ASTM D802-2002 Standard Test Methods for Sampling and Testing Pine Oils《松油抽样和测试的标准试验方法》.pdf

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1、Designation: D 802 02Standard Test Methods forSampling and Testing Pine Oils1This standard is issued under the fixed designation D 802; 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 pine oils, and are applicable to both natural pine oilsderived from pine stumps either by th

3、e 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 7Refractive Index 8Co

4、mposition 9Moisture 101.3 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-bility of regulatory limitations prior

5、to use.2. Referenced Documents2.1 ASTM Standards:D 268 Guide for Sampling and Testing Volatile Solventsand Chemical Intermediates for Use in Paint and RelatedCoatings and Materials2D 803 Test Methods for Testing Tall Oil3D 890 Test Method for Water in Liquid Naval Stores3D 1209 Test Method for Color

6、 of Clear Liquids (Platinum-Cobalt Scale)2D 6166 Test Method for Color of Naval Stores and RelatedProducts (Instrumental Determination of Gardner Color)3D 6387 Test Methods for Composition of Turpentine andRelated Terpene Products by Capillary Chromatography3E 300 Practice for Sampling Industrial Ch

7、emicals43. Significance and Use3.1 The testing procedures described in these test methodshave been in use for many years and emphasize the physicalproperties of pine oil rather than its chemical composition. TestMethods D 6387 describe a capillary gas chromatographymethod which is suitable for deter

8、mining both the major andminor components found in pine oils.4. Sampling4.1 Sample the material in accordance with the proceduredescribed in Guide D 268 and Practice E 300.5. Appearance5.1 Examine a portion of the sample after agitation todetermine its clarity and freedom from foreign matter andsepa

9、rated water.6. Color6.1 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 D 6166 and the platinum-cobalt scalefound in Test Method D 1209.7. Specific Gravity7.1

10、Determine the specific gravity at 15.6/15.6C by anyconvenient method, reporting the value to the nearest 0.0005.(A pycnometer or specific gravity balance is recommended. Ahydrometer should not be used, on account of errors caused bysurface tension on the hydrometer stem.) Correct determina-tions mad

11、e 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 with an instrument hav-ing a resolut

12、ion of 60.0001 at 20C, if possible. If tested at any1These 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 J

13、uly 2002. Originallypublished as D 802 44 T. Last previous edition D 802 97.2Annual Book of ASTM Standards, Vol 06.04.3Annual Book of ASTM Standards, Vol 06.03.4Annual Book of ASTM Standards, Vol 15.05.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-295

14、9, United States.other 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, respec-tively, above or below 20C.9. Composition9.1 Determine the component concentration of pine oil byusing th

15、e referenced method (Test Methods D 6387) 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 Test Method D 890. This test method is more rapidand more reliable than

16、 the alternative method described in10.2.10.2 Alternative Method, Distillation10.2.1 The azeoitropic distillation method described in theprocedure section of Test Methods D 803 can be used formoisture analysis of pine oil.NOTE 1It is important that the flask be scrupulously clean. If it showsany whi

17、te 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 the procedures described in these test methodswere developed many

18、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.11.2 Where reference is made to other ASTM test methods,these tes

19、t methods should be examined to determine theirprecision and bias.12. Keywords12.1 gas chromatography; pine oil; sampling; terpene alco-holsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this

20、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 years

21、 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 committe

22、e, 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 8022