ISO 16507:2013
(Main)Timber structures — Uniform, concentrated static and concentrated impact loads on wood-based roof and floor panel assemblies — Test methods
Timber structures — Uniform, concentrated static and concentrated impact loads on wood-based roof and floor panel assemblies — Test methods
ISO 16507:2013 is applicable to determining the resistance to deflection and damage of wood-based panels subjected to concentrated impact loads from nonrigid blunt objects, concentrated static loads, and uniformly distributed loads. Surface indentation is not evaluated separately from deflection. The procedures are intended to simulate loading on roof or floor sheathing materials installed directly to framing. Three applications are covered: roof sheathing, subfloors, and single floors. Panels are tested parallel and/or perpendicular to the panel strength axis. Roof sheathing is tested in both a dry and a wet condition, while subfloors and single floors are both tested in a dry condition, as well as a condition of having dried out after being wet. These moisture conditions are those commonly experienced with site-built construction. These procedures do not cover vibration and are not intended for the evaluation of the framed assembly as a whole.
Structures en bois — Assemblages de panneaux en bois pour toitures et planchers sous charges concentrées et réparties, statique et par impact — Méthodes d'essais
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INTERNATIONAL ISO
STANDARD 16507
First edition
2013-09-01
Timber structures — Uniform,
concentrated static and concentrated
impact loads on wood-based roof and
floor panel assemblies — Test methods
Structures en bois — Assemblages de panneaux en bois pour toitures
et planchers sous charges concentrées et réparties, statique et par
impact — Méthodes d’essais
Reference number
©
ISO 2013
© ISO 2013
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Specimen conditioning. 2
5.1 Dry . 2
5.2 Wet . 2
5.3 Redried . . 2
6 Concentrated static load test . 2
6.1 Apparatus . 2
6.2 Specimen preparation . 4
6.3 Procedure . 7
6.4 Report . 7
7 Concentrated impact load test . 8
7.1 Apparatus . 8
7.2 Specimen preparation .11
7.3 Procedure .11
7.4 Report .13
8 Uniformly distributed load test .14
8.1 General .14
8.2 Apparatus .14
8.3 Specimen preparation .15
8.4 Test procedure .16
8.5 Report .17
Annex A (informative) Structural performance requirements for span rating .18
Bibliography .22
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).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 165, Timber structures.
iv © ISO 2013 – All rights reserved
Introduction
During construction and occupancy of a building, floor and roof sheathing are subjected to uniform and
concentrated static and impact loads that frequently govern the thickness required. Static loads may
simulate either foot traffic, or loads from fixtures, when applied through loading disks of appropriate
size. Impact loads will occur during construction and also in service. Uniform loads may simulate snow,
wind, or occupancy loads.
Roof sheathing and subflooring are likely to be critical in strength or stiffness, or both, under foot
traffic and construction loads, while single-layer floors are generally critical under fixture loads, foot
traffic, and in-service impact loads. Subfloors, like single floors, must also support fixture loads, but
they will have an additional layer of material, such as underlayment above, which will help to distribute
concentrated loads.
The procedures outlined will provide data that can be used to evaluate the structural performance,
under concentrated and uniform loads, of roof and floor sheathing, separate from the effects of the
framing, under simulated conditions representative of those in actual service.
[5]
The concentrated static and impact test procedures are based upon ASTM E661-03 . The uniformly
[3]
distributed load test is based upon NIST Voluntary Product Standard PS 1-09 .
Annex A contains non-mandatory sampling and product performance guidelines that correspond to span
rating categories found in PS 1, PS 2, and CSA O325. These three structrural wood-based panel standards
have been referenced in North American building codes for several decades. Over this period of time,
the performance guidelines established in these standards have resulted in reliable and satisfactory in-
service structural performance.
INTERNATIONAL STANDARD ISO 16507:2013(E)
Timber structures — Uniform, concentrated static and
concentrated impact loads on wood-based roof and floor
panel assemblies — Test methods
1 Scope
This International Standard is applicable to determining the resistance to deflection and damage of wood-
based panels subjected to concentrated impact loads from nonrigid blunt objects, concentrated static
loads, and uniformly distributed loads. Surface indentation is not evaluated separately from deflection.
The procedures are intended to simulate loading on roof or floor sheathing materials installed directly
to framing. Three applications are covered: roof sheathing, subfloors, and single floors. Panels are tested
parallel and/or perpendicular to the panel strength axis. Roof sheathing is tested in both a dry and a
wet condition, while subfloors and single floors are both tested in a dry condition, as well as a condition
of having dried out after being wet. These moisture conditions are those commonly experienced with
site-built construction.
These procedures do not cover vibration and are not intended for the evaluation of the framed
assembly as a whole.
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.
None.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
subfloor
panel that provides the structural integrity of the floor and is directly fastened to the floor framing, in
conventional timber framing
3.2
underlayment
panel that provides a smooth surface for direct installation of non-structural finish floor covering, in
conventional timber framing
3.3
single floor
panel that performs the function of subfloor and underlayment
3.4
span rating
index number, based on customary inch units, that identifies the recommended maximum centre-to-
centre support spacing for the specified end use under normal use conditions
Note 1 to entry: Spans are defined for end uses such as roof, subfloor, and single floor. As a matter of convention,
spans are typically specified by a single index number for single floor (e.g. Floor 24 o.c.), while roof and subfloor
are often combined in a fractional format (e.g. 32/16).
EXAMPLE A span rating of 32/16 designates a roof span of 813 mm (32 inches) and a subfloor span of
406 mm (16 inches).
4 Symbols
d distance from outer support to the point of maximum deflection for a uniformly loaded two-span
system, in mm
S test assembly span as measured from centre to centre of supports, in mm
W specimen width, in mm
5 Specimen conditioning
5.1 Dry
Conditioning to either constant weight or moisture content, or for at least 2 weeks at (20 ± 2) °C and
(65 ± 5) % relative humidity.
NOTE 1 Tables A.1 and A.2, footnote a contain alternate conditions for Dry.
NOTE 2 The conditions specified in 5.1 may result in higher results than the conditions permitted for Dry in
Tables A.1 and A.2, footnote a.
5.2 Wet
Conditioning to a continuous water spray for three days, applied to the top surface of the specimen at
a rate such as to keep this surface continuously wet. The position of the specimen shall preclude water
ponding on it, or immersion of any portion.
NOTE A simplified spray tank may be used to support the sheathing in a near vertical position during
exposure to the water spray. The tank should be fitted with drains so that water spray does not accumulate, and
the sheathing should be placed on blocks to elevate its lower edge ab
...
INTERNATIONAL ISO
STANDARD 16507
First edition
2013-09-01
Timber structures — Uniform,
concentrated static and concentrated
impact loads on wood-based roof and
floor panel assemblies — Test methods
Structures en bois — Assemblages de panneaux en bois pour toitures
et planchers sous charges concentrées et réparties, statique et par
impact — Méthodes d’essais
Reference number
©
ISO 2013
© ISO 2013
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Specimen conditioning. 2
5.1 Dry . 2
5.2 Wet . 2
5.3 Redried . . 2
6 Concentrated static load test . 2
6.1 Apparatus . 2
6.2 Specimen preparation . 4
6.3 Procedure . 7
6.4 Report . 7
7 Concentrated impact load test . 8
7.1 Apparatus . 8
7.2 Specimen preparation .11
7.3 Procedure .11
7.4 Report .13
8 Uniformly distributed load test .14
8.1 General .14
8.2 Apparatus .14
8.3 Specimen preparation .15
8.4 Test procedure .16
8.5 Report .17
Annex A (informative) Structural performance requirements for span rating .18
Bibliography .22
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).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 165, Timber structures.
iv © ISO 2013 – All rights reserved
Introduction
During construction and occupancy of a building, floor and roof sheathing are subjected to uniform and
concentrated static and impact loads that frequently govern the thickness required. Static loads may
simulate either foot traffic, or loads from fixtures, when applied through loading disks of appropriate
size. Impact loads will occur during construction and also in service. Uniform loads may simulate snow,
wind, or occupancy loads.
Roof sheathing and subflooring are likely to be critical in strength or stiffness, or both, under foot
traffic and construction loads, while single-layer floors are generally critical under fixture loads, foot
traffic, and in-service impact loads. Subfloors, like single floors, must also support fixture loads, but
they will have an additional layer of material, such as underlayment above, which will help to distribute
concentrated loads.
The procedures outlined will provide data that can be used to evaluate the structural performance,
under concentrated and uniform loads, of roof and floor sheathing, separate from the effects of the
framing, under simulated conditions representative of those in actual service.
[5]
The concentrated static and impact test procedures are based upon ASTM E661-03 . The uniformly
[3]
distributed load test is based upon NIST Voluntary Product Standard PS 1-09 .
Annex A contains non-mandatory sampling and product performance guidelines that correspond to span
rating categories found in PS 1, PS 2, and CSA O325. These three structrural wood-based panel standards
have been referenced in North American building codes for several decades. Over this period of time,
the performance guidelines established in these standards have resulted in reliable and satisfactory in-
service structural performance.
INTERNATIONAL STANDARD ISO 16507:2013(E)
Timber structures — Uniform, concentrated static and
concentrated impact loads on wood-based roof and floor
panel assemblies — Test methods
1 Scope
This International Standard is applicable to determining the resistance to deflection and damage of wood-
based panels subjected to concentrated impact loads from nonrigid blunt objects, concentrated static
loads, and uniformly distributed loads. Surface indentation is not evaluated separately from deflection.
The procedures are intended to simulate loading on roof or floor sheathing materials installed directly
to framing. Three applications are covered: roof sheathing, subfloors, and single floors. Panels are tested
parallel and/or perpendicular to the panel strength axis. Roof sheathing is tested in both a dry and a
wet condition, while subfloors and single floors are both tested in a dry condition, as well as a condition
of having dried out after being wet. These moisture conditions are those commonly experienced with
site-built construction.
These procedures do not cover vibration and are not intended for the evaluation of the framed
assembly as a whole.
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.
None.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
subfloor
panel that provides the structural integrity of the floor and is directly fastened to the floor framing, in
conventional timber framing
3.2
underlayment
panel that provides a smooth surface for direct installation of non-structural finish floor covering, in
conventional timber framing
3.3
single floor
panel that performs the function of subfloor and underlayment
3.4
span rating
index number, based on customary inch units, that identifies the recommended maximum centre-to-
centre support spacing for the specified end use under normal use conditions
Note 1 to entry: Spans are defined for end uses such as roof, subfloor, and single floor. As a matter of convention,
spans are typically specified by a single index number for single floor (e.g. Floor 24 o.c.), while roof and subfloor
are often combined in a fractional format (e.g. 32/16).
EXAMPLE A span rating of 32/16 designates a roof span of 813 mm (32 inches) and a subfloor span of
406 mm (16 inches).
4 Symbols
d distance from outer support to the point of maximum deflection for a uniformly loaded two-span
system, in mm
S test assembly span as measured from centre to centre of supports, in mm
W specimen width, in mm
5 Specimen conditioning
5.1 Dry
Conditioning to either constant weight or moisture content, or for at least 2 weeks at (20 ± 2) °C and
(65 ± 5) % relative humidity.
NOTE 1 Tables A.1 and A.2, footnote a contain alternate conditions for Dry.
NOTE 2 The conditions specified in 5.1 may result in higher results than the conditions permitted for Dry in
Tables A.1 and A.2, footnote a.
5.2 Wet
Conditioning to a continuous water spray for three days, applied to the top surface of the specimen at
a rate such as to keep this surface continuously wet. The position of the specimen shall preclude water
ponding on it, or immersion of any portion.
NOTE A simplified spray tank may be used to support the sheathing in a near vertical position during
exposure to the water spray. The tank should be fitted with drains so that water spray does not accumulate, and
the sheathing should be placed on blocks to elevate its lower edge ab
...
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