ASTMD217-02

Designation:D 217-02An American Nafional StandardINTERNATIONALIPDesignation:50/88Standard Test Methods forCone Penetration of Lubricating Grease1This standard is issued under the fi xed designation D217;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 (e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.3 The dimensions of the equipment described in these test1.1 These test methods cover four procedures for measuringmethods are given in inches and fractions of an inch.Thesethe consistency of lubricating greases by the penetration of aunits were retained because a vast body of data has beencone of specifi ed dimensions,mass,and fi nish.The penetrationobtained using equipment with the dimensions shown.Metricis measured in tenths of a millimetreequivalency tables are provided with each fi gure.Temperaturesand other dimensions are given in the preferred SI units;theNorE 1-The National Lubricating Grease Institute2 (NLGI)classifi edvalues shown in parentheses are provided for information.greases according to their consistency as measured by the workedpenetration.The classifi cation system is as follows:1.4 This standard does not purport to address all of theNLGIWorked Penetration Rangesafety concerns,if any,associated with its use.It is theConsistency Number25C(7T月responsibility of the user of this standard to establish appro-000445D475priate safety and health practices and determine the applica-00400b4300355o385bility of regulatory limitations prior to use.1310b340285D2952.Referenced Documents3220b2502.1 ASTM Standards:4175o2055130o160D 937 Test Method for Cone Penetration of Petrolatum3885to115D 1403 Test Methods for Cone Penetration of Lubricating1.1.1 The procedures for unworked,worked,and prolongedGrease Using One-Quarter and One-Half Scale Coneworked penetration are applicable to greases having penetra-Equipmenttions between 85 and 475,that is,to greases with consistencynumbers between NLGI 6 and NLGI 000.An undisturbed3.Terminologypenetration test,described in Appendix X1,is similar to the3.1 Defnitions:unworked penetration test.3.1.1 consistency,nof lubricating grease,the degree of1.1.2 The block penetration procedure is applicable toresistance to movement under stress.greases that are sufficiently hard to hold their shape.Such3.1.1.1 Discussion-The term consistency is used some-greases usually have penetrations below eighty-five tenths of awhat synonymously with penetration.Generally,consistencymillimetre.refers to the worked penetration of a grease.1.2 None of the four procedures is considered suitable for3.1.2 lubricant,nany material interposed between twothe measurement of the consistency of petrolatums by penetra-surfaces that reduces the friction or wear betwe