ISO 10059-1:2025
(Main)Dense shaped refractory products — Determination of cold compressive strength — Part 1: Referee test without packing
Dense shaped refractory products — Determination of cold compressive strength — Part 1: Referee test without packing
This document specifies a method for determination of the cold compressive strength of dense shaped refractory products. Shaped refractories are those which have fixed geometry and dimensions when delivered to the user. This document is accordingly applicable to standard shape refractory bricks, but also special shapes refractory products and pre-cast products.
Produits réfractaires façonnés denses — Détermination de la résistance à la compression à température ambiante — Partie 1: Méthode d'essai de référence sans intercalaire
General Information
Relations
Standards Content (Sample)
International
Standard
ISO 10059-1
Third edition
Dense shaped refractory
2025-03
products — Determination of cold
compressive strength —
Part 1:
Referee test without packing
Produits réfractaires façonnés denses — Détermination de la
résistance à la compression à température ambiante —
Partie 1: Méthode d'essai de référence sans intercalaire
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Test pieces . 3
6.1 Geometry of the test piece .3
6.2 Number of test pieces .4
6.3 Test piece preparation and verification .4
7 Procedure . 6
8 Expression of results . 6
9 Test report . 7
Annex A (informative) Precision and bias . 8
Bibliography .11
iii
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.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 33, Refractories.
This third edition cancels and replaces the second edition (ISO 10059-1:1992), which has been technically
revised.
The main changes are as follows:
— revised definitions;
— addition of the possibility to use cube shaped test piece;
— addition of an informative annex on precision and bias.
A list of all parts in the ISO 10059 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
The ISO 10059 series comprises two parts. This document (ISO 10059-1) specifies a referee method for
determination of the cold compressive strength, which does not use any packing material. ISO 10059-2 will
specify an alternative test where packing material and alternative test piece sizes are permitted.
The test method for shaped insulating products is given in ISO 8895.
v
International Standard ISO 10059-1:2025(en)
Dense shaped refractory products — Determination of cold
compressive strength —
Part 1:
Referee test without packing
1 Scope
This document specifies a method for determination of the cold compressive strength of dense shaped
refractory products.
Shaped refractories are those which have fixed geometry and dimensions when delivered to the user. This
document is accordingly applicable to standard shape refractory bricks, but also special shapes refractory
products and pre-cast products.
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.
ISO 13385-1, Geometrical product specifications (GPS) — Dimensional measuring equipment — Part 1: Design
and metrological characteristics of callipers
ISO 7500-1, Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1:
Tension/compression testing machines — Calibration and verification of the force-measuring system
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
cold compressive strength
σ
CCS
maximum load per unit area, applied under specified conditions at room temperature, that a refractory
product will withstand before failure occurs
3.2
dense shaped refractory product
product with specific dimensions, having a true porosity of less than 45 % by volume, when measured in
accordance with ISO 5017
3.3
sample
representative collection of items that can be obtained by sampling according to a sampling plan agreed
upon by the interested parties
Note 1 to entry: An example of an applicable sampling plan is given in ISO 5022.
3.4
item
refractory brick or shape
3.5
test piece
test specimen
piece of material extracted from an item (3.4) and suitably shaped and prepared for the test
4 Principle
A test piece of known dimensions is subjected, under specified conditions, to a steadily increasing
compressive load until its failure, when it cannot support a further increase in load. The cold compressive
strength is calculated from the maximum load indicated at failure and the mean cross-sectional area over
which the load is applied.
5 Apparatus
5.1 Mechanical or hydraulic compression testing machine. The accuracy of the test machine shall be
in accordance with ISO 7500-1, Grade 2 (accuracy 2 % of indicated load), or better.
−1
The machine shall be capable of increasing the stress at a rate of (1,0 ± 0,1) MPa·s , until the test piece is
unable to support the load.
The platens of the machine shall:
a) have a Rockwell hardness value between 58 HRC and 62 HRC;
b) be ground plane to a flatness tolerance of 0,03 mm over the area to be in contact with the test piece;
c) have a surface texture (mean roughness value R ) between 0,8 µm and 3,2 µm This can be checked
a
visually or by feeling with a "mean-roughness" reference standard such as is used for flat grinding.
The area of the upper platen shall not be greater than 100 cm , but shall have an area greater than the
cross section of the test piece. The upper platen shall function on a seating that will compensate for small
deviations from parallelism between the platens and test piece.
A testing machine whose platens do not comply with the above requirements for size can be used in
conjunction with an ancillary adaptor, such as shown in Figure 1, placed centrally between the platens of the
machine. The platens of the adaptor shall comply with the machine platens requirements for hardness and
flatness given in this subclause. They shall have a thickness of at least 10 mm.
Devices which measure the force directly in the pressing direction by a load cell and not conversion via the
hydraulic pressure are more accurate and are recommended.
The platens should be replaceable to allow re-machining and should not be matted.
5.2 Calliper, which shall be in accordance with ISO 13385-1, for measurement of test pieces dimensions.
5.3 Set square.
5.4 Drying oven, capable of being controlled at (110 ± 5) °C, or other device which has an equivalent
heating effect.
For MgO containing products, it is recommended to dry the test pieces to constant mass at (150 ± 10) °C.
NOTE A fan-assisted oven with ventilation and an exhaust air damper would assist in attaining an even
temperature distribution and efficient drying of the test pieces.
5.5 Feeler gauges.
5.6 Levelling plate.
5.7 Ancillary adaptor, (see Figure 1) if needed (see 5.1).
Key
1 cylindrical element transmitting load onto the template
2 spherical testing
3 upper platen
4 stiff frame
5 lower platen
Figure 1 — Ancillary adaptor
6 Test pieces
6.1 Geometry of the test piece
The test pieces shall be either
a) cylinders (50 ± 0,5) mm in diameter and (50 ± 0,5) mm in height;
b) cubes (50 ± 0,5) mm in edges length.
When it is not possible to obtain this size from the test item, cylinders (36 ± 0,3) mm in diameter and
(36 ± 0,3) mm in height shall be used.
It is not recommended to compare the tests results obtained using test pieces of different geometries or
dimensions.
6.2 Number of test pieces
A sample consists of at least four items, obtained by sampling according to a sampling plan agreed upon by
the interested parties, e.g. ISO 5022.
Only one test piece shall be taken from each item to be tested, unless otherwise agreed and reported (see
Clause 9).
6.3 Test piece preparation and verification
6.3.1 The test piece shall be extracted from the middle of the item, unless otherwise agreed.
When more than one test piece is taken from an item, it is recommended to include at least one test piece
taken from the centre, and one test piece adjacent to the hot face.
6.3.2 Test pieces shall be prepared by drilling cylinders from the item(s), so that the load applied during
testing is in the same
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.