ISO 10364:2007
(Main)Structural adhesives — Determination of the pot life (working life) of multi-component adhesives
Structural adhesives — Determination of the pot life (working life) of multi-component adhesives
ISO 10364:2007 specifies methods for determining the pot life of multi-component adhesives in order to be able to determine whether the pot life conforms to the minimum specified working life required of an adhesive. The test methods described are suitable for assessing all multi-component adhesives, and especially epoxy-based and polyurethane-based adhesives, but they are not suitable for some acrylic-based adhesives. The methods can also be used for assessing non-structural adhesives.
Adhésifs structuraux — Détermination de la durée de vie en pot (délai d'utilisation) d'adhésifs multicomposants
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 10364
Second edition
2007-09-01
Structural adhesives — Determination of
the pot life (working life) of multi-
component adhesives
Adhésifs structuraux — Détermination de la durée de vie en pot (délai
d'utilisation) d'adhésifs multicomposants
Reference number
ISO 10364:2007(E)
©
ISO 2007
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ISO 10364:2007(E)
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ISO 10364:2007(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle. 2
5 Apparatus . 2
6 Procedure . 3
6.1 Sampling. 3
6.2 Method 1: Determination from the change in apparent viscosity . 3
6.3 Method 2: Determination from the change in extrusion rate . 3
6.4 Method 3: Determination from the ease of manual application. 4
6.5 Method 4: Determination from the change in surface tackiness. 4
6.6 Method 5: Determination from the reaction temperature . 5
6.7 Method 6: Determination from the bond strength. 5
7 Expression of results . 5
8 Test report . 6
Bibliography . 7
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ISO 10364:2007(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 10364 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11, Products.
This second edition cancels and replaces the first edition (ISO 10364:1993), which has been technically
revised. The revision is based on EN 14022, prepared by the European Committee for Standardization (CEN),
Technical Committee CEN/TC 193, Adhesives.
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INTERNATIONAL STANDARD ISO 10364:2007(E)
Structural adhesives — Determination of the pot life (working
life) of multi-component adhesives
SAFETY STATEMENT — Persons using this document should be familiar with normal laboratory
practice, if applicable. This document does not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user to establish appropriate safety and health
practices and to ensure compliance with any regulatory requirements.
1 Scope
This International Standard specifies methods for determining the pot life of multi-component adhesives in
order to be able to determine whether the pot life conforms to the minimum specified working life required of
an adhesive.
NOTE 1 For the purposes of simplification, the term “pot life” is deemed to have the same meaning as “working life”
and will be used to represent both throughout this International Standard.
The test methods described are suitable for assessing all multi-component adhesives, and especially
epoxy-based and polyurethane-based adhesives, but they are not suitable for some acrylic-based adhesives.
NOTE 2 This International Standard can also be used for assessing non-structural adhesives.
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 472, Plastics — Vocabulary
ISO 2555, Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of apparent
viscosity by the Brookfield Test method
ISO 3219, Plastics — Polymers/resins in the liquid state or as emulsions or dispersions — Determination of
viscosity using a rotational viscometer with defined shear rate
ISO 15605, Adhesives — Sampling
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 472 and the following apply.
3.1
pot life
working life
period of time during which a multi-component adhesive can be used after its component parts have been
mixed
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ISO 10364:2007(E)
4 Principle
This International Standard specifies six methods for the determination of the pot life of multi-component
adhesives.
In method 1, the pot life is determined from the increase in viscosity of the adhesive as it reacts. This method
is not suitable for the determination of pot lives that are shorter than 5 min.
In method 2, the pot life is determined from the decrease in the mass of mixed adhesive which is extruded in
unit time under standard conditions. This method is not suitable for the determination of pot lives that are
shorter than 5 min.
In method 3, the pot life is determined as the time taken to reach a point when the mixed adhesive can no
longer be spread by hand.
In method 4, the pot life is determined as the time taken to reach a point when the surface of the mixed
adhesive is no longer tacky, i.e. it is dry to the touch.
In method 5, the pot life is determined as the time taken by the mixed adhesive to reach a defined
temperature, the so-called critical temperature. This method is applicable to all multi-component systems.
In method 6, the pot life is determined as the time taken for the bond strength of the adhesive to drop to a
predetermined value or to decrease by a predetermined percentage. This method is not suitable for the
determination of pot lives that are shorter than 5 min.
5 Apparatus
5.1 Balance, capable of weighing up to (500 ± 0,2) g for methods 1, 2, 5 and 6 and up to (100 ± 0,2) g for
methods 3, 4 and 5.
5.2 Beaker, squat form, made of a material which does not react with the adhesive under test, with a wall
thickness which does not exceed 1 mm and with a capacity of 400 ml for methods 1 and 6, 250 ml for
method 3, 50 ml for methods 4 and 5 and 200 ml for method 5.
5.3 Spatula, made of a material which does not react with the adhesive under test and with a square, not
rounded, end.
5.4 Rotational viscometer, as specified in ISO 2555 or ISO 3219.
5.5 Water bath, capable of being maintained at constant temperature to within ± 0,1 °C for methods 2, 3
and 4 and within ± 0,2 °C for method 5 throughout the temperature range 15 °C to 30 °C.
5.6 Stopwatch, accurate to within ± 1 s.
5.7 Test enclosure, capable of being maintained at the test temperature and, if necessary, at a relative
humidity of (50 ± 5) %.
5.8 Disposable plastic cartridges, internal diameter 47 mm, length 210 mm and fitted with a threaded end
fitting and a piston, both cartridge and piston being made of a material which does not react with the adhesive
under test.
5.9 Stirrer, with a rigid, helical stirrer blade made of a material which does not react with the adhesive
under test.
5.10 Stirrer motor, electrically or pneumatically powered, whose speed can be regulated between 0 rpm
and 1 000 rpm.
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ISO 10364:2007(E)
5.11 Extrusion nozzle, made of material which does not react with the adhesive under test, capable of
being screwed onto the end fitting of the
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