ASTM_C_1861_-_18.pdf

Designation:C186118Standard Specification forLathing and Furring Accessories,and Fasteners,for Interiorand Exterior Portland Cement-Based Plaster1This standard is issued under the fixed designation C1861;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification contains the minimum requirementsfor lathing and furring accessories,and fasteners,as compo-nents of interior and exterior portland cement-based plasterassemblies,used to facilitate lathing and furring installation(Specifications C1063,C1787),cement plaster application(Specification C926),and functionality of the completed stuccocladding assembly1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate,Sheet,and Strip for PressureVessels and for General ApplicationsA580/A580M Specification for Stainless Steel WireA641/A641M Specification for ZincCoated(Galvanized)Carbon Steel WireA653/A653M Specification for Steel Sheet,Zinc-Coated(Galvanized)or Zinc-Iron Alloy-Coated(Galvannealed)by the Hot-Dip ProcessB69 Specification for Rolled ZincB221 Specification for Aluminum and Aluminum-Alloy Ex-truded Bars,Rods,Wire,Profiles,and TubesC926 Specification for Application of Portland Cement-Based PlasterC954 Specification for Steel Drill Screws for theApplicationof Gypsum Panel Products or Metal Plaster Bases to SteelStuds from 0.033 in.(0.84 mm)to 0.112 in.(2.84 mm)inThicknessC1002 Specification for Steel Self-Piercing Tapping Screwsfor Application of Gypsum Panel Products or MetalPlaster Bases to Wood Studs or Steel StudsC1063 Specification for Installation of Lathing and Furringto Receive Interior and Exterior Portland Cement-BasedPlasterC1787 Specification for Installation of Non Metallic PlasterBases(Lath)Used with Portland Cement Based Plaster inVertical Wall ApplicationsD1784 Specification for Rigid Poly(Vinyl Chloride)(PVC)Compounds and Chlorinated Poly(Vinyl Chloride)(CPVC)CompoundsD4216 Specification for Rigid Poly(Vinyl Chloride)(PVC)and Related PVC and Chlorinated Poly(Vinyl Chloride)(CPVC)Building Products CompoundsF1667 Specification for Driven Fasteners:Nails,Spikes,andStaples3.Terminology3.1 Definitions:3.1.1 Definitions shall be in accordance with SpecificationC1063.3.2 Definitions of Terms Specific to This Standard:3.2.1 capture flange,nthe narrow flange element of alathing accessory that projects from a ground and returns ontothe exterior stucco cladding surface to conceal the gap betweenthe ground and stucco cladding.3.2.2 cement plaster panel area,nthe surface of a cementplaster area between lathing accessory grounds.3.2.3 drainage surface,nthe sloped or non-sloped,perfo-rated or non-perforated surface element of a lathing accessorythat facilitates a drainage function,by directing water frombehind the stucco cladding to the exterior of the stuccocladding.1This test method is under the jurisdiction ofASTM Committee C11 on Gypsumand Related Building Materials and Systems and is the direct responsibility ofSubcommittee C11.02 on Specifications and Test Methods for Accessories andRelated Products.Current edition approved April 15,2018.Published April 2018.Originallyapproved in 2017.Last previous edition approved in 2017 as C1861 17.DOI:10.1520/C1861-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.2.4 drip flange,nthe narrow flange element of a lathingaccessory that facilitates a drainage function,projects from adrainage surface and directs water to the exterior of the stuccocladding.3.2.5 fastener,na nail,screw,staple or power act