Plastics - Determination of pourability (ISO 6186:1998)

Kunststoffe - Bestimmung der Rieselfähigkeit (ISO 6186:1998)

Diese Internationale Norm beschreibt zwei Methoden A und B für die Bestimmung der Rieselfähigkeit von Kunststoffen in Pulver- und Granulat-Form mittels Messung der Durchflußzeit durch einen Trichter. Von Methode A kann Information bezüglich der Verarbeitbarkeit abgeleitet werden, während Methode B speziell für die Prozesskontrolle während der Herstellung konzipiert ist.

Plastiques - Détermination de l'aptitude à l'écoulement (ISO 6186:1998)

La présente Norme internationale prescrit deux méthodes (méthode A et méthode B) pour la détermination de l'aptitude à l'écoulement des plastiques en poudre et en granulés, par mesurage de la durée d'écoulement à travers un entonnoir. La méthode A permet d'obtenir des informations concernant l'aptitude à la mise en oeuvre, alors que la méthode B est spécifiquement destinée au contrôle des procédés en cours de production.  
NOTE -- Les méthodes décrites ne s'appliquent pas à la totalité des plastiques en poudre et en granulés.

Polimerni materiali – Določevanje časa pretoka prahov in granulatov (ISO 6186:1998)

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoffe - Bestimmung der Rieselfähigkeit (ISO 6186:1998)Plastiques - Détermination de l'aptitude a l'écoulement (ISO 6186:1998)Plastics - Determination of pourability (ISO 6186:1998)83.080.20PlastomeriThermoplastic materialsICS:Ta slovenski standard je istoveten z:EN ISO 6186:1998SIST EN ISO 6186:1999en01-maj-1999SIST EN ISO 6186:1999SLOVENSKI

SIST EN ISO 6186:1999

SIST EN ISO 6186:1999

SIST EN ISO 6186:1999

SIST EN ISO 6186:1999

SIST EN ISO 6186:1999

AReference numberISO 6186:1998(E)INTERNATIONALSTANDARDISO6186Second edition1998-06-15Plastics — Determination of pourabilityPlastiques — Détermination de l'aptitude à l'écoulementSIST EN ISO 6186:1999

ISO 6186:1998(E)©
ISO 1998All rights reserved. Unless otherwise specified, no part of this publication may be reproducedor utilized in any form or by any means, electronic or mechanical, including photocopying andmicrofilm, without permission in writing from the publisher.International Organization for StandardizationCase postale 56 · CH-1211 Genève 20 · SwitzerlandInternetiso@iso.chPrinted in SwitzerlandiiForewordISO (the International Organization for Standardization) is a worldwidefederation of national standards bodies (ISO member bodies). The work ofpreparing International Standards is normally carried out through ISOtechnical committees. Each member body interested in a subject for whicha technical committee has been established has the right to be representedon that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISOcollaborates closely with the International Electrotechnical Commission(IEC) on all matters of electrotechnical standardization.Draft International Standards adopted by the technical committees arecirculated to the member bodies for voting. Publication as an InternationalStandard requires approval by at least 75 % of the member bodies castinga vote.International Standard ISO 6186 was prepared by Technical CommitteeISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials.This second edition cancels and replaces the first edition (ISO 6186:1980),which has been technically revised.SIST EN ISO 6186:1999

© ISOISO 6186:1998(E)1Plastics — Determination of pourability1
ScopeThis International Standard specifies two methods, A and B, for determining the pourability of plastics in powderedand granular form by measuring the flow time through a funnel.From method A, information concerning the processability can be derived, whilst method B is especially designedfor process control during manufacture.NOTE —
The methods described are not applicable to all plastics in powdered and granular form.2
Normative referenceThe following standard contains provisions which, through reference in this text, constitute provisions of thisInternational Standard. At the time of publication, the edition indicated was valid. All standards are subject torevision, and parties to agreements based on this International Standard are encouraged to investigate thepossibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintainregisters of currently valid International Standards.ISO 291:1997, Plastics — Standard atmospheres for conditioning and testing.3
DefinitionFor the purposes of this International Standard, the following definition applies:3.1
flow time: The time taken for a defined mass or volume of test material to flow through a funnel of specifieddimensions. It is indicated in seconds (s).4
PrincipleThe time taken for a defined mass or volume of the test material to flow through a funnel of specified dimensions ismeasured.5
Funnel, of the shape and dimensions shown in figure 1 and in table 1. Simple test funnels or test funnels withexchangeable nozzles may be used. The funnel shall be made of metal, for example stainless steel, and have theinside surface carefully polished. It shall be fitted with a device for closing the outlet (for example a metal plate). Thefunnel shall be earthed to discharge electrostatic charges.SIST EN ISO 6186:1999

ISO 6186:1998(E)© ISO2Dimensions in millimetresa) Simple test funnelb) Test funnel with exchangeable nozzleKey1
Union nut3
NozzleFor values of d and h, see table 1.Figure 1 — Test funnelTable 1 — Funnel dimensionsDimensions in millimetresDiameter of outletdHeight of funnelh10,00 ± 0,0514015,00 ± 0,0513325,00 ± 0,05120SIST EN ISO 6186:1999

© ISOISO 6186:1998(E)35.2
Funnel support, to hold the axis of the funnel vertically, for example a metal ring fixed to a vertical stand.5.3
Stopwatch, accurate to 0,1 s, or an alternative means of measuring time with the same accuracy.5.4
Balance, accurate to 0,1 g.6
ConditioningUnless otherwise specified, materials shall be tested as received under ambient atmospheric conditions. If th

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