1、Designation:D655300(Reapproved 2010)Standard Test Method forCoolant Compatibility of Way Lubricants1This standard is issued under the fixed designation D6553;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A
2、 number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method measures the ability of single-use waylubricants to separate from metalworking coolants(syntheticcoolants,semisynthetic c
3、oolants,and soluble oils)or otheralkaline aqueous fluids.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsi
4、bility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specificwarning statements,see Section 7.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterD1401 Test Met
5、hod for Water Separability of Petroleum Oilsand Synthetic FluidsD4057 Practice for Manual Sampling of Petroleum andPetroleum Products3.Terminology3.1 Definitions:3.1.1 cuffa layer between the way oil layer and the coolantor buffer layer that contains significant amounts of both.Indescribing this int
6、ermediate layer,cuff is preferred to emulsionsince many of the coolants are themselves emulsions.4.Summary of Test Method4.1 This test procedure is essentially identical to TestMethod D1401,with the actual coolant or an alkaline bufferreplacing the distilled water of that test method.A 40-mLsample a
7、nd 40 mL of either actual coolant or a pH 9.0 buffersolution(see Note 1)are stirred for 5 min at 54C(see Note 2)in a graduated cylinder.The time required for the separation ofthe emulsion thus formed is recorded.If complete separation oremulsion reduction to 3 mL or less does not occur afterstanding
8、 for 30 min,the volumes of oil(or fluid),water,andemulsion remaining at the time are reported.NOTE1Distilled water is not a satisfactory aqueous phase for testingthe ability of way lubricants to separate from coolants because distilledwater gives different results from coolants.The best procedure is
9、 to use theactual coolant that the way lubricant will contaminate.Abuffer solution ofpH 9.0 may be used in place of a specific coolant to predict theseparability from alkaline coolants in general.NOTE2It is recommended,however,that the test temperature beraised to 82 6 1C when testing way lubricants
10、 more viscous than 90 cSt(mm 2/s)at 40C.5.Significance and Use5.1 In the normal use of a way lubricant in a machine tool,the way lubricant eventually becomes a contaminant that mayemulsify into the coolant.It is generally desirable to removethis contaminant by skimming;otherwise,the coolant lifetime
11、may be significantly shortened.This test method provides aguide for determining the separability characteristics of waylubricants that are expected to get into aqueous alkalinemetalworking coolants.It is used for specification of new oilsand might be useful in monitoring of in-service oils.6.Apparat
12、us6.1 Cylinder,100 mL,graduated from 5 to 100 mL in1.0-mL divisions,made of glass,heat-resistant glass,or achemical equivalent.The inside diameter shall be no less than27 mm and no more than 30 mm throughout its length,measured from the top to a point 6 mm from the bottom of thecylinder.The overall
13、length of the cylinder shall be 225 to 260mm.The graduation shall not be in error by more than 1 mL atany point on the scale.6.2 Heating Bath,sufficiently large and deep enough topermit the immersion of at least two test cylinders in the bathliquid up to their 85-mL graduations.The bath shall be cap
14、ableof being maintained at a temperature of 54 6 1C(see Note 2),and shall be fitted with clamps,which hold the cylinder in aposition so that the longitudinal axis of the paddle correspondsto the vertical center line of the cylinder during the stirring1This test method is under the jurisdiction of AS
15、TM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.L0.01 on Metal Removal Fluids and Lubricants.Current edition approved July 1,2010.Published November 2010.Originallyapproved in 2000.Last previous edition approved in 2005 as D655300(2005).DOI:10
16、.1520/D6553-00R10.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 operation.The clamps shall hold the cylinder securely while itscontents are being stirred.6.3 Stirring Paddle,made of chromium-plated or s