ASTM D801-2002 Standard Test Methods for Sampling and Testing Dipentene《二聚戊烯抽样和测试的试验方法》.pdf

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1、Designation: D 801 02Standard Test Methods forSampling and Testing Dipentene1This standard is issued under the fixed designation D 801; 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 (e) 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 terpene hydrocarbons

3、 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 This standard does

4、 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. Referenced Documents2.1 ASTM Stand

5、ards:D 268 Guide for Sampling and Testing Volatile Solventsand Chemical Intermediates for Use in Paint and RelatedCoatings and Materials2D 890 Test Method for Water in Liquid Naval Stores3D 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)2D 6166 Test Method for Color of Naval Stor

6、es and RelatedProducts (Instrumental Determination of Gardner Color)3D 6387 Test Methods for Composition of Turpentine andRelated Terpene Products by Capillary Gas Chromatogra-phy3E 300 Practice for Sampling Industrial Chemicals43. Significance and Use3.1 The testing procedures described in these te

7、st methodshave been in use for many years and emphasize the physicalproperties rather than the chemical composition of dipentene.These procedures were sufficient when dipentene was usedprimarily as a solvent. Currently, however, dipentene findsapplication as a chemical raw material and a knowledge o

8、f itschemical composition is therefore important. Test MethodsD 6387 describe a capillary gas chromatography method whichis suitable 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 D 268 and

9、 Practice E 300. If a sample fromclose to the bottom of a tank shows a decided difference incolor or appearance from samples taken at 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 bo

10、ttom sample.5. Detection and Removal of Separated Water5.1 Draw a portion of the dipentene by means of a glass ormetal container with a removable stopper or top,5or with athief, from the lowest part of the container, or by opening thebottom valve of the level tank car. If water is found to bepresent

11、, 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 clarity and freedom from foreign matter andseparated water.7. Color7.1 Compare the color of the sample in any suitable ordes

12、ignated apparatus with the accepted or specific color1These test methods are under the jurisdiction of ASTM Committee D01 onPaint and Related Coatings, Materials, and Applications and are the directresponsibility of Subcommittee D01.34 on Naval Stores.Current edition approved May 10, 2002. Published

13、 July 2002. Originallypublished as D 801 44. Last previous edition D 801 97.2Annual Book of ASTM Standards, Vol 06.04.3Annual Book of ASTM Standards, Vol 06.03.4Annual Book of ASTM Standards, Vol 15.05.5Detailed description of equipment suitable for such sampling is given inPractice E 300.1Copyright

14、 ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.standard. Accepted color standards are the Gardner color scalefound in Test Method D 6166 and the platinum-cobalt scalefound in Test Method D 1209.8. Odor8.1 Compare the odor of the sample with a

15、n 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 made up of personnel trainedto smell terpenic odors is recommended.9.

16、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 to or subtractingfrom the observed reading 0.00082 for each degree

17、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, correct the reading obtained to 20C byadding or subtracting 0.00045 for e

18、ach 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 (Test Meth-ods D 6387) employs capillary column technology.12. Flash Po

19、int12.1 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 describedin Test Method D 890. This method is more rapid than thedistillatio

20、n 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 D 890 can be used formoisture analysis of dipentene.14. Precision and Bias14.1 Some of the procedures descri

21、bed 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 and bias of the individual testmethods at this time.14.2 Where refe

22、rence 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 any patent rights asserted in connection with any item mentioned

23、in 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 time by the responsible technical committee and m

24、ust 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 receive careful consideration at a meeting of t

25、heresponsible 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 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).D 8012