1、Designation: D7388 08 (Reapproved 2013)Standard Specification forEngine Coolant Grade 1,3-Propanediol (PDO)1This standard is issued under the fixed designation D7388; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A 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 specification covers engine coolant grade 1,3-propanediol (PDO).1.2 The values stated in SI units are to be regarded
3、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 theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine th
4、e applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1122 Test Method for Density or Relative Density ofEngine Coolant Concentrates and Engine Coolants By TheHydrometerD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D1287 Test Method
5、 for pH of Engine Coolants andAntirustsD3634 Test Method for Trace Chloride Ion in Engine 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 ChromatographyD59
6、31 Test Method for Density and Relative Density ofEngine Coolant Concentrates and Aqueous Engine Cool-ants by Digital Density MeterD6130 Test Method for Determination of Silicon and OtherElements in Engine Coolant by Inductively CoupledPlasma-Atomic Emission SpectroscopyE202 Test Methods for Analysi
7、s of Ethylene Glycols andPropylene GlycolsE300 Practice for Sampling Industrial Chemicals3. Requirements3.1 Engine coolant grade 1,3-propanediol shall conform tothe chemical and physical property requirements in Table 1.4. Sampling4.1 Sample 1,3-propanediol in accordance with the appro-priate sectio
8、ns of Practice E300 for liquid samples.5. Packaging, Package Marking, and Transportation5.1 The packaging, labeling, and transportation of commer-cial quantities shall conform to applicable federal, state, andlocal regulations. Conformance is the responsibility of themanufacturer and the shipper.6.
9、Keywords6.1 engine coolant; glycol; 1,3-propanediol; PDO1This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and Related Fluids and is the direct responsibility of SubcommitteeD15.07 on Specifications.Current edition approved Oct. 1, 2013. Published October 2013. Orig
10、inallyapproved in 2007. Last previous edition approved in 2008 as D3306-08. DOI:10.1520/D7388-08R13.2For 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 Do
11、cument Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1ASTM International takes no position respecting the validity of any patent rights
12、asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any tim
13、e by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will r
14、eceive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM I
15、nternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or th
16、rough the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Physical and Chemical RequirementsRequirement Values for PDO ASTM TestMethod1,3-Propanediol, mass % 99.0 min underdevelopmentDipropylene glyco
17、l, mass % 0.5 max E202Other glycols, mass % 0.2 max E202Total glycols, mass % 99.5 min E202pH at 50 % in DI water 6.00 9.00 D1287Relative density, 20/20C 1.0520 1.0540 D1122, D4052,D5931Water, mass % 0.5 max E202Acidity as acetic acid, mass % 0.01 max E202Glycol esters, mass %AAChloride ion, g/g (pp
18、m) 5 max D3634, D5827BSulfate ion, g/g (ppm) 10 max D3634Nitrite, nitrate, phosphate (total, g/g(ppm)10 max D3634Silicon, g/g (ppm) 1 mx D6130Boron, g/g (ppm) 10 max D6130Aluminum, calcium, copper, iron,magnesium, lead, zinc (total, g/g(ppm)5 max D6130Appearance Clear, no sus-pended matterE202Color,
19、 Pt/Co scale 25 max E202, D1209AA titration test method to determine glycol ester content is under development.Specific values will be established once the method has been standardized.However, this is an important property and until such time as specific values areincluded, a limit for glycol esters should be established by agreement between thesupplier and the customer.BIn case of dispute, Test Method D3634 shall be the preferred test method.D7388 08 (2013)2
