible extent. WARNING - Capillary tubes can break during the analytical test procedure, resulting in broken sharp glass, blood spillage and aerosols. Appropriate precautions shall be taken to avoid dangerous infections. 2 Normative references The following standards contain provisions which, through references in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 719:1985, Glass - Hydrolytic resistance of glass grains at 98 OC - Method of test and classification. IS0 8417:---l, Laboratory volumetric instruments - Principles of design and construction of disposable volumetric articles. 3 Definition For the purposes of this International Standard, the following definition applies. 3.1 disposable: Adjective used to describe microhaematocrit capillary tubes which are intended to be used once only and then discarded. NOTE - Such capillary tubes will only be expected to provide their specified performance during the original operation. 4 Classification This International Standard describes two types of disposable glass capillary tubes as follows: - Type I: coated with anti-coagulant - Type II: uncoated NOTE - Ammonium heparin, lithium heparin and sodium heparin are the preferred anti-coagulants for the microhaematocrit test. Salts of EDTA 21 and fluorides (usually sodium or potassium) may be used when capillary tubes are needed for special purposes. ‘) To be published. 2, EDTA is a n abbreviation for ethylenediaminotetraacetic acid SIST ISO 12772:1998



IS0 12772:1997(E) @ IS0 5 Construction 5.1 Material When tested in accordance with the procedure and classification given in IS0 719, the glass used for the capillary tubes shall at least comply with the requirements of class HGB 3. The glass shall be free f
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