ASTM D7032-08
(Specification)Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
Standard Specification for Establishing Performance Ratings for Wood-Plastic Composite Deck Boards and Guardrail Systems (Guards or Handrails)
ABSTRACT
This specification presents the standard procedures for establishing the performance rating of wood-plastic composite (WPC) deck boards and guardrail systems (guards or handrails). The purpose of this specification is to establish the basis for code recognition of these products or systems in exterior applications where combustible construction is allowed. The general requirements for these products shall be dictated by their performance in the following test methods: flexural tests; temperature and moisture effects; ultraviolet resistance test; freeze-thaw resistance test; biodeterioration tests; and fire performance tests. Deck boards are additionally examined by: creep-recovery test; determination of unadjusted allowable load; mechanical fastener holding tests; and slip resistance test. In the same manner, guards and handrails are additionally analyzed through concentrated load tests, and one- and two-family dwelling requirements.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
SCOPE
1.1 This specification covers the procedures to establish a performance rating for wood-plastic composite (WPC) deck boards. This specification also defines the procedures to establish a performance rating for WPC guards and handrails. The purpose of this specification is to establish the basis for code recognition of these products or systems in exterior applications where combustible construction is allowed (see X1.1).
1.2 Deck boards, guards, and handrails covered by this specification are permitted to be of any code compliant shape and thickness (solid or non-solid).
Note 1—While WPCs are produced in a broad range of ratios of fiber to resin it is recognized that the performance requirements in this specification are valid for any material or combination of materials used as deck boards, guards, or handrails. For products made primarily from resin, or for products that exhibit highly plastic properties (for example, more than 3 % strain without rupture in a standard flexural test under ambient conditions), users are directed to Specification D 6662 for additional guidance.
1.3 A deck board, and a deck board used as a stair tread, are assigned a span rating indicating its ability to comply with model code specified functions identified for its specific end use. A guard or handrail is recognized for its ability to meet minimum code requirements specified in the appropriate model building code.
1.4 Details of manufacturing processes may be proprietary and are beyond the scope of this specification.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.
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Designation: D7032 – 08
Standard Specification for
Establishing Performance Ratings for Wood-Plastic
Composite Deck Boards and Guardrail Systems (Guards or
1
Handrails)
This standard is issued under the fixed designation D7032; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety and health practices and determine the applica-
bility of regulatory requirements prior to use.
1.1 This specification covers the procedures to establish a
1.7 Table of Contents:
performance rating for wood-plastic composite (WPC) deck
Section
boards. This specification also defines the procedures to
Scope 1
establish a performance rating for WPC guards and handrails.
Referenced Documents 2
The purpose of this specification is to establish the basis for
Terminology 3
General Requirements 4
code recognition of these products or systems in exterior
Sampling 4.1
applications where combustible construction is allowed (see
Sample Size 4.2
X1.1). Conditioning 4.3
Flexural Tests 4.4
1.2 Deck boards, guards, and handrails covered by this
Temperature and Moisture Effects 4.5
specification are permitted to be of any code compliant shape
Ultraviolet (UV) Resistance Test 4.6
and thickness (solid or non-solid).
Freeze-Thaw Resistance Test 4.7
Biodeterioration Tests 4.8
NOTE 1—While WPCs are produced in a broad range of ratios of fiber
Fire Performance Tests 4.9
Deck Board Performance Requirements 5
to resin it is recognized that the performance requirements in this
General 5.1
specification are valid for any material or combination of materials used
Flexural Performance Tests 5.2
as deck boards, guards, or handrails. For products made primarily from
Determination of the Unadjusted Allowable Load 5.3
resin, or for products that exhibit highly plastic properties (for example,
Creep-Recovery Test 5.4
more than 3% strain without rupture in a standard flexural test under
Mechanical Fastener Holding Tests 5.5
ambient conditions), users are directed to Specification D6662 for
Slip Resistance Test 5.6
Guard and Handrail Performance Requirements 6
additional guidance.
General 6.1
1.3 Adeckboard,andadeckboardusedasastairtread,are
Guardrail System Test Requirements 6.2
One- and Two-Family Dwelling Requirements 6.2.1.1
assigned a span rating indicating its ability to comply with
Handrail Test Requirements (Concentrated Load) 6.3
model code specified functions identified for its specific end
Report 7
use. A guard or handrail is recognized for its ability to meet
Independent Inspection 8
Manufacturing Standard 9
minimumcoderequirementsspecifiedintheappropriatemodel
Precision and Bias 10
building code.
Keywords 11
1.4 Details of manufacturing processes may be proprietary
Two-Span Test Method Annex A1
Fire Propagation Test Methods Annex A2
and are beyond the scope of this specification.
Commentary Appendix X1
1.5 Thevaluesstatedininch-poundunitsaretoberegarded
as standard. The values given in parentheses are mathematical
2. Referenced Documents
conversions to SI units, which are provided for information
2
2.1 ASTM Standards:
only.
D9 Terminology Relating to Wood and Wood-Based Prod-
1.6 This standard does not purport to address all of the
ucts
safety concerns, if any, associated with its use. It is the
D198 Test Methods of Static Tests of Lumber in Structural
responsibility of the user of this standard to establish appro-
Sizes
D790 Test Methods for Flexural Properties of Unreinforced
1
This specification is under the jurisdiction ofASTM Committee D07 on Wood
andisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineered
2
Wood Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Feb. 1, 2008. Published February 2008. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2004. Last previous edition approved in 2007 as D7032-07. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D7032-08. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D7032 – 08
4
andReinforcedPlasticsandElectricalInsulatingMaterials Preservatives by Laboratory Soil-Block Cultures
D883 Terminology Relating to Plastics 2006 International Building Code International Code Coun-
5
D1037 Test Methods for Evaluating Properties of Wood- cil, Inc.
Base Fiber and Particle Panel Materials 2006 International Residential Code International Code
5
D1413 Test Method for Wood Preservatives by Laboratory Council,
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D7032–07 Designation: D 7032 – 08
Standard Specification for
Establishing Performance Ratings for Wood-Plastic
Composite Deck Boards and Guardrail Systems (Guards or
1
Handrails)
This standard is issued under the fixed designation D7032; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers the procedures to establish a performance rating for wood-plastic composite (WPC) deck boards.
ThisspecificationalsodefinestheprocedurestoestablishaperformanceratingforWPCguardsandhandrails.Thepurposeofthis
specification is to establish the basis for code recognition of these products or systems in exterior applications where combustible
construction is allowed (see X1.1).
1.2 Deck boards, guards, and handrails covered by this specification are permitted to be of any code compliant shape and
thickness (solid or non-solid).
NOTE 1—While WPCs are produced in a broad range of ratios of fiber to resin it is recognized that the performance requirements in this specification
are valid for any material or combination of materials used as deck boards, guards, or handrails. For products made primarily from resin, or for products
that exhibit highly plastic properties (for example, more than 3% strain without rupture in a standard flexural test under ambient conditions), users are
directed to Specification D6662 for additional guidance.
1.3 Adeck board, and a deck board used as a stair tread, are assigned a span rating indicating its ability to comply with model
code specified functions identified for its specific end use.Aguard or handrail is recognized for its ability to meet minimum code
requirements specified in the appropriate model building code.
1.4 Details of manufacturing processes may be proprietary and are beyond the scope of this specification.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units, which are provided for information only.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
requirements prior to use.
1.7 Table of Contents:
Section
Scope 1
Referenced Documents 2
Terminology 3
General Requirements 4
Sampling 4.1
Sample Size 4.2
Conditioning 4.3
Flexural Tests 4.4
Temperature and Moisture Effects 4.5
Ultraviolet (UV) Resistance Test 4.6
Freeze-Thaw Resistance Test 4.7
Biodeterioration Tests 4.8
Fire Performance Tests 4.9
Deck Board Performance Requirements 5
General 5.1
Flexural Performance Tests 5.2
Determination of the Unadjusted Allowable Load 5.3
Creep-Recovery Test 5.4
Mechanical Fastener Holding Tests 5.5
Slip Resistance Test 5.6
Guard and Handrail Performance Requirements 6
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD07onWoodandisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineeredWood
Products.
Current edition approved AprilFeb. 1, 2007.2008. Published May 2007.February 2008. Originally approved in 2004. Last previous edition approved in 20062007 as
D7032-06a.D7032-07.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D7032–08
Section
General 6.1
Guardrail System Test Requirements 6.2
One- and Two-Family Dwelling Requirements 6.2.1.1
Handrail Test Requirements (Concentrated 6.3
Load)
Report 7
Independent Inspection 8
Manufacturing Standard 9
Precision and Bias 10
Keywords 11
Two-Span Test Method Annex
A1
Fire Propagation Test Methods Annex
A2
Commentary Appen-
dix X1
2. Referenced Documents
2
2.1 ASTM Standards:
D9 Terminology Relating to Wood and Wood-Based Products
D198 Test Methods of Static Tests of Lumber in Structural Sizes
D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
D883 Terminology Relating to Plastics
D1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials
D1413 Test Method for Wood Preservatives by Laboratory Soil-Block Cultures
D1554 Terminology Relating to Wood-Base Fiber and Particle Panel Materials
D1761 Test Methods for Mech
...
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