Tests for mechanical and physical properties of aggregates - Part 7: Determination of the particle density of filler - Pyknometer method

This document specifies the reference method used for type testing and in cases of dispute for the determination of the particle density of filler by means of a pyknometer. For other purposes, in particular factory production control, other methods can be used provided that an appropriate working relationship with the reference method has been established.
NOTE   Methods for determination of particle density of aggregates are specified in EN 1097 6.
Annex A specifies the procedure for determination of the pyknometer volume. Annex B specifies the procedure for determination of the density of the liquid used to determine the particle density of the filler. Annexes A and B are normative.
WARNING — The use of this part of EN 1097 can involve hazardous materials, operations and equipment (such as liquids, dust, noise and heavy lifts). It does not purport to address all of the safety or environmental problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel and the environment prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.

Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen - Teil 7: Bestimmung der Rohdichte von Füllern - Pyknometer-Verfahren

Dieses Dokument legt das Referenzverfahren für die Typprüfung und in Streitfällen für die Bestimmung der Rohdichte von Füllern mit dem Pyknometer fest. Für andere Zwecke, insbesondere die werkseigene Produktionskontrolle, können andere Verfahren angewendet werden, falls eine geeignete Arbeitsbeziehung mit dem Referenzverfahren nachgewiesen wurde.
ANMERKUNG   Verfahren zur Bestimmung der Rohdichte von Gesteinskörnungen sind in EN 1097 6 festgelegt.
Anhang A legt das Verfahren zur Bestimmung des Pyknometervolumens fest. Anhang B legt das Verfahren zur Bestimmung der Dichte der bei der Ermittlung der Rohdichte des Füllers benutzten Prüfflüssigkeit fest. Anhang A und Anhang B sind normativ.
WARNUNG — Die Durchführung der in diesem Teil von EN 1097 beschriebenen Referenzverfahren kann gefährliche Materialien, Verfahrensschritte oder Gerätschaften (wie Flüssigkeiten, Staub, Lärm und Hebezeuge) umfassen. Dieses Dokument erhebt nicht den Anspruch, auf alle Sicherheits- oder Umweltprobleme hinzuweisen, die mit seiner Anwendung verbunden sind. Es liegt in der Verantwortung des Anwenders dieses Dokuments, vor der Anwendung geeignete Maßnahmen für die Sicherheit und den Gesundheitsschutz des Personals sowie für den Umweltschutz zu ergreifen und dafür Sorge zu tragen, dass behördliche und gesetzliche Maßnahmen eingehalten werden.

Essais pour déterminer les caractéristiques mécaniques et physiques des granulats - Partie 7 : Détermination de la masse volumique réelle du filler - Méthode au pycnomètre

Le présent document spécifie la méthode de référence utilisée pour les essais de type et, en cas de conflit, pour la détermination de la masse volumique réelle du filler au moyen d’un pycnomètre. Pour d'autres objectifs, en particulier dans le cadre de la maitrise de la production des granulats, d'autres méthodes peuvent être employées si une corrélation appropriée avec la méthode de référence a été établie.
NOTE   Les méthodes de détermination de la masse volumique des granulats sont spécifiées dans la norme EN 1097 6.
L’annexe A spécifie la procédure pour la détermination du volume du pycnomètre. L’annexe B spécifie la procédure pour la détermination de la masse volumique du liquide utilisé pour déterminer la masse volumique réelle du filler. Les annexes A et B sont normatives.
AVERTISSEMENT - L'utilisation de cette partie de la norme EN 1097 peut impliquer des matériaux, des opérations et des équipements dangereux (tels que des liquides, de la poussière, du bruit et des masses lourdes à lever). Elle ne prétend pas traiter de tous les problèmes de sécurité ou d'environnement liés à son utilisation. Il est de la responsabilité des utilisateurs de ce document de prendre les mesures appropriées pour assurer la sécurité et la santé du personnel et de l'environnement avant l'application de la norme, et de satisfaire aux exigences légales et réglementaires à cet effet.

Preskusi mehanskih in fizikalnih lastnosti agregatov - 7. del: Določevanje prostorninske mase zrn kamene moke - Postopek s piknometrom

Ta dokument določa referenčno metodo, ki se uporablja za tipsko preskušanje in v primeru spora za določevanje prostorninske mase zrn kamene moke s piknometrom. Za druge namene, zlasti za nadzor proizvodnje v obratu, je mogoče uporabiti druge metode, če obstaja primerna delovna povezava z referenčno metodo.
OPOMBA:   Metode določanja prostorninske mase agregatov so določene v standardu EN 1097-6.
Standard vključuje dodatke, ki določajo postopke za umerjanje piknometra (dodatek A) in določanje gostote tekočine, uporabljene za določanje prostorninske mase zrn kamene moke (dodatek B).
Dodatek C (informativni) vsebuje podatke o natančnosti.
OPOZORILO: Uporaba tega dela standarda EN 1097 lahko vključuje nevarne materiale, postopke in opremo (na primer tekočine, hrup in dvigovanje težkih bremen). Ni namenjen obravnavi vseh varnostnih ali okoljskih težav, povezanih z njegovo uporabo. Za sprejetje ustreznih ukrepov za zagotavljanje varnosti oziroma zdravja osebja in okolja pred uporabo standarda ter izpolnjevanje zakonskih in regulativnih zahtev za ta namen so odgovorni uporabniki tega dokumenta.

General Information

Status
Published
Publication Date
25-Oct-2022
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
26-Oct-2022
Due Date
30-Sep-2022
Completion Date
26-Oct-2022

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SLOVENSKI STANDARD
SIST EN 1097-7:2023
01-februar-2023
Nadomešča:
SIST EN 1097-7:2008
Preskusi mehanskih in fizikalnih lastnosti agregatov - 7. del: Določevanje
prostorninske mase zrn kamene moke - Postopek s piknometrom
Tests for mechanical and physical properties of aggregates - Part 7: Determination of the
particle density of filler - Pyknometer method
Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen
- Teil 7: Bestimmung der Rohdichte von Füllern - Pyknometer-Verfahren
Essais pour déterminer les caractéristiques mécaniques et physiques des granulats -
Partie 7 : Détermination de la masse volumique réelle du filler - Méthode au pycnomètre
Ta slovenski standard je istoveten z: EN 1097-7:2022
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
SIST EN 1097-7:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 1097-7:2023

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SIST EN 1097-7:2023


EN 1097-7
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2022
EUROPÄISCHE NORM
ICS 91.100.15 Supersedes EN 1097-7:2008
English Version

Tests for mechanical and physical properties of aggregates
- Part 7: Determination of the particle density of filler -
Pyknometer method
Essais pour déterminer les caractéristiques Prüfverfahren für mechanische und physikalische
mécaniques et physiques des granulats - Partie 7 : Eigenschaften von Gesteinskörnungen - Teil 7:
Détermination de la masse volumique réelle du filler - Bestimmung der Rohdichte von Füllern - Pyknometer-
Méthode au pycnomètre Verfahren
This European Standard was approved by CEN on 26 September 2022.

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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1097-7:2022 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
SIST EN 1097-7:2023
EN 1097-7:2022 (E)
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 6
5 Materials . 6
6 Apparatus . 7
7 Preparation of test portion . 7
8 Procedure. 8
9 Calculation and expression of results . 8
10 Test report . 9
10.1 Required data . 9
10.2 Optional data . 9
Annex A (normative) Determination of the pyknometer volume .10
A.1 General .10
A.2 Procedure.10
Annex B (normative) Determination of the density of the liquid used to determine the
particle density of the filler .12
B.1 General .12
B.2 Procedure.12
Bibliography .14

2

---------------------- Page: 4 ----------------------
SIST EN 1097-7:2023
EN 1097-7:2022 (E)
European foreword
This document (EN 1097-7:2022) has been prepared by Technical Committee CEN/TC 154 “Aggregates”,
the secretariat of which is held by BSI.
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 April 2023, and conflicting national standards shall be
withdrawn at the latest by April 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1097-7:2008.
This document has been prepared under a Standardization Request given to CEN by the European
Commission and the European Free Trade Association.
In comparison with the previous edition EN 1097-7:2008, the following technical modifications have
been made:
a) in the Scope, a reference to methods for determination of particle density of aggregates has been
added;
b) Clause 3 “Terms and definitions” has been clarified to correspond with definitions in EN 1097-6. The
definition of size fraction d /D has been added;
i i
c) in Clause 5 “Materials”, low viscosity white mineral oils have been added among the examples of
suitable liquids given in the note;
d) in 6.3, the required accuracy of the water bath temperature has been reduced from (25,0 ± 0,1) °C to
either (25,0 ± 3,0) °C or (25,0 ± 0,5) °C depending on the liquid used. Texts in Clause 8, A.2.5 and B.2.4
have been revised accordingly;
e) the required accuracy of the balance for the pyknometer volume determination has been reduced
from 0,000 1 g to 0,001 g, since water is always used for this purpose. The texts in 6.4, 6.5 and A.2.2
have been revised accordingly;
f) in Clauses 7 and 8, the required masses of the test portion and the test specimens have been revised.
The possibility to vary the filler amount, and thus the ratio of filler and liquid, has been added in
order to reduce the influence of the temperature on the density of the pyknometer liquid;
g) the required number of test specimens has been reduced from three to two, provided that the two
3
test results differ less than 0,025 Mg/m . The texts in Clauses 7, 8 and 9 have been revised
accordingly;
h) in Clause 8 “Procedure”, the note about adding liquid carefully has been transformed into main text;
i) in Clause 10 “Test report”, the density of the liquid used for the determination is moved from
Required data to Optional data;
j) the title of Annex A has been revised to “Determination of the pyknometer volume” since calibration
was not the correct term. All texts referring to calibration have been corrected accordingly. A new
paragraph (A.2.4) has been added to describe the evacuation of the pyknometer by means of vacuum;
3

---------------------- Page: 5 ----------------------
SIST EN 1097-7:2023
EN 1097-7:2022 (E)
k) the title of Annex B has been shortened and B.1 has been clarified regarding the use of Annex B;
l) Annex C has been removed since the precision data given cannot be tracked down any longer.
Consequently, the note about precision statement in Clause 9 has been revised;
m) in the Bibliography, EN 1097-6 and EN 1936 have been added and the national standards have been
deleted.
In addition, the whole document has been updated and the “Principle”, “Preparation of test portion”,
“Procedure” and Annex A have been clarified.
This document forms part of a series of tests for mechanical and physical properties of aggregates. Test
methods for other properties of aggregates are covered by the following European standards:
— EN 932 (all parts), Tests for general properties of aggregates
— EN 933 (all parts), Tests for geometrical properties of aggregates
— EN 1367 (all parts), Tests for thermal and weathering properties of aggregates
— EN 1744 (all parts), Tests for chemical properties of aggregates
— EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures
The other parts of the EN 1097 series include:
— Part 1: Determination of the resistance to wear (micro-Deval)
— Part 2: Methods for the determination of resistance to fragmentation
— Part 3: Determination of loose bulk density and voids
— Part 4: Determination of the voids of dry compacted filler
— Part 5: Determination of the water content by drying in a ventilated oven
— Part 6: Determination of particle density and water absorption
— Part 8: Determination of the polished stone value
— Part 9: Determination of the resistance to wear by abrasion from studded tyres - Nordic test
— Part 10: Determination of water suction height
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
4

---------------------- Page: 6 ----------------------
SIST EN 1097-7:2023
EN 1097-7:2022 (E)
1 Scope
This document specifies the reference method used for type testing and in cases of dispute for the
determination of the particle density of filler by means of a pyknometer. For other purposes, in particular
factory production control, other methods can be used provided that an appropriate working relationship
with the reference method has been established.
NOTE Methods for determination of particle density of aggregates are specified in EN 1097-6.
Annex A specifies the procedure for determination of the pyknometer volume. Annex B specifies the
procedure for determination of the density of the liquid used to determine the particle density of the
filler. Annexes A and B are normative.
WARNING — The use of this part of EN 1097 can involve hazardous materials, operations and equipment
(such as liquids, dust, noise and heavy lifts). It does not purport to address all of the safety or
environmental problems associated with its use. It is the responsibility of users of this document to take
appropriate measures to ensure the safety and health of personnel and the environment prior to
application of the standard, and fulfil statutory and regulatory requirements for this purpose.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 932-2:1999, Tests for general properties of aggregates - Part 2: Methods for reducing laboratory
samples
EN 932-5, Tests for general properties of aggregates - Part 5: Common equipment and calibration
ISO 3507, Laboratory glassware — Pyknometers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at https://www.electropedia.org/
3.1
laboratory sample
sample intended for laboratory testing
3.2
test portion
sample used as a whole in a single test
3.3
...

SLOVENSKI STANDARD
oSIST prEN 1097-7:2021
01-januar-2021
Preskusi mehanskih in fizikalnih lastnosti agregatov - 7. del: Določevanje
prostorninske mase zrn kamene moke - Postopek s piknometrom
Tests for mechanical and physical properties of aggregates - Part 7: Determination of the
particle density of filler - Pyknometer method
Prüfverfahren für mechanische und physikalische Eigenschaften von Gesteinskörnungen
- Teil 7: Bestimmung der Rohdichte von Füller - Pyknometer-Verfahren
Essais pour déterminer les caractéristiques mécaniques et physiques des granulats -
Partie 7: Détermination de la masse volumique réelle du filler - Méthode au pycnomètre
Ta slovenski standard je istoveten z: prEN 1097-7
ICS:
91.100.15 Mineralni materiali in izdelki Mineral materials and
products
oSIST prEN 1097-7:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 1097-7:2021

---------------------- Page: 2 ----------------------
oSIST prEN 1097-7:2021


DRAFT
EUROPEAN STANDARD
prEN 1097-7
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2020
ICS 91.100.15 Will supersede EN 1097-7:2008
English Version

Tests for mechanical and physical properties of aggregates
- Part 7: Determination of the particle density of filler -
Pyknometer method
Essais pour déterminer les caractéristiques Prüfverfahren für mechanische und physikalische
mécaniques et physiques des granulats - Partie 7: Eigenschaften von Gesteinskörnungen - Teil 7:
Détermination de la masse volumique réelle du filler - Bestimmung der Rohdichte von Füller - Pyknometer-
Méthode au pycnomètre Verfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 154.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1097-7:2020 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 1097-7:2021
prEN 1097-7:2020 (E)
Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 6
5 Materials . 6
6 Apparatus . 7
7 Preparation of test portion . 7
8 Procedure . 7
9 Calculation and expression of results . 8
10 Test report . 9
Annex A (normative) Calibration of the pyknometer .10
A.1 General .10
A.2 Procedure .10
Annex B (normative) Procedure for the determination of the density of the liquid
used to determine the particle density of the filler .11
B.1 General .11
B.2 Procedure .11
Annex C (informative) Precision .12
Bibliography .13

2

---------------------- Page: 4 ----------------------
oSIST prEN 1097-7:2021
prEN 1097-7:2020 (E)
European foreword
This document (prEN 1097-7:2020) has been prepared by Technical Committee CEN/TC 154
“Aggregates”, the secretariat of which is held by BSI.
This document is currently submitted to CEN Enquiry.
This document will supersede EN 1097-7:2008.
In comparison with the previous edition, the following technical modifications have been made:
a) Precision of the water bath temperature has been revised from (25,0 ± 0,1) °C to (25,0 ± 3,0)
°C or (25,0 ± 0,5) °C depending on the liquid used. As a consequence, texts in Clauses 6.3, 8,
A.2.4 and B.2.4 have been revised.
b) In the Scope, a reference to methods for determination of particle density of aggregates has
been added.
c) The “European foreword”, “Normative references”, “Terms and definitions” and “Test report”
clauses are updated.
d) Terms and definitions have been clarified to correspond with definitions in EN 1097-6.
e) The “Principle”, “Preparation of test portion” and “Procedure” clauses have been clarified.
f) In the “Materials” clause, low viscosity white mineral oils have been added among the
examples given in the note.
g) In “Procedure”, the note about adding liquid carefully has been transformed into main text.
h) In the Bibliography, EN 1097-6 has been added.
In this document, the Annexes A and B are normative and the Annex C is informative.
This document forms part of a series of tests for mechanical and physical properties of aggregates.
Test methods for other properties of aggregates are covered by the following European Standards:
— EN 932 (all parts), Tests for general properties of aggregates
— EN 933 (all parts), Tests for geometrical properties of aggregates
— EN 1367 (all parts), Tests for thermal and weathering properties of aggregates
— EN 1744 (all parts), Tests for chemical properties of aggregates
— EN 13179 (all parts), Tests for filler aggregate used in bituminous mixtures
The other parts of EN 1097 include:
— Part 1: Determination of the resistance to wear (micro-Deval)
— Part 2: Methods for the determination of resistance to fragmentation
— Part 3: Determination of loose bulk density and voids
3

---------------------- Page: 5 ----------------------
oSIST prEN 1097-7:2021
prEN 1097-7:2020 (E)
— Part 4: Determination of the voids of dry compacted filler
— Part 5: Determination of the water content by drying in a ventilated oven
— Part 6: Determination of particle density and water absorption
— Part 8: Determination of the polished stone value
— Part 9: Determination of the resistance to wear by abrasion from studded tyres – Nordic test
— Part 10: Determination of water suction height
4

---------------------- Page: 6 ----------------------
oSIST prEN 1097-7:2021
prEN 1097-7:2020 (E)
1 Scope
This document specifies the reference method used for type testing and in cases of dispute for the
determination of the particle density of filler by means of a pyknometer. For other purposes, in
particular factory production control, other methods can be used provided that an appropriate
working relationship with the reference method has been established.
NOTE Methods for determination of particle density of aggregates are specified in EN 1097-6.
Annexes are included that specify the procedures for calibration of the pyknometer (Annex A) and
determination of the density of the liquid used to determine the particle density of the filler
(Annex B).
Annex C (informative) contains precision data.
WARNING – The use of this part of EN 1097 can involve hazardous materials, operations and
equipment (such as liquids, dust, noise and heavy lifts). It does not purport to address all of the
safety or environmental problems associated with its use. It is the responsibility of users of this
document to take appropriate measures to ensure the safety and health of personnel and the
environment prior to application of the standard, and fulfil statutory and regulatory requirements
for this purpose.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN 932-2:1999, Tests for general properties of aggregates - Part 2: Methods for reducing laboratory
samples
EN 932-5, Tests for general properties of aggregates - Part 5: Common equipment and calibration
ISO 3507, Laboratory glassware - Pyknometers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
laboratory sample
sample intended for laboratory testing
3.2
test portion
sample used as a whole in a single test
5

---------------------- Page: 7 ----------------------
oSIST prEN 1097-7:2021
prEN 1097-7:2020 (E)
3.3
test specimen
sample used in a single determination when a test method requires more than one determination
of a property
3.4
constant mass
mass determined by successive weighings after drying performed at least 1 h apart and not
differing by more than 0,1 %
Note 1 to entry: In many cases constant mass can be achieved after a test portion has been dried for a
pre-determined period in a specified oven (see 6.6) at (110 ± 5) °C. Test laboratories can determine the time
required to achieve constant mass for specific types and sizes of sample dependent upon the drying capacity
of the oven used.
3.5
particle density of filler
ρ
r
ratio obtained by dividing the pre-dried mass of a test specimen of filler by the volume it occupies
in a liquid, including the volume of any internal sealed voids but excluding the volume of liquid in
any liquid accessible voids
Note 1 to entry: The definition corresponds to the de
...

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