1、Designation:D468912(Reapproved 2018)Standard Specification forAdhesive,Casein-Type1This standard is issued under the fixed designation D4689;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 parent
2、heses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers casein and other protein-blendadhesives for
3、use adhering wood to wood.The adhesive typecovered by this specification is a dry powder or granularproduct comprising a mixture of casein,or casein and otherprotein source,with the necessary dry chemicals to effectsolution when the mixture is added to water.NOTE1Although the term casein adhesive is
4、 used throughout thisspecification,historically,the adhesive subclass described in 1.1 has beenknown as casein glue.See Terminology D907,adhesive types.1.2 LimitationsCooked casein adhesives are not coveredby this specification.1.3 The values stated in inch-pound units are to be regardedas standard.
5、The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 The following safety hazards caveat pertains only to thetest method portion,Sections 8 through 13,of this specifica-tion:This standard does not purport to
6、 address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety,health,and environmental practices and determine the appli-cability of regulatory limitations prior to use.1.5 This international standard was develo
7、ped 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 Documents
8、2.1 ASTM Standards:2D899 Practice for Applied Weight Per Unit Area of LiquidAdhesiveD905 Test Method for Strength Properties of AdhesiveBonds in Shear by Compression LoadingD906 Test Method for Strength Properties of Adhesives inPlywood Type Construction in Shear by Tension LoadingD907 Terminology o
9、f AdhesivesD1084 Test Methods for Viscosity of AdhesivesD2556 Test Method for Apparent Viscosity of AdhesivesHaving Shear-Rate-Dependent Flow Properties Using Ro-tational ViscometryD5266 Practice for Estimating the Percentage of WoodFailure in Adhesive Bonded JointsE104 Practice for Maintaining Cons
10、tant Relative Humidityby Means of Aqueous Solutions2.2 Other Standards:3MIL-STD-129 Marking for Shipment and StorageFED-STD-123 Marking for ShipmentPPP-C-96 Cans,Metal,28 Gage and LighterPPP-D-723 Drums,FiberPPP-D-729 Drums,Shipping and Storage,Steel,55 Gal(208 L)3.Terminology3.1 DefinitionsMany ter
11、ms in this specification are de-fined in Terminology D907.3.2 Definitions of Terms Specific to This Standard:3.2.1 lot,nadhesive manufactured at one place from thesame batch or blends of raw materials subjected to the sameoperation and conditions.NOTE2In this specification,the maple block lamination
12、 in TestMethod D905 and the birch plywood construction in Test Method D906are described as assemblies.4.Significance and Use4.1 This specification provides testing procedures and speci-fies requirements to differentiate the physical,adhesive,anddurability properties of commercially available casein
13、andcasein-protein adhesives.The two classes are defined by water1This specification is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.30 on WoodAdhesives.Current edition approved Aug.1,2018.Published August 2018.Originallyapproved in 198
14、7.Last previous edition approved in 2012 as D4689 12.DOI:10.1520/D4689-12R18.2For 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 AS
15、TM website.3Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/dodssp.daps.dla.mil.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was develo
16、ped 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 resistance.Selection of class is left to the choice of the productmanufacturer and the consumer,based on measures used byeach to protect the bond line from moisture degradation.NOTE3Because of strict EPA requirements as to
