Bitumen and bituminous binders - Determination of needle penetration

This European Standard specifies a method for determining the consistency of bitumen and bituminous binders. Normal procedure is described for penetrations up to 330 x 0,1 mm, but for penetrations above this value, up to 500 x 0,1 mm, different operating parameters are necessary.
WARNING - Use of this European Standard may involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this European Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Bitumen und bitumenhaltige Bindemittel - Bestimmung der Nadelpenetration

Diese Europäische Norm legt ein Verfahren zur Bestimmung der Konsistenz von Bitumen und bitumenhaltigen Bindemitteln fest. Das übliche Verfahren ist zur Messung von Penetrationen bis höchstens 330  0,1 mm beschrieben, wenn Penetrationen über diesen Wert bis zu 500  0,1 mm erwartet werden, sind abweichende Prüfparameter erforderlich.
WARNUNG — Die Anwendung dieser Europäischen Norm kann den Umgang mit gefährlichen Substanzen und Ausrüstungsteilen und die Ausführung gefährlicher Arbeitsgänge einschließen. Diese Europäische Norm erhebt nicht den Anspruch, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme anzusprechen. Es liegt in der Verantwortung des Anwenders dieser Europäischen Norm, geeignete Verhaltensregeln für den Arbeits- und Gesundheitsschutz festzulegen und vor der Anwendung zu klären, ob einschränkende Vorschriften zu berücksichtigen sind.

Bitumes et liants bitumineux - Détermination de la pénétrabilité à l'aiguille

La présente Norme européenne définit une méthode pour la détermination de la consistance des bitumes et des liants bitumineux. Le mode opératoire courant s’applique pour les pénétrabilités inférieures ou égales à 330 × 0,1 mm, mais pour les pénétrabilités supérieures à cette valeur, jusqu’à 500  0,1 mm, des conditions opératoires différentes sont prévues.
AVERTISSEMENT — L’utilisation de la présente Norme européenne peut impliquer le recours à des produits, des opérations et des équipements à caractères dangereux. La présente Norme européenne n’est pas censée aborder tous les problèmes de sécurité concernés par son usage. Il est de la responsabilité de l’utilisateur de la présente Norme européenne d’établir des règles de sécurité et d’hygiène appropriées et de déterminer l’applicabilité des restrictions réglementaires avant utilisation.

Bitumen in bitumenska veziva - Določanje penetracije z iglo

Ta evropski standard določa metodo za določanje gostote bitumnov in bitumenskih veziv. Običajni postopek je opisan za penetracije do 330 x 0,1 mm, nad to vrednostjo – do 500 x 0,1 mm – pa so potrebni drugačni obratovalni parametri.
OPOZORILO: Pri uporabi tega evropskega standarda so lahko prisotni nevarni materiali, postopki in oprema. Ta evropski standard ne obravnava vseh varnostnih težav, ki se nanašajo na njegovo uporabo. Za vzpostavitev ustreznih varnostnih in zdravstvenih praks ter za določitev uporabnosti regulativnih omejitev pred uporabo je odgovoren uporabnik tega evropskega standarda.

General Information

Status
Published
Public Enquiry End Date
14-Jan-2014
Publication Date
07-Sep-2015
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Jul-2015
Due Date
13-Sep-2015
Completion Date
08-Sep-2015

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bitumen und bitumenhaltige Bindemittel - Bestimmung der NadelpenetrationBitumes et liants bitumineux - Détermination de la pénétrabilité à l'aiguilleBitumen and bituminous binders - Determination of needle penetration91.100.50Veziva. Tesnilni materialiBinders. Sealing materials75.140Voski, bitumni in drugi naftni proizvodiWaxes, bituminous materials and other petroleum productsICS:Ta slovenski standard je istoveten z:EN 1426:2015SIST EN 1426:2015en,fr,de01-oktober-2015SIST EN 1426:2015SLOVENSKI
STANDARDSIST EN 1426:20071DGRPHãþD



SIST EN 1426:2015



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1426
July 2015 ICS 75.140; 91.100.50 Supersedes EN 1426:2007English Version
Bitumen and bituminous binders - Determination of needle penetration
Bitumes et liants bitumineux - Détermination de la pénétrabilité à l'aiguille
Bitumen und bitumenhaltige Bindemittel - Bestimmung der Nadelpenetration This European Standard was approved by CEN on 27 May 2015.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1426:2015 ESIST EN 1426:2015



EN 1426:2015 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Terms and definitions .4 4 Principle .4 5 Apparatus .5 6 Sampling .7 7 Procedure .8 8 Expression of results .9 9 Precision . 10 10 Test report . 10 Annex A (informative)
Characteristics of thermometers . 13 Bibliography . 14
SIST EN 1426:2015



EN 1426:2015 (E) 3 Foreword This document (EN 1426:2015) has been prepared by Technical Committee CEN/TC 336 “Bituminous binders”, the secretariat of which is held by AFNOR. This document supersedes EN 1426:2007. 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 2016, and conflicting national standards shall be withdrawn at the latest by January 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. The major changes to the standard at this revision have been:

the normative reference to mercury thermometers has been deleted (see 5.7 and Annex A) and —
Table 1 and the description of 6.4 have been clarified and improved. Apart from this various smaller adjustments have been made. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 1426:2015



EN 1426:2015 (E) 4 1 Scope This European Standard specifies a method for determining the consistency of bitumen and bituminous binders. Normal procedure is described for penetrations up to (330 × 0,1) mm, but for penetrations above this value, up to (500 × 0,1) mm, different operating parameters are necessary. WARNING — Use of this European Standard may involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this European Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 58, Bitumen and bituminous binders - Sampling bituminous binders EN 1425, Bitumen and bituminous binders - Characterization of perceptible properties EN 1427, Bitumen and bituminous binders - Determination of the softening point - Ring and Ball method EN 10088-3, Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes EN 12594, Bitumen and bituminous binders - Preparation of test samples EN 12597, Bitumen and bituminous binders - Terminology EN ISO 6508-1, Metallic materials - Rockwell hardness test - Part 1: Test method (ISO 6508-1) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 12597 and the following applies. 3.1 penetration consistency, expressed as the distance in tenths of a millimetre that a standard needle will penetrate vertically into a sample of the material under specified conditions of temperature, load and loading duration 4 Principle The penetration of a standard needle into a conditioned test sample shall be measured. For penetrations up to approximately (330 × 0,1) mm the operating parameters shall be a test temperature of 25 °C, an applied load of 100 g, and a loading duration of 5 s. For penetrations expected above approximately (330 × 0,1) mm, the test temperature shall be reduced to 15 °C but the operating parameters of the applied load and the loading duration remain unchanged. Other conditions can be applied; also to reflect different purposes – e.g. 200 g, 60 s and 5 °C may be used as indicative for low temperature performance. SIST EN 1426:2015



EN 1426:2015 (E) 5 5 Apparatus Usual laboratory apparatus and glassware, together with the following: 5.1 Penetrometer; apparatus that permits a needle holder to move vertically without measurable friction and enables the needle penetration to be determined to the nearest 0,1 mm. The needle holder shall be readily detachable from the apparatus and shall have a mass of (47,50 ± 0,05) g. A weight of (50,00 ± 0,05) g suitable for attachment to the needle holder shall be provided if not already fixed to the needle holder. The stand upon which the specimen container, or transfer dish rests shall be flat and horizontal. The 50 g weight shall be fixed underneath the support (see Figure 1). An example of a suitable penetrometer is shown in Figure 1. To facilitate levelling, the penetrometer should be provided with level adjustment screws. NOTE
The use of the needle-holder of (97,50 ± 0,05) g without additional weight is also possible. Equipment that controls the penetration time automatically may also be used. Such equipment shall be checked regularly for correct penetration time (see 5.6). 5.2 Penetration needle, (see Figure 2) 5.2.1 Penetration needle specifications made from fully hardened, tempered and polished stainless steel of type X105CrMo17 (1.4125), conforming to EN 10088-3, taking into account that it is not necessary to comply with the minimum content of molybdenum specified in that standard, and of Rockwell hardness C54 to C60 determined in accordance with EN ISO 6508-1. The cylindrical body of the needle shall have a diameter of 1,00 mm to 1,02 mm and one end shall be symmetrically tapered by grinding to a cone with an angle between 8°40’ and 9°40’ over the entire cone length. The cone shall be co-axial with the cylindrical body of the needle; the total axial variation of the intersection between the conical and cylindrical surfaces shall not exceed 0,2 mm. Further dimensional details of the penetration needle see Figure 2. The conical tip of the needle shall be ground square to the axis of the needle within 2 ° until the diameter at the tip is between 0,14 mm and 0,16 mm. For penetrations up to (330 × 0,1) mm the length of the needle shall be approximately 50 mm. For penetrations between (330 × 0,1) mm and (500 × 0,1) mm, use needles that shall conform to the requirements given for mass and dimensions, but which are longer in length so that the ferrule into which the needle is fixed does not penetrate the material undergoing testing. The needle shall be rigidly mounted in a brass or stainless steel ferrule with 5 mm to 10 mm of the needle inside the ferrule. The run-out of the needle tip or any part of the needle relative to the ferrule axis shall not exceed 1,0 mm. The ferrule shall be (3,10 ± 0,15) mm in diameter and (38 ± 1) mm in length. The ferrule of the penetration needle shall fit firmly into the needle holder. The mass of the ferrule and needle assembly shall be (2,50 ± 0,05) g. NOTE 1 A drill hole at the end of the ferrule or a flat on the side is possible to control the mass. Individual identification marking shall be engraved or stamped on the ferrule of each needle; the same marking shall not be repeated by the manufacturer within a 3 year period. NOTE 2 For information concerning tolerances of the needle (Figure 2), see ISO 286-1, EN 1829, EN ISO 1101 and EN ISO 1302. 5.2.2 Continuous check of penetration needle by lab
It is important that initial and continued compliance with the stringent requirements for the needle is maintained. Certification of compliance shall be obtained through the needle supplier or a qualified agency. SIST EN 1426:2015



EN 1426:2015 (E) 6 Penetration needles shall be stored adequately in a protective box. The edge of the ground tip shall be sharp and free from burrs. The needle shall be inspected visually for corrosion and shape and the masses of the needle and spindle checked sufficiently regularly to assure satisfactory condition. In case of corrosion or burrs, penetration needle shall be rejected. NOTE
The verification of the conical tip of the needle can be performed with binocular magnifying glasses or a microscope. A visual control of the run-out of the needle shall be performed by rolling the needle on a table. The mass of the needle plus needle holder together with the additional mass of the weight provides a moving load of (100,00 ±0,10) g. 5.3 Test sample container, metal or glass, cylindrical, flat-bottomed. The internal depth of the container shall be appropriate in order to contain a bituminous sample of which the depth shall be at least 10 mm greater than the expected penetration, and not less than 35 mm and shall not exceed 60 mm. The internal diameter of the container shall be at least 55 mm and shall not exceed 70 mm. NOTE 1 Recommended dimensions of the test sample container are given in Table 1. Table 1 — Informative - Recommended dimensions of the test sample container (see normative details in 6.4) Penetration (0,1 mm) Internal depth (mm) Internal diameter (mm) Approx. volume of sample (mL) Approx. cooling time in air or conditioning time in water (min) penetration < 160 35 55 80 60 160 ≤ penetration < 330 45 70 170 75 330 ≤ penetration ≤ 500 60 70 230 90 If insufficient binder is available (e.g. if it was obtained by extraction of a bituminous mix core or while monitoring shor
...

SLOVENSKI STANDARD
oSIST prEN 1426:2013
01-december-2013
%LWXPHQLQELWXPHQVNDYH]LYD'RORþDQMHSHQHWUDFLMH]LJOR
Bitumen and bituminous binders - Determination of needle penetration
Bitumen und bitumenhaltige Bindemittel - Bestimmung der Nadelpenetration
Bitumes et liants bitumineux - Détermination de la pénétrabilité à l'aiguille
Ta slovenski standard je istoveten z: prEN 1426
ICS:
75.140 Voski, bitumni in drugi naftni Waxes, bituminous materials
proizvodi and other petroleum products
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
oSIST prEN 1426:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1426:2013

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oSIST prEN 1426:2013


EUROPEAN STANDARD
DRAFT
prEN 1426
NORME EUROPÉENNE

EUROPÄISCHE NORM

September 2013
ICS 75.140; 91.100.50 Will supersede EN 1426:2007
English Version
Bitumen and bituminous binders - Determination of needle
penetration
Bitumes et liants bitumineux - Détermination de la Bitumen und bitumenhaltige Bindemittel - Bestimmung der
pénétrabilité à l'aiguille Nadelpenetration
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 336.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1426:2013: E
worldwide for CEN national Members.

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oSIST prEN 1426:2013
prEN 1426:2013 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Principle .4
5 Apparatus .5
6 Sampling .7
7 Procedure .8
8 Expression of results .9
9 Precision .9
10 Test report . 10
Annex A (informative) Characteristics of thermometers . 13
Annex B (informative) Checklist of special points to be verified . 14
Bibliography . 16

2

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oSIST prEN 1426:2013
prEN 1426:2013 (E)
Foreword
This document (prEN 1426:2013) has been prepared by Technical Committee CEN/TC 336 “Bituminous
binders”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1426:2007.
3

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oSIST prEN 1426:2013
prEN 1426:2013 (E)
1 Scope
This European Standard specifies a method for determining the consistency of bitumen and bituminous
binders. Normal procedure is described for penetrations up to 330 × 0,1 mm, but for penetrations above this
value, up to 500 × 0,1 mm, different operating parameters are necessary.
WARNING — Use of this European Standard may involve hazardous materials, operations and
equipment. This European Standard does not purport to address all of the safety problems associated
with its use. It is the responsibility of the user of this European Standard to establish appropriate
safety and health practices and determine the applicability of regulatory limitations prior to use.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 58, Bitumen and bituminous binders – Sampling bituminous binders
EN 1425, Bitumen and bituminous binders – Characterization of perceptible properties
EN 1427, Bitumen and bituminous binders – Determination of the softening point – Ring and Ball method
EN 10088-3, Stainless steels – Part 3: Technical delivery conditions for semi-finished products, bars, rods,
wire, sections and bright products of corrosion resisting steels for general purposes
EN 12594, Bitumen and bituminous binders – Preparation of test samples
EN 12597, Bitumen and bituminous binders – Terminology
ISO 6508-1, Metallic materials – Rockwell hardness test – Part 1: Test method (scales A, B, C, D, E, F, G, H,
K, N, T)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12597 and the following applies.
3.1
penetration
consistency, expressed as the distance in tenths of a millimetre that a standard needle will penetrate vertically
into a sample of the material under specified conditions of temperature, load and loading duration
4 Principle
The penetration of a standard needle into a conditioned test sample shall be measured. For penetrations up to
approximately 330 × 0,1 mm the operating parameters shall be a test temperature of 25 °C, an applied load of
100 g, and a loading duration of 5 s. For penetrations expected above approximately
330 × 0,1 mm, the test temperature shall be reduced to 15 °C but the operating parameters of the applied load
and the loading duration remain unchanged.
4

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oSIST prEN 1426:2013
prEN 1426:2013 (E)
5 Apparatus
Usual laboratory apparatus and glassware, together with the following:
5.1 Penetrometer; apparatus that permits a needle holder to move vertically without measurable friction
and enables the needle penetration to be determined to the nearest 0,1 mm. The needle holder shall be
readily detachable from the apparatus and shall have a mass of (47,50 ± 0,05) g. A weight of (50,00 ± 0,05) g
suitable for attachment to the needle holder shall be provided if not already fixed to the needle holder. The
stand upon which the specimen container, or transfer dish rests shall be flat and horizontal. The 50 g weight
shall be fixed underneath the support (see Figure 1).
NOTE An example of a suitable penetrometer is shown in Figure 1. To facilitate levelling, the penetrometer should be
provided with level adjustment screws.
Equipment that controls the penetration time automatically may also be used. Such equipment shall be
checked regularly for correct penetration time (see 5.6).
5.2 Penetration needle, (see Figure 2),
5.2.1 Penetration needle specifications made from fully hardened, tempered and polished stainless steel
of type X105CrMo17 (1.4125), conforming to EN 10088-3, taking into account that it is not necessary to
comply with the minimum content of molybdenum specified in that standard, and of Rockwell hardness C54 to
C60 determined in accordance with ISO 6508-1. The cylindrical body of the needle shall have a diameter of
1,00 mm to 1,02 mm and one end shall be symmetrically tapered by grinding to a cone with an angle of 9°
(10 ± 30)' over the entire cone length. The cone shall be co-axial with the cylindrical body of the needle; the
total axial variation of the intersection between the conical and cylindrical surfaces shall not exceed 0,2 mm.
The conical tip of the needle shall be ground square to the axis of the needle within 2° until the diameter at the
tip is between 0,14 mm and 0,16 mm.
For penetrations up to 330 × 0,1 mm the length of the needle shall be approximately 50 mm. For penetrations
between 330 × 0,1 mm and 500 × 0,1 mm, use needles that shall conform to the requirements given for mass
and dimensions, but which are longer in length so that the ferrule into which the needle is fixed does not
penetrate the material undergoing testing.
The needle shall be rigidly mounted in a brass or stainless steel ferrule with 5 mm to 10 mm of the needle
inside the ferrule. The run-out of the needle tip or any part of the needle relative to the ferrule axis shall not
exceed 1,0 mm. The ferrule shall be (3,10 ± 0,15) mm in diameter and (38 ± 1) mm in length. The ferrule of
the penetration needle shall fit firmly into the needle holder.
The mass of the ferrule and needle assembly shall be (2,50 ± 0,05) g.
NOTE 1 A drill hole at the end of the ferrule or a flat on the side is possible to control the mass.
Individual identification marking shall be engraved or stamped on the ferrule of each needle; the same
marking shall not be repeated by the manufacturer within a 3-year period.
NOTE 2 For information concerning tolerances of the needle (Figure 2), see ISO 286-1, EN 1829, EN ISO 1101 and
EN ISO 1302.
5.2.2 Continuous check of penetration needle by lab
It is important that initial and continued compliance with the stringent requirements for the needle is
maintained. Certification of compliance shall be obtained through the needle supplier or a qualified agency.
Penetration needle shall be stored horizontally in a protective box.
The edge of the ground tip shall be sharp and free from burrs.
The needle shall be inspected visually for corrosion and shape and the masses of the needle and spindle
checked sufficiently regularly to assure satisfactory condition.
5

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oSIST prEN 1426:2013
prEN 1426:2013 (E)
In case of corrosion or burrs, penetration needle shall be rejected.
NOTE The verification of the conical tip of the needle can be performed with binocular magnifying glasses or a
microscope.
A visual control of the run-out of the needle shall be performed by rolling the needle on a table.
The mass of the needle plus needle holder together with the additional mass of the weight provides a moving
load of (100,00 ±0,10) g.
5.3 Test sample container, metal or glass, cylindrical, flat-bottomed. The internal depth of the container
shall be appropriate in order to contain a bituminous sample of which the depth shall be at least 10 mm
greater than the expected penetration, and not less than 35 mm and shall not exceed 45 mm. The internal
diameter of the container shall be at least 55 mm and shall not exceed 70 mm.
NOTE 1 Recommended dimensions of the test sample container are given in Table 1.
Table 1 — Recommended dimensions of the test sample container
Approx. Approx. cooling time
Internal Internal
Penetration volume of in air or conditioning
depth diameter
sample time in water
(0,1 mm) (mm) (mm) (ml) (min)
penetration < 160 35 55 80 60
45 70 170 75
160 ≤ penetration < 330
330 ≤ penetration ≤ 500 60 70 230 90

NOTE 2 If insufficient binder is available (e.g. if it was obtained by extraction of a bituminous mix core or while
monitoring short- or long-term ageing development) use a small stainless steel container. In order to fulfil the requirements
of 7.4.2, the container shall have an inner diameter of at least 35 mm and a wall thickness between 1,5 mm and 2,0 mm.
For penetrations lower than 100 x 0,1 mm, the inner height of the container shall be at least 20 mm. For penetrations from
100 x 0,1 mm up to 200 x 0,1 mm, the inner height of the container shall be at least 30 mm. To ensure a good stable
temperature during testing, the container shall be placed in a brass ring with an inner diameter within 0,5 mm of the outer
diameter of the sample container and a height of (21 ± 1) mm or (31 ± 1) mm. Report deviation from standard test
conditions under Test report e).
NOTE 3 The precision of the penetration values determined using the metal ring can be different from those given in
Clause 9.
5.4 Water bath (constant temperature bath), with a capacity of at least 10 l, and able to maintain the
temperature of the test sample within ± 0,15 °C. The bath shall have a perforated shelf supported in a position
not less than 50 mm from the bottom and not less than 100 mm below the liquid level in the bath. If
penetration tests are to be made in the bath itself, an additional shelf, strong enough to support the
penetrometer shall be provided.
NOTE The use of distilled or deionized water is recommended for the bath. Care should be taken to avoid
contamination of the bath water by active surface agents or any other material that can affect the penetration values.
5.5 Transfer dish, for tests outside the water bath. The dish shall have a capacity of at least 350 ml and
shall be deep enough to ensure that the test sample container is completely covered with water.
The bottom of the transfer dish shall be constructed so that the dish cannot be rocked when it is placed on the
stand of the penetrometer. Similarly the surface on which the test sample container rests shall be made so
that the test sample container cannot rock during penetration of the test sample.
For temperatures lower than 25 °C, the capacity of the transfer dish shall be 1,5 l.
5.6 Timing device, accurate to within 0,1 s.
6

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oSIST prEN 1426:2013
prEN 1426:2013 (E)
5.7 Temperature measuring device.
A temperature measuring device (combining sensor and reading unit) shall
 have a range from at least 0 °C to 30 °C
 be readable to 0,1 °C or less and
 have an accuracy of 0,1 °C or better.
Sensors based on platinum resistance thermometers have been found suitable but other principles are also
allowed. The temperature measuring device
...

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