1、Designation: E 2470 07Standard Specification forPolyester Grade Ethylene Glycol1This standard is issued under the fixed designation E 2470; 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 pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers polyester grade ethylene gly-col.1.2 The following safety hazards caveat pertains only to thetest methods portion, Section
3、 5, described in this specification:This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations
4、prior to use.1.3 Review the current Materials Safety Data Sheets(MSDS) for detailed information comcerning toxicity, first aidprocedures, handling and safety precautions.1.4 The following applies to all specified limits in thisstandard; for purposes of determining conformance with thisstandard, an o
5、bserved value or a calculated value shall berounded off “to the nearest unit” in the last right-hand digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E29.1.5 The values stated in SI units are to be regarded as thestandard.2. Referenced Documents2
6、.1 ASTM Standards:2D 482 Test Method for Ash from Petroleum Products3D 1078 Test Method for Distillation Range of VolatileOrganic Liquids4D 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)4D 1613 Test Method for Acidity in Volatile Solvents andChemical Intermediates Used in Paint,
7、 Varnish, Lacquer,and Related Products4D 1722 Test Method for Water Miscibility of Water-SolubleSolvents3D 4052 Test Method for Density and Relative Density ofLiquids by Digital Density Meter3D 4176 Test Method for Free Water and Particulate Con-tamination in Distillate Fuels (Visual Inspection Proc
8、e-dures)3E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 202 Test Methods for Analysis of Ethylene Glycols andPropylene Glycols4E 300 Practice for Sampling Industrial ChemicalsE 1064 Test Method for Water in Organic Liquids byCoulometric Karl Fisch
9、er Titration5E 1615 Test Method for Iron in Trace Quantities Using theFerroZine Method5E 2193 Test Method for Ultraviolet Transmittance of Mo-noethylene Glycol (Ultraviolet SpectrophotometricMethod)5E 2313 Test Method for Aldehydes in Mono-, Di-, andTriethylene Glycol (Spectrophotometric Method)5E 2
10、409 Test Method for Glycol Impurities in Mono-, Di-,Tri- and Tetraethylene Glycol (Gas ChromatographicMethod)5E 2469 Test Method for Chloride in Monoethylene Glycolby Ion Chromatography53. Requirements3.1 Polyester grade ethylene glycol shall conform to thespecification chemical and physical require
11、ments (see Table 1).4. Sampling4.1 Sample ethylene glycol in accordance with the appro-priate sections of Practice E 300 for liquid samples.5. Test Methods5.1 Test each composite sample for chemical and physicalrequirements using the test methods specified in 3.1. Many ofthese test methods, along wi
12、th alternative test methods and1This specification is under the jurisdiction of ASTM Committee E15 onIndustrial and Specialty Chemicals and is the direct responsibility of SubcommitteeE15.02 on Product Standards.Current edition approved Jan. 1, 2007. Published January 2007.2For referenced ASTM stand
13、ards, 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.3The precision estimates for the analysis of glycols using these test methods hasnot be
14、en determined.4The precision estimates for the analysis of glycols using these test methods arebased on an interlaboratory study performed in 1962/62. Specific information foreach method can be found in Test Methods E 202.5The precision estimates for the analysis of glycols using these test methods
15、areto be determined or updated in an Interlaboratoy Study planned for 2006/07.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.technologies, can be found in Test Methods E 202. In case ofa dispute, test methods identified in 3.1 of th
16、is specificationshall be the preferred test methods.6. Packaging, Package Markings, and Transportation6.1 The packaging, labeling, and transportation of commer-cial quantities shall conform to applicable federal, state, andlocal regulation. Conformance is the responsibility of themanufacturer and th
17、e shipper.7. Keywords7.1 ethylene glycol; polyester gradeASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such paten
18、t 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 years andif not revised, either reapproved or withdrawn. Your comments are invited eithe
19、r 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 committee, which you may attend. If you feel that your comments have not received a fair he
20、aring 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 19428-2959,United States. Individual reprints (single or multiple copies) of this standar
21、d 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).TABLE 1 Chemical and Physical Specification RequirementsSpecification Requirements min max ASTM Test MethodAcidity as Acetic
22、 Acid, % mass (m/m) 0.002 D 1613Aldehydes as Acetaldehyde, ug/g not reported E 2313Appearance, Clear & Free from Suspended Matter pass D 4176Chloride as Cl, ug/g 0.2 E 2469Color, platinum cobalt 5 D 1209GlycolsEthylene glycol, % mass (m/m)Diethylene glycol, % mass (m/m)99.90.05E 2409Iron, ug/g 0.1 E
23、 1615Ultraviolet Transmittanceat 220 nm, %Tat 250 nm, %Tat 275 nm, %Tat 350 nm, %T70909498E 2193Water, % mass (m/m) 0.05 E 1064Typical Properties min max ASTM Test MethodAsh, % mass (m/m) 0.004 D 482Distillation RangeInitial Boiling Point, CDry Point, C196200D 1078Relative Density at20/20 Cor25/25 C1.1151or1.11291.1156or1.1134D 4052Water Miscibility miscible D 1722E2470072
