1、Designation: D7640 16Standard Specification forEngine Coolant Grade Glycerin1This standard is issued under the fixed designation D7640; 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 parenthe
2、ses 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 glycerine(1, 2, 3 Propanetriol, Glycerol).1.2 The values stated in SI units are to be regarded asstandard.
3、 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 the applica-b
4、ility 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 TheHydrometerD1119 Test Method for Percent Ash Content of EngineCoolantsD1209 Test Method for Color of Clear
5、Liquids (Platinum-Cobalt Scale)D1287 Test Method 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 forCh
6、loride and Other Anions by Ion ChromatographyD5931 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 Em
7、ission SpectroscopyD7637 Test Method for Determination of Glycerin Assay byTitration (Sodium Meta Periodate)D7638 Test Method for Determination of Fatty Acids andEsters in GlycerinD7716 Test Method for Determination of Residual Methanolin Glycerin by Gas ChromatographyE202 Test Methods for Analysis
8、of Ethylene Glycols andPropylene GlycolsE300 Practice for Sampling Industrial Chemicals3. Requirements3.1 Engine coolant grade glycerin shall conform to thechemical and physical property requirements in Table 1.4. Sampling4.1 Sample glycerin in accordance with the appropriatesections of Practice E30
9、0 for liquid samples.5. Packaging and Package Marking5.1 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. Keywords6.1 1, 2, 3 Propanetriol; e
10、ngine coolant; glycerin; glycerine;glycerol; glycol1This specification is under the jurisdiction of ASTM Committee D15 on EngineCoolants and Related Fluids and is the direct responsibility of SubcommitteeD15.07 on Specifications.Current edition approved July 1, 2016. Published August 2016. Originall
11、yapproved in 2011. Last previous edition approved in 2011 as D7640-11. DOI:10.1520/D7640-16.2For 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 S
12、ummary page onthe ASTM website.Copyright 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 asserted in connection with any item mentionedin this standard. Users of
13、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 time by the responsible technical committee and must be reviewed every five
14、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 receive careful consideration at a meeting of theresponsible technical com
15、mittee, 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1
16、9428-2959,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 through the ASTM website(www.astm.org). Permission rights to photocopy the
17、standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Chemical and Physical RequirementsRequirement Value for Glycerin ASTM Test MethodGlycerin, mass % 99.5 min D7637Methanol, g/g 10 max D7716Fatty Acids and Esters, mL 0
18、.5NNaOH consumed per 50 g sample1.0 max D7638Relative density, 25/25C 1.261, min D4052Water, mass % 0.5 max D1122Ash, mass % 0.01 D1119pH, 50 % solution 68 D1287Chloride ion, g/g 10 max D3634, D5827ASulfate ion, g/g 10 max D5827Nitrite, Nitrate, Phosphate (total, g/g) 10 max D5827Silicon, g/g 10 max D6130Iron, g/g 2 max D6130Boron, g/g 10 max D6130Aluminum, Calcium, Copper, Iron,Magnesium, Lead, Zinc (total, g/g)5 max D6130Appearance Clear, no suspended matter VisualColor, Pt/Co scale 25 max E202, D1209AIn case of dispute, D5827 shall be the preferred test method.D7640 162
