1、Designation:A62703(Reapproved 2011)Standard Test Methods forTool-Resisting Steel Bars,Flats,and Shapes for Detentionand Correctional Facilities1This standard is issued under the fixed designation A627;the number immediately following the designation indicates the year oforiginal adoption or,in the c
2、ase 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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These test
3、 methods cover requirements for simulatedservice tests and testing equipment for determining the perfor-mance characteristics of various types and shapes of steelsdesignated for use in detention and correctional facilities asfixed barriers to prevent egress and to control passage.1.2 It is the inten
4、t of these test methods to help ensure thatopening assemblies such as detention security windows,grilles,bar grating,and other physical barriers incorporatingsteel bars perform at or above minimum acceptable levels forcontrol of passage to unauthorized or secure areas,for confine-ment of inmates and
5、 to delay or frustrate escape attempts.Tomeet the intent of these test methods,opening assembles mustperform to grade requirements shown in Tables X1.1 and X1.2in Appendix X1.1.3 These test methods apply primarily to the steels used asessential components of detention security windows,grilles,bar gr
6、ating,and so forth,in opening assemblies enclosing orseparating secure areas of detention/correctional facilities.1.4 The values stated in inch-pound units are to be regardedas standard.The SI values given in parentheses are forinformation only.1.5 This standard updates and combines two previousstan
7、dards,ASTM Specifications A627-95 and A629-94,estab-lishing new security grades and time durations.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health p
8、ractices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A629 Specification for Tool-Resisting Steel Flat Bars andShapes for Security Applications(Withdrawn 2004)3C39/C39M Test Method for Compressive Strength of Cylin-drical Concrete
9、SpecimensE4 Practices for Force Verification of Testing MachinesE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE329 Specification for Agencies Engaged in ConstructionInspection,Testing,or Special Inspection3.Terminology3.1 Definitions:3.1.1 bars,nround,ribbed,hexagonal,or other shapedb
10、ars that can be readily reduced to a round cross-sectionalshape,78-in.(22.2-mm)or 1-in.(25.4-mm)diameter(see Fig.1).Also flat bars:14by 2 in.(6.4 by 50.8 mm);516by 214in.(7.9 by 57.2 mm)or38by 212in.(9.6 by 63.5 mm).3.1.2 composite tool-resisting steel bar/flat,na bar/flatthat is a composite of a tu
11、ngsten carbide or other hard material,for cutting resistance and of a high strength,low alloy steel,heat treated up to HRC 45 max.hardness for impact anddeflection resistance.3.1.3 cutting test,na simulated service test in which therating is based on the number of a specific type of tungstencarbide
12、rod saws required to cut through the bar.3.1.4 effective tool-resisting(ETR)area,nthe cross-sectional area of the portion of the bar that is tool resistant.3.1.5 equipment manufacturer,na manufacturer who fab-ricates and assembles security products,including tool-resisting steel bars,for installatio
13、n in areas requiring securityagainst ingress and egress.This manufacturer processes the1This specification is under the jurisdiction of ASTM Committee F33 onDetention and Correctional Facilities and is the direct responsibility of Subcommit-tee F33.02 on Physical Barriers.Current edition approved Ju
14、ly 1,2011.Published September 2011.Originallyapproved in 1968.Last previous edition approved in 2003 as A627 03.DOI:10.1520/A0627-03R11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume inform
15、ation,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 semi-finished bar and fabricates fin
16、ished products suitable foruse in opening assemblies requiring these specified perfor-mance characteristics.This manufacturer is also responsiblefor heat treating,fabricating,and assembling all ancillary itemsso as not to impair the performance characteristics of thebar/flat.3.1.6 hardness,nindicated as HRC,refers to hardnessmeasured according to Test Methods E18 on the Rockwell Cscale.3.1.7 homogeneous tool-resisting bar/flat,na bar/flat thatis nominally of uniform chemistry throughout,usually
