ISO 4800:1998
(Main)Laboratory glassware — Separating funnels and dropping funnels
Laboratory glassware — Separating funnels and dropping funnels
This International Standard specifies details of an internationally acceptable series of glass separating funnels and dropping funnels suitable for general use in laboratories.
Verrerie de laboratoire — Ampoules à décanter et ampoules à introduire
Laboratorijska steklovina - Lijločniki in birete
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Verrerie de laboratoire -- Ampoules à décanter et ampoules à introduireLaboratory glassware -- Separating funnels and dropping funnels71.040.20Laboratorijska posoda in aparatiLaboratory ware and related apparatusICS:Ta slovenski standard je istoveten z:ISO 4800:1998SIST ISO 4800:2002en01-november-2002SIST ISO 4800:2002SLOVENSKI
STANDARDSIST ISO 4800:19951DGRPHãþD
AReference numberISO 4800:1998(E)INTERNATIONALSTANDARDISO4800Second edition1998-12-15Laboratory glassware — Separating funnelsand dropping funnelsVerrerie de laboratoire — Ampoules à décanter et ampoules à introduireSIST ISO 4800:2002
ISO 1998All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronicor mechanical, including photocopying and microfilm, 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 worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.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 ISO 4800 was developed by Technical Committee ISO/TC 48, Laboratory glassware andrelated apparatus, Subcommittee SC 2, General laboratory glassware (other than measuring).This second edition cancels and replaces the first edition (ISO 4800:1977) by incorporating the following changes:a) dimensions and tolerances have been brought up to date;b) materials have been modified according to ISO 3585;c) separating funnels type 2 (pear-shaped) have been modified;d) separating funnels type 3 (Gilson type) have been cancelled.A bibliography lists additional ISO standards for other general-purpose laboratory glassware.SIST ISO 4800:2002
© ISOISO 4800:1998(E)iiiIntroductionSeparating funnels are used in laboratories for liquid/liquid extractions and they are intended to facilitate theseparation into layers of two immiscible liquids of different density.Dropping funnels have a cylindrical body and are used for adding reagent solutions to a reaction vessel. They are,therefore, often provided with a ground cone at the bottom, for joining to vessels with conical ground necks.SIST ISO 4800:2002
INTERNATIONAL STANDARD
© ISOISO 4800:1998(E)1Laboratory glassware — Separating funnels and droppingfunnels1 ScopeThis International Standard specifies details of an internationally acceptable series of glass separating funnels anddropping funnels suitable for general use in laboratories.2 Normative referencesThe following normative documents contain provisions which, through reference in this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply. However, parties to agreements based on this International Standard are encouraged toinvestigate the possibility of applying the most recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of currently valid International Standards.ISO 383, Laboratory glassware — Interchangeable conical ground joints.ISO 384, Laboratory glassware — Principles of design and construction of volumetric glassware.ISO 3585, Borosilicate glass 3.3 — Properties.ISO 4803, Laboratory glassware — Borosilicate glass tubing.ISO 4785, Laboratory glassware — Straight-bore glass stopcocks for general purposes.3 Types and sizesFour types of funnels are specified, of the following sizes:type 1: separating funnel (conical) (see 7.1), nominal capacity (in millilitres)50 - 100 - 250 - 500 - 1 000 and 2 000;type 2: separating funnel (pear-shaped) (see 7.2), nominal capacity (in millilitres)50 - 100 - 250 - 500 - 1 000 and 2 000;type 3: dropping funnel (cylindrical) (see 7.3), nominal capacity (in millilitres)50 - 100 - 250 - 500 and 1 000;type 4: dropping funnel, graduated (cylindrical) (see 7.4), nominal capacity (in millilitres)50 - 100 - 250 - 500 and 1 000.SIST ISO 4800:2002
Separating funnels and dropping funnels shall be made from borosilicate glass 3.3 in accordance withISO 3585. Internal stress and visible defects in the glass shall be reduced to a level sufficient to minimize thepossibility of fracture due to thermal or mechanical shock.4.2
Stopcock keys of separating funnels and dropping fu
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INTERNATIONAL ISO
STANDARD 4800
Second edition
1998-12-15
Laboratory glassware — Separating funnels
and dropping funnels
Verrerie de laboratoire — Ampoules à décanter et ampoules à introduire
A
Reference number
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO 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. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
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 ISO 4800 was developed by Technical Committee ISO/TC 48, Laboratory glassware and
related apparatus, Subcommittee SC 2, General laboratory glassware (other than measuring).
This second edition cancels and replaces the first edition (ISO 4800:1977) by incorporating the following changes:
a) dimensions and tolerances have been brought up to date;
b) materials have been modified according to ISO 3585;
c) separating funnels type 2 (pear-shaped) have been modified;
d) separating funnels type 3 (Gilson type) have been cancelled.
A bibliography lists additional ISO standards for other general-purpose laboratory glassware.
© ISO 1998
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 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
ii
© ISO
Introduction
Separating funnels are used in laboratories for liquid/liquid extractions and they are intended to facilitate the
separation into layers of two immiscible liquids of different density.
Dropping funnels have a cylindrical body and are used for adding reagent solutions to a reaction vessel. They are,
therefore, often provided with a ground cone at the bottom, for joining to vessels with conical ground necks.
iii
INTERNATIONAL STANDARD © ISO ISO 4800:1998(E)
Laboratory glassware — Separating funnels and dropping
funnels
1 Scope
This International Standard specifies details of an internationally acceptable series of glass separating funnels and
dropping funnels suitable for general use in laboratories.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent editions of the normative documents indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 383, Laboratory glassware — Interchangeable conical ground joints.
ISO 384, Laboratory glassware — Principles of design and construction of volumetric glassware.
ISO 3585, Borosilicate glass 3.3 — Properties.
ISO 4803, Laboratory glassware — Borosilicate glass tubing.
ISO 4785, Laboratory glassware — Straight-bore glass stopcocks for general purposes.
3 Types and sizes
Four types of funnels are specified, of the following sizes:
type 1: separating funnel (conical) (see 7.1), nominal capacity (in millilitres)
50 - 100 - 250 - 500 - 1 000 and 2 000;
type 2: separating funnel (pear-shaped) (see 7.2), nominal capacity (in millilitres)
50 - 100 - 250 - 500 - 1 000 and 2 000;
type 3: dropping funnel (cylindrical) (see 7.3), nominal capacity (in millilitres)
50 - 100 - 250 - 500 and 1 000;
type 4: dropping funnel, graduated (cylindrical) (see 7.4), nominal capacity (in millilitres)
50 - 100 - 250 - 500 and 1 000.
© ISO
If capacities are required other than those listed above, it is recommended that they should be in accordance with
the requirements specified in this International Standard.
4 Materials
4.1 Separating funnels and dropping funnels shall be made from borosilicate glass 3.3 in accordance with
ISO 3585. Internal stress and visible defects in the glass shall be reduced to a level sufficient to minimize the
possibility of fracture due to thermal or mechanical shock.
4.2 Stopcock keys of separating funnels and dropping funnels shall be manufactured from borosilicate glass 3.3 in
accordance with ISO 3585 or shall be manufactured from plastics material with suitable chemical and thermal
characteristics, such as polytetrafluoroethylene. They shall be fitted with a suitable retaining device.
5 Construction
5.1 The construction shall be sufficiently robust to withstand normal usage.
5.2 Dropping funnels, supplied with a ground joint fitted below the stopcock, shall comply with the requirements of
ISO 383.
Dropping funnels with a ground joint below the stopcock can be provided with a pressure-equalizing tube placed at
the back of the funnel when it is in the position of normal use with the handle of the stopcock on the right.
Dropping funnels can be supplied with a Walter drop tip [see Figure 3 d)] to
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