1、Designation:D 2323 93(Reapproved l997)e1Standard Specification forRefined Pyridine(1 Degree)1This standard is issued under the fixed designation D 2323;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A numbe
2、r in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.e1NOTEEditoral changes were made in the Scope Section in December l997.1.Scope1.1 This specification covers refined pyridine.1.2 The following applies to
3、all specified limits in thisstandard:for purposes of determining conformance with thisstandard,an observed 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
4、E 29.1.3 Consult current OSHA regulations,suppliers MaterialSafety Data Sheets,and local regulations for all materials usedin this specification.2.Referenced Documents2.1 ASTM Standards:D 1078 Test Method for Distillation Range of VolatileOrganic Liquids2D 1209 Test Method for Color of Clear Liquids
5、(Platinum-Cobalt Scale)2D 1631 Test Method for Water in Phenol and RelatedMaterials by the Iodine Reagent Method2D 2030 Test Method for Water Solubility of Refined Pyri-dine2D 2031 Test Method for Reducing Substances in RefinedPyridine2D 3437 Practice for Sampling and Handling Liquid CyclicProducts2
6、D 3505 Test Method for Density or Relative Density ofPure Liquid Chemicals2E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance With Specifications32.2Other Document:OSHA Regulations,29 CFR,paragraphs 1910.1000 and1910.120043.Properties3.1 Refined pyridine shall conform to
7、 the following require-ments:PropertySpecificationASTM Test MethodWater,max,weight%0.10D 1631Reducing substancesPasses at 30 minD 2031Water solubilityPasses,clear solution,noturbidity or oil filmD 2030AppearanceAColor,max,platinum/cobalt scale20D 1209Relative density,15.56/15.56C0.985 to 0.990D 3505
8、Distillation range,including the tempera-ture 115.3 6 0.1C,at101.3 kPa(760 mm Hg)pressure,max,C1.0D 1078 using ASTMSolvents DistillationThermometer 41C_AClear liquid free of sediment and haze when observed at 18.3 to 25.6C(65 to78F).4.Sampling4.1 Sample the material in accordance with PracticeD 3437
9、.5.Keywords5.1 pyridine;refined pyridineThe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this standard.Users of this standard are expressly advised that determination of the validity of any
10、suchpatent rights,and the risk of 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
11、 either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee,which you may attend.If you feel that your comments have not received a fair hearing you s
12、hould make yourviews known to the ASTM Committee on Standards,100 Barr Harbor Drive,West Conshohocken,PA 19428.1This specification is under the jurisdiction of ASTM Committee D-16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.0D on Organic Nitrogen
13、 Compounds.Current edition approved Sept.15,1993.Published November 1993.Originallypublished as D 2323 64 T.Last previous edition D 2323 84(1989)e1.2Annual Book of ASTM Standards,Vol 06.04.3Annual Book of ASTM Standards,Vol 14.02.4Available from Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20402.1AMERICAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr.,West Conshohocken,PA 19428Reprinted from the Annual Book of ASTM Standards.Copyright ASTM