SIST ISO 8873-2:2015

INTERNATIONAL ISO
STANDARD 8873-2
First edition
2007-05-01
Rigid cellular plastics — Spray-applied
polyurethane foam for thermal
insulation —
Part 2:
Application
Plastiques alvéolaires rigides — Mousse de polyuréthanne projetée
pour l'isolation thermique —
Partie 2: Application
Reference number
©
ISO 2007
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ii © ISO 2007 – All rights reserved

Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 2
4 Requirements . 3
4.1 Manufacturer . 3
4.2 Spray polyurethane foam contractor . 3
4.3 Spray polyurethane foam installer . 4
4.4 Apprentice installer. 6
4.5 Material. 6
4.6 Equipment. 6
4.7 Installation . 6
5 Applications. 8
5.1 General. 8
5.2 Air barrier system application . 8
5.3 Vapour barrier application . 8
5.4 Exterior foundation insulation application. 8
5.5 Interior foundation insulation application. 8
5.6 Cathedral ceilings, flat ceilings and decks over heated spaces. 8
5.7 Attic application, exterior (cavity) and interior wall application . 8
6 Sampling . 8
7 Test methods. 9
7.1 Determination of density. 9
7.2 Cohesion and adhesion test . 10
7.3 Verification of substrate (application surface) preparation. 10
7.4 Reporting requirements . 10
8 Manufacturer's marking. 11
9 Manufacturer’s documentation . 12
10 Limitations . 12
Annex A (normative) Substrate preparation. 13
Annex B (normative) Selection of chemical components (system). 16
Annex C (informative) Climatic factors . 17
Annex D (normative) Job-site set up. 18
Annex E (informative) Trouble shooting and repair. 20
Annex F (normative) Handling and safety precautions. 22
Annex G (normative) Disposal and detoxification of drums. 25
Annex H (informative) Daily work record . 27
Annex I (informative) Example of job site label. 29
Annex J (informative) Outline of licensed installer training programme. 30
Annex K (normative) Minimum equipment for site test kit . 36
Bibliography . 37
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 8873-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 10, Cellular
plastics.
This first edition of ISO 8873-2, together with ISO 8873-1 and ISO 8873-3, cancels and replaces
ISO 8873:1987, which has been technically revised.
ISO 8873 consists of the following parts, under the general title Rigid cellular plastics — Spray-applied
polyurethane foam for thermal insulation:
⎯ Part 1: Material specifications
⎯ Part 2: Application
⎯ Part 3: Test methods
iv © ISO 2007 – All rights reserved

Introduction
Spray polyurethane foam for thermal insulation is made by combining two liquid components on the project
site to manufacture a product. As the manufactured product is what provides the physical and thermal
properties desired by the user, it only becomes spray polyurethane foam when it is installed. As such, an
International Standard for the application and installation is required.
This part of ISO 8873 outlines the obligations for the installer of the liquid components that produce the actual
material.
ISO 8873-1 outlines obligations for the manufacturers of spray polyurethane foam liquid components.
ISO 8873-3 provides test methods which have not previously been specified in International Standards.

INTERNATIONAL STANDARD ISO 8873-2:2007(E)

Rigid cellular plastics — Spray-applied polyurethane foam for
thermal insulation —
Part 2:
Application
WARNING — 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 part of ISO 8873 outlines requirements for the application of rigid cellular plastic spray polyurethane foam
for thermal insulation. The primary application of the material is for use as thermal insulation. Spray
polyurethane foam can also be used as the air barrier material which forms part of an air barrier assembly in
buildings. Under specific application conditions, the material can be used in vapour barrier applications in a
building assembly (details of the conditions can be obtained from the manufacturer). The application
requirements are for the installation of spray polyurethane foam whether applied on a building site or in a
prefabrication (manufacturing) facility.
This part of ISO 8873 can be used for non-building applications when agreed to by the supplier and the
purchaser.
The requirements include obligations for the manufacturer, the contractor and the installer. The requirements
include the selection of chemical components, application requirements, quality control and documentation of
the application, limitations for the application and requirements for safety and for disposal of associated waste
material and packaging.
Installation of spray polyurethane foam for thermal insulation, according to this part of ISO 8873 requires the
use of materials and/or equipment that could be hazardous (see Warning).
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 8873-1, Rigid cellular plastics — Spray-applied polyurethane foam for thermal insulation — Part 1:
Material specifications
ISO/IEC 17024, Conformity assessment — General requirements for bodies operating certification of persons
3 Terms and definitions
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.
3.1
authority having jurisdiction
officer or officers having authority, under appropriate regulatory instruments, to exercise enforcement
3.2
apprentice installer
individual who applies spray polyurethane foam on the job site, under the direct supervision of a spray
polyurethane installer
3.3
certification organization
impartial body possessing the necessary competence and reliability to operate a certification system in
accordance with ISO/IEC 17024, in which the interests of all parties concerned with the functioning of the
system are represented
3.4
equipment manufacturer
manufacturer of equipment designed for spray-application of rigid polyurethane cellular plastic thermal
insulation
3.5
in-situ thermal insulation
thermal insulation product produced or taking its final form at the site of application and which achieves its
properties after installation
3.6
site quality assurance programme
quality assurance programme (QAP) based upon quality standards, which ties the chemical system
components manufacturer (supplier), the contractor and the installer together for the installation of spray
polyurethane foam
NOTE
...