ASTM D5471-2016 Standard Specification for O-Xylene 980《邻二甲苯980的标准规格》.pdf

1、Designation: D5471 10D5471 16Standard Specification forO-Xylene 9801This standard is issued under the fixed designation D5471; 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 parentheses indic

2、ates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers a grade of o-xylene identified as ortho-Xylene 980.1.2 The following applies to all specified limits in this specification: for purpose

3、s of determining conformance with thisspecification, an observed value or a calculated value shall be rounded off to the nearest unit in the last right-hand digit used inexpressing the specification limit, in accordance with the rounding-off method of Practice E29.1.3 The values stated in SI units a

4、re to be regarded as standard. No other units of measurement are included in this standard.1.4 Consult current OSHA regulations and suppliers Material suppliers Safety Data Sheets, and local regulations for allmaterials used in this specification.2. Referenced Documents2.1 ASTM Standards:2D850 Test

5、Method for Distillation of Industrial Aromatic Hydrocarbons and Related MaterialsD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D1492 Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric TitrationD3437 Practice for Sampling and Handling Liquid Cyclic ProductsD37

6、97 Test Method for Analysis of o-Xylene by Gas Chromatography (Withdrawn 2014)3D5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD5776 Test Method for Bromine Index of Aromatic Hydrocarbons by Electrometric TitrationD7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydr

7、ocarbons by Gas Chromatography and Effective CarbonNumberD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications2.2 Other Document:4OSHA Regulations, 29 CFR Paragraphs 1910.1000 and 1910.1

8、2003. Properties3.1 O-Xylene 980 shall conform to the following requirements:Property Specification ASTM TestMethodAPurity, min, wt % 98.0 D3797 or D7504Nonaromatic hydrocarbons, max, wt % 0.5 D3797 or D7504p-Xylene plus m-Xylene, max, wt % 1.3 D3797 or D7504C9 and heavier aromatics, max, wt % 0.8 D

9、3797 or D7504Cumene, wt %B 0.5 D3797 or D7504Bromine index, max mg/100 g 100 D1492 or D5776Appearance C .1 This specification is under the jurisdiction ofASTM Committee D16 on Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of SubcommitteeD16.01 on Benzene, Toluene, Xyle

10、nes, Cyclohexane and Their Derivatives.Current edition approved Feb. 15, 2010June 1, 2016. Published April 2010June 2016. Originally approved in 1993. Last previous edition approved in 20042010 asD5471 04D5471 10. 1. DOI: 10.1520/D5471-10.10.1520/D5471-16.2 For referencedASTM standards, visit theAST

11、M website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Availabl

12、e from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made t

13、o the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summ

14、ary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Property Specification ASTM TestMethodAColor, Pt-Co scale, max 10 D1209 or D5386Color, Pt-Co scale, max 10 D5386 or D8005Distill

15、ation range, including the tempera-ture, 144.4C at 101.3 kPA (760 mmHg) pressure, max, C2.0 D850A If more than one method is listed for a property the producer and user should agree on the referee method.B Cumene is a significant component in o-xylene as it may contribute to deflagrations in some pr

16、ocesses under certain conditions.C Clear liquid, free of sediment and haze when observed at 18.3 to 25.6C.4. Sampling4.1 The material shall be sampled in accordance with Practice D3437.5. Keywords5.1 o-XyleneSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this stan

17、dard since the last issue(D5471 04D5471 1)10) that may impact the use of this standard. (Approved February 15, 2010.)June 1, 2016.)(1) Added method for composition, Test Method Removed D1209 and added D8005 D7504in Table in Section 2.3.1.(2) Modified table in 3.1 to replace D1209 with D8005.ASTM Int

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