ISO 16535:2012
(Main)Thermal insulating products for building applications — Determination of long-term water absorption by immersion
Thermal insulating products for building applications — Determination of long-term water absorption by immersion
Produits isolants thermiques destinés aux applications du bâtiment — Détermination de l'absorption d'eau à long terme par immersion
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 16535
First edition
2012-05-15
Thermal insulating products for building
applications — Determination of long-
term water absorption by immersion
Produits isolants thermiques destinés aux applications du bâtiment —
Détermination de l’absorption d’eau à long terme par immersion
Reference number
ISO 16535:2012(E)
©
ISO 2012
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ISO 16535:2012(E)
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ii © ISO 2012 – All rights reserved
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ISO 16535:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 1
5 Test specimens . 4
5.1 Dimensions of test specimens . 4
5.2 Number of test specimens . 4
5.3 Preparation of test specimens . 4
5.4 Conditioning of test specimens . 4
6 Procedure . 5
6.1 Test conditions . 5
6.2 Test procedure . 5
7 Calculation and expression of results . 7
7.1 General . 7
7.2 Long-term water absorption by partial immersion . 7
7.3 Long-term water absorption by total immersion . 7
8 Accuracy of measurement . 8
9 Test report . 8
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ISO 16535:2012(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 16535 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the
built environment, Subcommittee SC 1, Test and measurement methods.
ISO 16535 includes the original EN 12087 prepared by Technical Committee CEN/TC 88 “Thermal insulating
materials and products”, with the following clauses modified to reflect the conditions for tropical countries:
— Clause 5.4: Conditioning of test specimens;
— Clause 6.1: Test conditions;
— Clause 9: Test report.
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ISO 16535:2012(E)
Introduction
ISO 16535 is one of a series of existing European Standards on test methods which were adopted by ISO. This
group of International Standards comprises the following group of interrelated standards:
ISO Title Respective
EN standard
12344 Thermal insulating products for building applications — Determination of EN 12089
bending behaviour
12968 Thermal insulation products for building applications — Determination of the EN 13495
pull-off resistance of external thermal insulation composite systems (ETICS)
(foam block test)
29465 Thermal insulating products for building applications — Determination of length EN 822
and width
29466 Thermal insulating products for building applications — Determination of EN 823
thickness
29467 Thermal insulating products for building applications — Determination of EN 824
squareness
29468 Thermal insulating products for building applications — Determination of flatness EN 825
29469 Thermal insulating products for building applications — Determination of EN 826
compression behaviour
29470 Thermal insulating products for building applications — Determination of the EN 1602
apparent density
29471 Thermal insulating products for building applications — Determination of EN 1603
dimensional stability under constant normal laboratory conditions (23 degrees
C/50 % relative humidity)
29472 Thermal insulating products for building applications — Determination of EN 1604
dimensional stability under specified temperature and humidity conditions
29764 Thermal insulating products for building applications — Determination of EN 1605
deformation under specified compressive load and temperature conditions
29765 Thermal insulating products for building applications — Determination of tensile EN 1607
strength perpendicular to faces
29766 Thermal insulating products for building applications — Determination of tensile EN 1608
strength parallel to faces
29767 Thermal insulating products for building applications — Determination of short- EN 1609
term water absorption by partial immersion
29768 Thermal insulating products for building applications — Determination of linear EN 12085
dimensions of test specimens
29769 Thermal insulating products for building applications — Determination of EN 12430
behaviour under point load
29770 Thermal insulating products for building applications — Determination of EN 12431
thickness for floating-floor insulating products
29771 Thermal insulating materials for building applications — Determination of EN 13820
organic content
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ISO 16535:2012(E)
29803 Thermal insulation products for building applications — Determination of the EN 13497
resistance to impact of external thermal insulation composite systems (ETICS)
29804 Thermal insulation products for building applications — Determination of the EN 13494
tensile bond strength of the adhesive and of the base coat to the thermal
insulation material
29805 Thermal insulation products for building applications — Determination of the EN 13496
mechanical properties of glass fibre meshes
16534 Thermal insulating products for building applications — Determination of EN 1606
compressive creep
16535 Thermal insulating products for building applications — Determination of long- EN 12087
term water absorption by immersion
16536 Thermal insulating products for building applications — Determination of long- EN 12088
term water absorption by diffusion
16537 Thermal insulating products for building applications — Determination of shear EN 12090
behaviour
16546 Thermal insulating products for building applications — Determination of freeze- EN 12091
thaw resistance
16544 Thermal insulating products for building applications — Conditioning to moisture EN 12429
equilibrium under specified temperature and humidity conditions
16545 Thermal insulating products for building applications — Determination of EN 13793
behaviour under cyclic loading
A further group of existing European Standards on test methods for products used to insulate building equipment
and industrial installations comprises the following group of interrelated International Standards:
ISO 12623 Thermal insulating products for building equipment and industrial installations — EN 13472
Determination of short-term water absorption by partial immersion of preformed
pipe insulation
ISO 12624 Thermal insulating products for building equipment and industrial installations — EN 13468
Determination of trace quantities of water soluble chloride, fluoride, silicate,
sodium ions and pH
ISO 12628 Thermal insulating products for building equipment and industrial installations — EN 13467
Determination of dimensions, squareness and linearity of preformed pipe
insulation
ISO 12629 Thermal insulating products for building equipment and industrial installations — EN 13469
Determination of water vapour transmission properties of preformed pipe
insulation
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INTERNATIONAL STANDARD ISO 16535:2012(E)
Thermal insulating products for building applications —
Determination of long-term water absorption by immersion
1 Scope
This International Standard specifies the equipment and procedures for determining the long-term water
absorption of test specimens. It is applicable to thermal insulating products.
This International Standard specifies two options:
— Method 1: partial immersion; and
— Method 2: total immersion.
The long-term water absorption by partial immersion is intended to simulate the water absorption caused by
long-term water exposure.
The long-term water absorption by total immersion is not directly related to the conditions on site, but has been
recognized as a relevant condition of test for some products in some applications.
2 Normative references
The following referenced document is 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 29768, Thermal insulating products for building applications — Determination of linear dimensions of
test specimens
3 Principle
3.1 Partial immersion (Method 1). The long-term water absorption by partial immersion is determined
by measuring the change in mass of a test specimen, the lower part of which is in contact with water for a
period of 28 days.
The excess water adhering to the surface, not absorbed by the test specimen, is removed by drainage in
Method 1A or taken into account by deduction of the initial water uptake in Method 1B.
3.2 Total immersion (Method 2). The long-term water absorption by total immersion is determined by
measuring the change in mass of the test specimen, totally immersed in water, over a period of 28 days.
The excess water adhering to the surface, not absorbed by the test specimen, is removed by drainage in
Method 2A or taken into account by deduction of the initial water uptake in Method 2B.
4 Apparatus
4.1 Balance, allows the determination of the mass of a test specimen to 0,1 g.
4.2 Water tank, with a device for keeping the water level constant to within ± 2 mm, and a device to keep the
test specimen in the required position. Examples of test devices are given in Figures 1, 2 and 3. The device to
keep the test specimen in position shall not cover more than 15 % of the cross-sectional area of the test specimen,
which is exposed to water. The device shall be such that the original form of the test specimen is maintained.
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