ASTM D802-2002(2017) Standard Test Methods for Sampling and Testing Pine Oils《松油取样和试验的标准试验方法》.pdf

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1、Designation: D802 02 (Reapproved 2017)Standard Test Methods forSampling and Testing Pine Oils1This standard is issued under the fixed designation D802; 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 pine oils, and are applicable to both natural pine oilsderived from pine stum

3、ps either by the steam and solventprocess or by destructive distillation, and also to synthetic pineoils obtained by the chemical hydration of terpene hydrocar-bons.1.2 The procedures given in these test methods appear in thefollowing order:SectionSampling 4Appearance 5Color 6Specific Gravity 7Refra

4、ctive Index 8Composition 9Moisture 101.3 The 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 us

5、er of this standard to establish appro-priate 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

6、 the Decision on Principles for theDevelopment 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 Interm

7、ediates for Use in Paint and RelatedCoatings and MaterialD803 Test Methods for Testing Tall OilD890 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 Dete

8、rmination of GardnerColor)D6387 Test Methods for Composition of Turpentine andRelated 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 e

9、mphasize the physicalproperties of pine oil rather than its chemical composition. TestMethods D6387 describe a capillary gas chromatographymethod which is suitable for determining both the major andminor components found in pine oils.4. Sampling4.1 Sample the material in accordance with the procedur

10、edescribed in Guide D268 and Practice E300.5. Appearance5.1 Examine a portion of the sample after agitation todetermine its clarity and freedom from foreign matter andseparated water.6. Color6.1 Compare the color of the sample in any suitable ordesignated apparatus with the accepted or specific colo

11、rstandard. Accepted color standards are the Gardner color scalefound in Test Method D6166 and the platinum-cobalt scalefound in Test Method D1209.7. Specific Gravity7.1 Determine the specific gravity at 15.6/15.6C by anyconvenient method, reporting the value to the nearest 0.0005.(A pycnometer or sp

12、ecific gravity balance is recommended. Ahydrometer should not be used, on account of errors caused by1These 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 Pine Chemical

13、s and HydrocarbonResins.Current edition approved Dec. 1, 2017. Published December 2017. Originallyapproved in 1944. Last previous edition approved in 2013 as D802 02 (2013).DOI: 10.1520/D0802-02R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service

14、at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accor

15、dance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1surface tension on the hydromete

16、r stem.) Correct determina-tions made at any other temperature, using apparatus standard-ized at 15.6C by adding to or subtracting from the observedreading 0.00080 for each degree Celsius that the temperature ofthe liquid is above or below 15.6C.8. Refractive Index8.1 Determine the refractive index

17、with an instrument hav-ing a resolution of 60.0001 at 20C, if possible. If tested at anyother temperature, correct the reading obtained to 20C byadding or subtracting 0.00045 for each degree Celsius that thetemperature at which the determination was made is,respectively, above or below 20C.9. Compos

18、ition9.1 Determine the component concentration of pine oil byusing the referenced method (Test Methods D6387) whichemploys a capillary column technology.10. Moisture10.1 The recommended method for measuring the moisturecontent of pine oil is the use of the Karl Fischer reagent and isdescribed in Tes

19、t Method D890. This test method is more rapidand more reliable than the alternative method described in10.2.10.2 Alternative Method, Distillation:10.2.1 The azeotropic distillation method described in theprocedure section of Test Methods D803 can be used formoisture analysis of pine oil.NOTE 1It is

20、important that the flask be scrupulously clean. If it showsany white deposits (such as might be caused from attack by alkalies duringprevious use), the percentage of water may be erroneously high due to aslight decomposition of the terpene alcohols in the pine oil.11. Precision and Bias11.1 Some of

21、the procedures described in these test methodswere developed many years ago and were once used widely forthe sampling and testing of pine oils. Currently these testmethods are less widely used and it is not considered practicalto determine the precision and bias of the individual methodsat this time

22、.11.2 Where reference is made to other ASTM test methods,these test methods should be examined to determine theirprecision and bias.12. Keywords12.1 gas chromatography; pine oils; samplings; terpenealcoholsASTM International takes no position respecting the validity of any patent rights asserted in

23、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 time by the res

24、ponsible 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 receive caref

25、ul 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 International

26、, 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