EN ISO 1183-2:2004
(Main)Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method (ISO 1183-2:2004)
Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method (ISO 1183-2:2004)
ISO 1183-2:2004 specifies a gradient column method for the determination of the density of non-cellular moulded or extruded plastics in void-free form. Density gradient columns are columns containing a mixture of two liquids, the density in the column increasing uniformly from top to bottom.
Kunststoffe - Verfahren zur Bestimmung der Dichte von nicht verschäumten Kunststoffen - Teil 2: Verfahren mit Dichtegradientensäule (ISO 1183-2:2004)
Dieser Teil von ISO 1183 legt ein Verfahren mit Dichtegradientensäule für die Bestimmung der Dichte von nicht verschäumten, blasenfreien geformten oder extrudierten Kunststoffen fest. Dichtegradientensäulen sind Säulen, die ein Gemisch von zwei Flüssigkeiten enthalten und in denen die Dichte gleichmäßig vom oberen Teil der Säule zum Boden zunimmt.
ANMERKUNG Dieser Teil von ISO 1183 gilt für Granulate, sofern sie blasenfrei sind. Die Dichte wird häufig verwendet, um die Veränderungen in der physikalischen Struktur oder Zusammensetzung von Kunstwerkstoffmaterialien zu verfolgen. Die Dichte kann auch bei der Beurteilung der Einheitlichkeit von Proben oder Probekörpern von Nutzen sein. Häufig wird die Dichte von Kunststoffen von der Wahl des Verfahrens zur Herstellung der Probekörper abhängen. Ist dies der Fall, müssen die genauen Einzelheiten zum Herstellungsverfahren der Probekörper in die entsprechende Materialspezifikation aufgenommen werden.
Plastiques - Méthodes de détermination de la masse volumique des plastiques non alvéolaires - Partie 2: Méthode de la colonne à gradient de masse volumique (ISO 1183-2:2004)
L'SO 1183-2:2004 spécifie une méthode qui utilise une colonne à gradient pour déterminer la masse volumique des plastiques non alvéolaires, moulés ou extrudés, exempts de vides. Les colonnes à gradient de masse volumique contiennent un mélange de deux liquides, dont la masse volumique augmente uniformément du haut de la colonne vers le bas.
Polimerni materiali - Metode za določanje gostote nepenjenih polimernih materialov - 2. del: Kolonska metoda na osnovi gradienta gostote (ISO 1183-2:2004)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2004
3ROLPHUQLPDWHULDOL0HWRGH]DGRORþDQMHJRVWRWHQHSHQMHQLKSROLPHUQLK
PDWHULDORYGHO .RORQVNDPHWRGDQDRVQRYLJUDGLHQWDJRVWRWH ,62
Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density
gradient column method (ISO 1183-2:2004)
Kunststoffe - Verfahren zur Bestimmung der Dichte von nicht verschäumten Kunststoffen
- Teil 2: Verfahren mit Dichtegradientensäule (ISO 1183-2:2004)
Plastiques - Méthodes de détermination de la masse volumique des plastiques non
alvéolaires - Partie 2: Méthode de la colonne a gradient de masse volumique (ISO 1183-
2:2004)
Ta slovenski standard je istoveten z: EN ISO 1183-2:2004
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 1183-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2004
ICS 83.080.01
English version
Plastics - Methods for determining the density of non-cellular
plastics - Part 2: Density gradient column method (ISO 1183-
2:2004)
Plastiques - Méthodes de détermination de la masse Kunststoffe - Verfahren zur Bestimmung der Dichte von
volumique des plastiques non alvéolaires - Partie 2: nicht verschäumten Kunststoffen - Teil 2: Verfahren mit
Méthode de la colonne à gradient de masse volumique Dichtegradientensäule (ISO 1183-2:2004)
(ISO 1183-2:2004)
This European Standard was approved by CEN on 22 June 2004.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
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Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1183-2:2004: E
worldwide for CEN national Members.
Foreword
This document (EN ISO 1183-2:2004) has been prepared by Technical Committee ISO/TC 61
"Plastics" in collaborationwith Technical Committee CEN/TC 249 "Plastics", the secretariat of
which is held by IBN.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by January 2005, and conflicting national
standards shall be withdrawn at the latest by January 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 1183-2:2004 has been approved by CEN as EN ISO 1183-2 2004 without any
modifications.
INTERNATIONAL ISO
STANDARD 1183-2
First edition
2004-07-15
Plastics — Methods for determining the
density of non-cellular plastics —
Part 2:
Density gradient column method
Plastiques — Méthodes de détermination de la masse volumique des
plastiques non alvéolaires —
Partie 2: Méthode de la colonne à gradient de masse volumique
Reference number
ISO 1183-2:2004(E)
©
ISO 2004
ISO 1183-2:2004(E)
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ii © ISO 2004 – All rights reserved
ISO 1183-2:2004(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 1
4 Conditioning . 2
5 Method. 2
6 Test report. 4
Annex A (informative) Liquid systems suitable for density determinations . 6
Annex B (informative) Preparation of density gradient column . 7
ISO 1183-2:2004(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 1183-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical-
chemical properties.
Together with the other parts (see below), this part of ISO 1183 cancels and replaces ISO 1183:1987, which
has been technically revised.
ISO 1183 consists of the following parts, under the general title Plastics — Methods for determining the
density of non-cellular plastics:
Part 1: Immersion method, liquid pyknometer method and titration method
Part 2: Density gradient column method
Part 3: Gas pyknometer method
iv © ISO 2004 – All rights reserved
INTERNATIONAL STANDARD ISO 1183-2:2004(E)
Plastics — Methods for determining the density of non-cellular
plastics —
Part 2:
Density gradient column method
WARNING — The use of this part of ISO 1183 may involve hazardous materials, operations or
equipment. This part of ISO 1183 does not purport to address all of the safety problems, if any,
associated with its use. It is the responsibility of the user of this part of ISO 1183 to establish
appropriate health and safety practices and to determine the applicability of any regulatory limitations
prior to use.
1 Scope
This part of ISO 1183 specifies a gradient column method for the determination of the density of non-cellular
moulded or extruded plastics in void-free form. Density gradient columns are columns containing a mixture of
two liquids, the density in the column increasing uniformly from top to bottom.
NOTE This part of ISO 1183 is applicable to pellets as long as they are void-free. Density is frequently used to follow
variations in physical structure or composition of plastic materials. Density may also be useful in assessing the uniformity
of samples or specimens. Often the density of plastic materials will depend upon the choice of specimen preparation
method. When this is the case, precise details of the specimen preparation method will have to be included in the
appropriate material specification.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 31-3, Quantities and units — Part 3: Mechanics
ISO 291, Plastics — Standard atmospheres for conditioning and testing
ISO 1183-1:2004, Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion
method, liquid pyknometer method and titration method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
density
ρ
3 3 3
ratio of the mass m of a sample to its volume V (at the temperature t) expressed in kg/m , kg/dm (g/cm ), or
kg/l (g/ml)
NOTE The following terms, based upon ISO 31-3, are given here for clarification.
ISO 1183-2:2004(E)
Table 1 — Density terms
Term Symbol Formulation Units
kg/m
3 3
Density ρ m/V kg/dm (g/cm )
kg/l (g/ml)
m /kg
3 3
Specific volume ν V/m (= 1/ρ) dm /kg (cm /g)
l/kg (ml/g)
4 Conditioning
Conditioning and testing shall be in accordance with ISO 291 or the appropriate material standard. In general,
conditioning specimens to constant temperature is not required, because the determination itself brings the
specimen to the constant temperature of the test.
Specimens which change in density during the test to such an extent that the change is greater than the
required accuracy of the density determination shall be conditioned prior to measurement in accordance with
the applicable material specification. When changes in density with time or atmospheric conditions are the
primary purpose of the measurements, the specimens shall be conditioned as described in the material
specification and, if no material specification exists, then as agreed upon by the interested parties.
5 Method
5.1 Apparatus
5.1.1 Density gradient column, consisting of a suitable graduated column, not less than 40 mm in
diameter, with a cover. The height of the column shall be compatible with the accuracy required. A graduation
interval of 1 mm for the scale on the column is normal.
5.1.2 Liquid bath, capable of being thermostatically controlled to within ± 0,1 °C or ± 0,5 °C, depending on
the sensitivity required (see Annex B).
5.1.3 Calibrated glass floats, covering the density range in which measurements are to be made and
approximately evenly distributed throughout this range.
NOTE These may be purchased from an accredited source or prepared as described in 5.4.1.
5.1.4 Balance, accurate to 0,1 mg.
5.1.5 Siphon or pipette assembly, for filling the gradient column (5.1.1), as shown in Figure B.1 or B.2, or
any other suitable device.
5.2 Immersion liquids
Required are two miscible liquids of different densities, freshly distilled in the case of pure liquids. The
densities of various liquids are given in Annex A as a guide.
The liquid with which the specimen comes into contact during the measurement shall have no effect on the
specimen.
Prepare the mixture of liquids as specified in 5.4.1.2.
2 © ISO 2004 – All rights reserved
ISO 1183-2:2004(E)
5.3 Specimens
Specimens shall consist of pieces of the material cut to any convenient shape for ease of identification. The
dimensions of each piece shall be chosen to permit accurate measurement of the position of the centre of the
piece.
When cutting specimens from larger samples, care shall be taken to ensure that the characteristics of the
material are not changed due to excessive heat generation
...
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