Laboratory glassware - One-mark volumetric flasks (ISO 1042:1998)

Requirements for a series of one-mark volumetric flasks, suitable for the preparation of standard solutions.

Laborgeräte aus Glas - Meßkolben (ISO 1042:1998)

Diese Internationale Norm legt Anforderungen für eine international akzeptierte Reihe von Meßkolben fest, die für allgemeinen Laborgebrauch geeignet sind. Die Anforderungen dieser Internationalen Norm sind in Übereinstimmung mit ISO 384 und der OIML-Empfehlung Nr.4.

Verrerie de laboratoire - Fioles jaugées à un trait (ISO 1042:1998)

La présente Norme internationale spécifie les exigences d'une série de fioles jaugées à un trait, acceptable sur le plan international et satisfaisant aux besoins généraux des laboratoires.Les spécifications de la présente Norme internationale sont conformes à l'ISO 384 ainsi qu'à la Recommandation internationale N° 4 de l'OIML.

Laboratorijska steklovina - Volumetrijske steklenice z eno oznako (ISO 1042:1998)

General Information

Status
Published
Publication Date
18-May-1999
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
15-Dec-2007
Completion Date
15-Dec-2007

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 1042:2000
01-junij-2000
1DGRPHãþD
SIST ISO 1042:1995
SIST ISO 1042:1998
Laboratorijska steklovina - Volumetrijske steklenice z eno oznako (ISO 1042:1998)
Laboratory glassware - One-mark volumetric flasks (ISO 1042:1998)
Laborgeräte aus Glas - Meßkolben (ISO 1042:1998)
Verrerie de laboratoire - Fioles jaugées a un trait (ISO 1042:1998)
Ta slovenski standard je istoveten z: EN ISO 1042:1999
ICS:
17.060 Merjenje prostornine, mase, Measurement of volume,
gostote, viskoznosti mass, density, viscosity
71.040.20 Laboratorijska posoda in Laboratory ware and related
aparati apparatus
SIST EN ISO 1042:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 1042:2000

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SIST EN ISO 1042:2000

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SIST EN ISO 1042:2000

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SIST EN ISO 1042:2000
INTERNATIONAL ISO
STANDARD 1042
Fourth edition
1998-07-01
Laboratory glassware — One-mark
volumetric flasks
Verrerie de laboratoire — Fioles jaugées à un trait
A
Reference number
ISO 1042:1998(E)

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SIST EN ISO 1042:2000
ISO 1042:1998(E)
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.
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.
ISO 1042 was developed by Technical Committee ISO/TC 48, Laboratory
glassware and related apparatus, Subcommittee SC 1, Volumetric
instruments.
This fourth edition cancels and replaces the third edition (ISO 1042:1983)
by incorporating the following changes:
a) flasks with capacities of 1, 2, 20 and 5 000 ml have been added;
b) flasks with conical body shape have been added;
c) flasks with wider neck have been added;
d) material has been more precisely defined and a test method for
capacity introduced;
e) sizes of ground joints have been added in tables 1 and 2.
©  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 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 1042:2000
©
ISO ISO 1042:1998(E)
Introduction
Volumetric flasks together with analytical balances are the fundamental
tools for the preparation of volumetric standard solutions – the basis of
chemical analysis. The design of narrow-necked class A volumetric flasks
has been optimized to achieve the fewest possible acceptable errors.
With the increasing popularity of piston-operated pipettors, there is market
pressure for the manufacture of volumetric flasks with wider necks so that
pipettor tips may be inserted to remove solution directly. Wide-necked
flasks will of necessity be of lower accuracy than the corresponding
capacities of narrow-necked flasks and the insertion of any extraneous
device may introduce other errors.
It is therefore recommended that narrow-necked class A volumetric flasks
are used for the production of standard solutions and where necessary, a
suitable quantity should be poured into an intermediate vessel into which
the pipettor tip may be introduced.
In accordance with good laboratory practice, only narrow-necked class A
volumetric flasks conforming to this International Standard should be used
for precise analytical purposes.
iii

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SIST EN ISO 1042:2000

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SIST EN ISO 1042:2000
©
INTERNATIONAL STANDARD  ISO ISO 1042:1998(E)
Laboratory glassware — One-mark volumetric flasks
1  Scope
This International Standard specifies requirements for an internationally acceptable series of one-mark volumetric
flasks, suitable for general laboratory purposes.
The specifications in this International Standard a
...

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