1、Designation: D801 02 (Reapproved 2017)Standard Test Methods forSampling and Testing Dipentene1This standard is issued under the fixed designation D801; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 These test methods cover procedures for sampling andtesting dipentene and related terpene solvents, consistingchiefly of monocyclic terpe
3、ne hydrocarbons distilling abovethe range for turpentine.1.2 The procedures given in these test methods appear in thefollowing order:SectionSampling 4Detection and Removal of Separated Water 5Appearance 6Color 7Odor 8Specific Gravity 9Refractive Index 10Composition 11Flash Point 12Moisture 131.3 The
4、 values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.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-priat
5、e safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopme
6、nt of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D268 Guide for Sampling and Testing Volatile Solvents andChemical Intermediates for Use in Paint and RelatedCoatings
7、 and MaterialD890 Test Method for Water in Liquid Pine ChemicalsD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D6166 Test Method for Color of Pine Chemicals and Re-lated Products (Instrumental Determination of GardnerColor)D6387 Test Methods for Composition of Turpentine andRela
8、ted Terpene Products by Capillary Gas Chromatogra-phyE300 Practice for Sampling Industrial Chemicals3. Significance and Use3.1 The testing procedures described in these test methodshave been in use for many years and emphasize the physicalproperties rather than the chemical composition of dipentene.
9、These procedures were sufficient when dipentene was usedprimarily as a solvent. Currently, however, dipentene findsapplication as a chemical raw material and a knowledge of itschemical composition is therefore important. Test MethodsD6387 describe a capillary gas chromatography method whichis suitab
10、le for determining both the major and minor compo-nents found in dipentene.4. Sampling4.1 Sample the material in accordance with the proceduredescribed in Guide D268 and Practice E300. If a sample fromclose to the bottom of a tank shows a decided difference incolor or appearance from samples taken a
11、t other depths, take anextra bottom sample and examine it separately from thecomposite sample. In such case the composite sample shall notinclude any portion of such bottom sample.5. Detection and Removal of Separated Water5.1 Draw a portion of the dipentene by means of a glass ormetal container wit
12、h a removable stopper or top,3or with athief, from the lowest part of the container, or by opening thebottom valve of the level tank car. If water is found to be1These test methods are under the jurisdiction of ASTM Committee D01 onPaint and Related Coatings, Materials, and Applications and are the
13、directresponsibility of Subcommittee D01.34 on Pine Chemicals and HydrocarbonResins.Current edition approved Dec. 1, 2017. Published December 2017. Originallyapproved in 1944. Last previous edition approved in 2013 as D801 02 (2013).DOI: 10.1520/D0801-02R17.2For referenced ASTM standards, visit the
14、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.3Detailed description of equipment suitable for such sampling is given inPractice E300.Copyright ASTM I
15、nternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standar
16、ds, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1present, draw it all out, record the quantity, and deduct it fromthe total volume of liquid delivered.6. Appearance6.1 Examine a portion of the sample after agitation todetermine its cl
17、arity and freedom from foreign matter andseparated water.7. Color7.1 Compare the color of the sample in any suitable ordesignated apparatus with the accepted or specific colorstandard. Accepted color standards are the Gardner color scalefound in Test Method D6166 and the platinum-cobalt scalefound i
18、n Test Method D1209.8. Odor8.1 Compare the odor of the sample with an agreed uponwater-free reference sample kept in the dark in a completelyfilled well-stoppered bottle. In the absence of such a referencesample, compare with samples of known purity similarlypreserved.8.2 The use of an odor panel ma
19、de up of personnel trainedto smell terpenic odors is recommended.9. Specific Gravity9.1 Determine the specific gravity at 15.6/15.6C by anyconvenient method, reporting the value to the nearest 0.0005.Correct determinations made at any other temperature, usingapparatus standardized at 15.6C by adding
20、 to or subtractingfrom the observed reading 0.00082 for each degree Celsius thatthe temperature of the liquid is above or below 15.6C.10. Refractive Index10.1 Determine the refractive index with an instrumenthaving a resolution of 60.0001 at 20C, if possible. If tested atany other temperature, corre
21、ct the reading obtained to 20C byadding or subtracting 0.00045 for each degree Celsius that thetemperature at which the determination was made is respec-tively above or below 20C.11. Composition11.1 Determine the component concentration of dipenteneusing gas chromatography. The referenced method (Te
22、st Meth-ods D6387) employs capillary column technology.12. Flash Point12.1 Determine the flash point by any acceptable meansagreed upon between the producer and the customer.13. Moisture13.1 The recommended method for the determination ofdissolved water uses the Karl Fischer reagent and is described
23、in Test Method D890. This method is more rapid than thedistillation method described in 13.2 and is applicable tooxidized products.13.2 Alternative MethodDistillation:13.2.1 The azeotropic distillation method described in theprocedure section of Test Method D890 can be used formoisture analysis of d
24、ipentene.14. Precision and Bias14.1 Some of the procedures described in these test methodswere developed many years ago and were once used widely forthe sampling and testing of dipentene. Currently these testmethods are less widely used and it is not considered practicalto determine the precision an
25、d bias of the individual testmethods at this time.14.2 Where reference is made to other ASTM test methods,these test methods should be examined to determine theirprecision and bias.15. Keywords15.1 dipentene; gas chromatography; samplingASTM International takes no position respecting the validity of
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28、our 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 hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is co
29、pyrighted 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 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 standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 02 (2017)2
