EN 20187:1993

Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples (ISO 187:1990)

Specifies the standard atmosphere for conditioning and testing pulp, paper, and board, and also the procedures for measuring the temperature and relative humidity. For the conditioning of laboratory prepared handsheets in accordance with ISO 5269-1, the standard atmosphere is that defined in this standard, but the procedure is different. Annex A covers the measurement of temperature and relative humidity. Annex B (informative) describes the interdependence of temperature and relative humidity. This second edition cancels and replaces the first edition (1977) which has been technically revised.

Papier, Pappe und Zellstoff - Normalklima für die Vorbehandlung und Prüfung und Verfahren zur Überwachung des Klimas und der Probenvorbehandlung (ISO 187:1990)

Diese Internationale Norm legt das Normalklima für die Vorbehandlung und Prüfung von Zellstoff, Papier und weiterhin die Verfahren zur Messung von Temperatur und relativer Luftfeuchte fest. Für die Vorbehandlung von Laborprüfbogen nach ISO 5269-1:1979 ist das Normalklima das in dieser Internationalen Norm definierte Klima, jedoch ist die Durchführung unterschiedlich.

Papier, carton et pâtes - Atmosphère normale de conditionnement et d'essai et méthode de surveillance de l'atmosphère et de conditionnement des échantillons (ISO 187:1990)

La présente Norme internationale prescrit l'atmosphère normale de conditionnement et d'essai des pâtes, papiers et cartons, ainsi que des méthodes de mesurage de la température et de l'humidité relative. Pour le conditionnement des feuilles préparées en laboratoire conformément à l'ISO 5269-1, l'atmosphère normale est celle qui est définie dans la présente Norme internationale, mais le mode opératoire est différent1).

Papir, karton, lepenka in vlaknine - Standardna atmosfera za kondicioniranje in preskušanje ter postopek za nadzor atmosfere in kondicioniranje vzorcev (ISO 187:1990)

General Information

• Status: Withdrawn
• Publication Date: 29-Sep-1993
• Withdrawal Date: 08-Nov-2022
• ICS: 85.040 - Pulps
• ICS: 85.060 - Paper and board
• Technical Committee: CEN/TC 172 - Pulp, paper and board
• Drafting Committee: CEN/TC 172 - Pulp, paper and board
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 09-Nov-2022
• Ref Project: SIST EN 20187:2000 - Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples (ISO 187:1990)

Relations

• Replaced By: EN ISO 187:2022 - Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples (ISO 187:2022)
• Effective Date: 15-Jan-2020

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Papir, karton, lepenka in vlaknine - Standardna atmosfera za kondicioniranje in preskušanje ter postopek za nadzor atmosfere in kondicioniranje vzorcev (ISO 187:1990)Papier, Pappe und Zellstoff - Normalklima für die Vorbehandlung und Prüfung und Verfahren zur Überwachung des Klimas und der Probenvorbehandlung (ISO 187:1990)Papier, carton et pâtes - Atmosphere normale de conditionnement et d'essai et méthode de surveillance de l'atmosphere et de conditionnement des échantillons (ISO 187:1990)Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples (ISO 187:1990)85.060Papir, karton in lepenkaPaper and board85.040VlakninePulpsICS:Ta slovenski standard je istoveten z:EN 20187:1993SIST EN 20187:2000en01-april-2000SIST EN 20187:2000SLOVENSKI
STANDARD



SIST EN 20187:2000



SIST EN 20187:2000



SIST EN 20187:2000



INTERNATIONAL STANDARD Second edition 1990-l 2-01 Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples Papier, carton et pstes - Atmosphere normale de conditionnement et d’essai et mgfhode de surveillance de I’atmosph&e et de conditionnement des &hantillons Reference number IS0 187: 1990(E) SIST EN 20187:2000



IS0 187:1990(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, 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. DrafI International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 187 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps. This second edition cancels and replaces the first edition (IS0 187: 1977), which has been technically revised. Annex A forms an integral part of this International Standard. Annexes B and C are for information only. 0 IS0 1990 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 Organizatiori for Standardization Case Postale 56 l CH-121-l Geneve 20 l Switzerland Printed in Switzerland ii SIST EN 20187:2000



IS0 187:1990(E) Introduction The physical properties of paper are affected materially by its moisture content which, in turn, is dependent on the humidity of the surrounding atmosphere. In order that tests may be made on paper in a defined physical state, it is brought into equilibrium with an atmosphere of standardized temperature and relative humidity, and tested in that at- mosphere. The moisture content of a given paper in equilibrium with a given at- mosphere varies according to whether the equilibrium is reached by sorption or by desorption of moisture. This hysteresis influences those physical properties that change with moisture content. Unless otherwise specified the equilibrium condition should be attained by the sorptive process. For a nu mber corn mon use: of years three standard test atmospheres have been in 20 W65 % r-h.; 23 “C/50 % r.h. and 27 “C/65 Y!./o r.h. At the time of publication of this revision of IS0 187: 1977 the atmos- phere 23 V50 % r-h. is used almost exclusively in most countries and after 1 January 1993 is to be considered the IS0 standard test atmos- phere for testing of pulp, paper and board. However, the 23 “C/50 % r.h. atmosphere is difficult to attain in some of the countries located in tropical zones, and in such countries the 27 “C/65 O/o rh. atmosphere is permitted. Until 1 January 1993 the 20 “C/65 O/o r.h. atmosphere is ac- ceptable as a standard test atmosphere. . . . III SIST EN 20187:2000



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INTERNATIONAL STANDARD IS0 187:1990(E) Paper, board and pulps - Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples 1 Scope This International Standard specifies the standard atmosphere for conditioning, and for testing pulp, paper and board, and also the procedures for measuring the temperature and relative humidity. For the conditioning of laboratory prepared handsheets in accordance with IS0 5269-1
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