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21、-mar k of the Canadian S tandards Association, operating as “CSA Group”Poplar plywoodO153-13O153-13Poplar plywoodJanuary 2013 2013 CSA Group1ContentsTechnical Committee on Wood-Based Panels 3Preface 51 Scope 62 Reference publications 63 Definitions 74 Quality system 105 Materials 115.1 Veneers 115.1
22、.1 Species 115.1.2 Permitted characteristics 115.1.3 Jointing 115.2 Adhesives 115.3 Patching materials 116 Construction and bonding 116.1 Standard construction 116.1.1 Ply thickness 116.1.2 Layup 126.1.3 Joints 126.2 Modified construction 126.2.1 Ply thickness 126.2.2 Layup 126.2.3 Joints 126.3 Bond
23、ing 136.3.1 General 136.3.2 Shear test 136.3.3 Heat durability test 136.3.4 Overlay bond test 136.3.5 Joint tests 137 Specific grades of plywood 147.1 General 147.2 Sanded grades 147.2.1 General 147.2.2 A-A 147.2.3 A-B 147.2.4 A-BB 147.2.5 A-Industrial 147.2.6 A-Utility 147.2.7 A-C 147.2.8 B-B 14O15
24、3-13Poplar plywoodJanuary 2013 2013 CSA Group27.2.9 B-BB 147.2.10 B-Industrial 157.2.11 B-Utility 157.2.12 B-C 157.2.13 BB-BB 157.2.14 BB-Industrial 157.2.15 BB-Utility 157.2.16 BB-C 157.2.17 Industrial two sides 157.2.18 Industrial-utility 157.2.19 Industrial one side 157.2.20 Utility two sides 167
25、.2.21 Utility one side 167.3 Sheathing grades 167.3.1 General 167.3.2 Select sheathing 167.3.3 Standard sheathing 167.4 Overlaid grades 167.4.1 General 167.4.2 High density overlaid (HDO) 167.4.3 Medium density overlaid (MDO) two sides 167.4.4 Medium density overlaid (MDO) one side 167.5 Specialty p
26、anels 177.6 Shop Panels 178 Dimensions and tolerances 178.1 General 178.2 Width and length 178.3 Panel thickness 178.4 Ply thickness 178.5 Squareness 188.6 Straightness 189 Identification and marking 189.1 Required marking 189.2 Optional marking 199.3 Marking location 199.4 Degrade panels 19Annex A
27、(normative) Veneer and panel characteristics and defects 22Annex B (normative) Test procedures 26Annex C (normative) High density overlay and medium density overlay plywood 32Annex D (informative) Common industry practices 34O153-13Poplar plywoodJanuary 2013 2013 CSA Group3Technical Committee on Woo
28、d-Based PanelsN. Nagy CertiWood Technical Centre, North Vancouver, British ColumbiaRepresenting ManufacturersChairD. Anderson A.F.A Forest Products Inc, Surrey, British ColumbiaJ. Andrews Richmond Plywood Corporation Limited, Richmond, British ColumbiaRepresenting ManufacturersK. Blau Tolko Industri
29、es Ltd, Vernon, British ColumbiaRepresenting ManufacturersS. Bradic Alberta Plywood A division of West Fraser Mills Ltd, Edmonton, AlbertaRepresenting ManufacturersR. Desjardins FPInnovations, Qubec, QubecAssociateB. Di Lenardo Canadian Construction Materials Centre, Ottawa, OntarioM. Feng FPInnovat
30、ions, Vancouver, British ColumbiaRepresenting General InterestsF. Hill BCIT-School of Construction and the Environment, Burnaby, British ColumbiaRepresenting General InterestsC. Howes Yolles, A CH2M HILL Company, Toronto, OntarioRepresenting General InterestsP. Jaehrlich CertiWood Technical Centre,
31、North Vancouver, British ColumbiaAssociateO153-13Poplar plywoodJanuary 2013 2013 CSA Group4A. Kempthorne Delta, British ColumbiaK. Lau Ainsworth Engineered Canada LP, Vancouver, British ColumbiaRepresenting ManufacturersA. LeBlanc ALC Incorporated, Toronto, OntarioD. Lefebvre PolyDM, Qubec, QubecRep
32、resenting General InterestsD. Moses Moses Structural Engineers Inc, Toronto, OntarioF. Saillant Canadian Forest Service/Natural Resources Canada, Ottawa, OntarioRepresenting General InterestsK. Stochlia ICC Evaluation Service, LLC, Whittier, California, USAAssociateS. Zylkowski APA - The Engineered
33、Wood Association, Tacoma, West Virginia, USAAssociateD. Torrey CSA Group, Mississauga, OntarioProject ManagerO153-13Poplar plywoodJanuary 2013 2013 CSA Group5PrefaceThis is the fourth edition of CSA O153, Poplar plywood. It supersedes the previous editions published in 1980, 1976, and 1963.Changes i
34、n the fourth edition include the following:a) format changes for consistency with other recent CSA plywood standards;b) increased detail for panel and veneer grade requirements;c) increased emphasis and clarity on performance requirements for utilized adhesives, including removal of Interior Bond;d)
35、 requirement for in-plant production and quality control procedures, including auditing by a recognized third-party agency;e) increased detail for some test procedures;f) updated requirements for marking; andg) revisions to informative annex related to shipment re-inspection.This Standard was prepar
36、ed by the Technical Committee on Wood-Based Panels, under the Strategic Steering Committee on Construction and Civil Infrastructure, and has been formally approved by the Technical Committee.Notes:1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.2) Although t
37、he intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.3) This Standard was developed by consensus, which is defined by CSA Policy governing
38、 standardization Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreeme
39、nt with all clauses of this Standard.4) To submit a request for interpretation of this Standard, please send the following information to inquiriescsagroup.org and include “Request for interpretation” in the subject line:a) define the problem, making reference to the specific clause, and, where appr
40、opriate, include an illustrative sketch;b) provide an explanation of circumstances surrounding the actual field condition; andc) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the
41、 CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.5) This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal fo
42、r change, please send the following information to inquiriescsagroup.org and include “Proposal for change” in the subject line:a) Standard designation (number);b) relevant clause, table, and/or figure number;c) wording of the proposed change; andd) rationale for the change.O153-13Poplar plywoodJanua
43、ry 2013 2013 CSA Group6O153-13Poplar plywood1 Scope1.1 This Standard applies to exterior bond, all-veneer plywood with a minimum of three plies and parallel grain direction of the face and back plies.1.2 This Standard specifies requirements fora) a quality system;b) materials;c) panel construction;d
44、) bonding;e) veneer and panel grades;f) dimensions and tolerances;g) marking; andh) testing.1.3 In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that
45、 which is advised but not required; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note acc
46、ompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.2 Re
47、ference publicationsThis Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below, including all amendments published thereto.CSA GroupO86-09 Engineering design in woodO11210Evaluation of adhesives for structural wood products (exterior
48、 exposure)O153-13Poplar plywoodJanuary 2013 2013 CSA Group 7FPInnovationsSP-18R (1986) Evaluation procedures for synthetic patching materials for repairs to plywood panelsISO/IEC (International Organization for Standardization/International Electrotechnical Commission)ISO/IEC Guide 65:1996 General r
49、equirements for bodies operating product certification systemsISO/IEC 17065Conformity assessment - Requirements for bodies certifying products, processes and servicesNIST (National Institute of Standards and Technology)PS 1-09 Structural Plywood3 DefinitionsThe following definitions apply in this Standard:Back the lower-quality side of a panel in a grade of plywood whose outer plies are of different veneer grades.Bark pocket an opening between growth rings that contains bark.Blister/delamination an area of separation between plies due to lack
