1、Designation:D771312Standard Specification forAqueous Engine Coolant Grade Glycol(53%Nominal)1This standard is issued under the fixed designation D7713;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、 in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers both commercial products,engine coolant grade ethylene glycol and propylene glycol,including virgin glycols and those d
3、erived from the recyclingof vehicle engine coolants and industrial source glycols.1.2 Types EG-1 and PG-1 cover glycols with sufficientlylow limits on components to allow a blended coolant to meetmost OEM(Original Equipment Manufacturer)specifications.These types will probably be virgin materials,al
4、though redis-tillation could produce a sufficiently pure product.Types EG-2and PG-2 cover glycol that will be suitable for many coolants.These types can be either redistilled or virgin.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thiss
5、tandard.1.4 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 practices and determine the applica-bility of regulatory limitations prior to use.2.Referenc
6、ed Documents2.1 ASTM Standards:2D1122 Test Method for Density or Relative Density ofEngine Coolant Concentrates and Engine Coolants By TheHydrometerD1123 Test Methods for Water in Engine Coolant Concen-trate by the Karl Fischer Reagent MethodD1177 Test Method for Freezing Point of Aqueous EngineCool
7、antsD1209 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)D1287 Test Method for pH of Engine Coolants andAntirustsD1613 Test Method for Acidity in Volatile Solvents andChemical Intermediates Used in Paint,Varnish,Lacquer,and Related ProductsD3634 Test Method for Trace Chloride Ion in En
8、gine Cool-antsD4052 Test Method for Density,Relative Density,and APIGravity of Liquids by Digital Density MeterD5827 Test Method for Analysis of Engine Coolant forChloride and Other Anions by Ion ChromatographyD5931 Test Method for Density and Relative Density ofEngine Coolant Concentrates and Aqueo
9、us Engine Cool-ants by Digital Density MeterD6130 Test Method for Determination of Silicon and OtherElements in Engine Coolant by Inductively CoupledPlasma-Atomic Emission SpectroscopyD6660 Test Method for Freezing Point of Aqueous EthyleneGlycol Base Engine Coolants by Automatic Phase Tran-sition M
10、ethodD7638 Test Method for Determination of Fatty Acids andEsters in GlycerinE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE202 Test Methods for Analysis of Ethylene Glycols andPropylene GlycolsE300 Practice for Sampling Industrial ChemicalsE394 Test Method for Iron in Tra
11、ce Quantities Using the1,10-Phenanthroline MethodE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE1177 Specification for Engine Coolant Grade Glycol3.Requirements3.1 Engine coolant grade 53%(nominal)ethylene glycol orpropylene glycol shall conform to t
12、he chemical and physicalproperty requirements in Table 1.4.Sampling4.1 Sample ethylene or propylene glycol in accordance withthe appropriate sections of Practice E300 for liquid samples.5.Packaging,Package Markings,and Transportation5.1 The packaging,labeling,and transportation of commer-cial quanti
13、ties shall conform to applicable federal,state,and1This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and Related Fluids and is the direct responsibility of SubcommitteeD15.15 on Recycled Engine Coolant.Current edition approved May 1,2012.Published June 2012.Original
14、lyapproved in 2011.Last previous edition approved in 2011 as D 7713 11.DOI:10.1520/D771312.2For 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
15、 page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 local regulations.Conformance is the responsibility of themanufacturer and the shipper.6.Precision and Bias6.1 The precision of this test method is based on aninterl
16、aboratory study of WK25513 Standard Specification forAqueous Engine Coolant Grade Glycol(53%nominal),con-ducted in 2010.Each of eight laboratories tested three differentmaterials.Every“test result”represents an individual determi-nation.All laboratories were asked to report three test resultsfrom a single operator,for every material.Except for theinability of all participants to report all requested replicates,Practice E691 was followed for the design and analysis of thedata;the details are give
