1、Designation: D843 17D843 18Standard Specification forNitration Grade Xylene1This standard is issued under the fixed designation D843; 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 parenthese
2、s indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers nitration grade xylene.1.2 The following applies to all specified limits in this standard: for purposes of determining conformanc
3、e with this standard,an observed value or a calculated value shall be round off “to the nearest unit” in the last right-hand digit used in expressing thespecification limit, in accordance with the round-off method of Practice E29.1.3 The values stated in SI units are to be regarded as standard. The
4、values given in parentheses are for information only.1.4 Consult OSHA regulations, suppliers Safety Data Sheets, and local regulations for all materials used in this specification.1.5 This international standard was developed in accordance with internationally recognized principles on standardizatio
5、nestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D848 Test Method for Acid Wash Color of Industrial Aromat
6、ic HydrocarbonsD849 Test Method for Copper Strip Corrosion by Industrial Aromatic HydrocarbonsD850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related MaterialsD3437 Practice for Sampling and Handling Liquid Cyclic ProductsD5386 Test Method for Color of Liquids Using Tristim
7、ulus ColorimetryD6563 Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography (Withdrawn 2018)3D7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective CarbonNumberD8005 Test Method for Color of Clear Liquids (P
8、latinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE2680 Test Method for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 41 This s
9、pecification is under the jurisdiction of ASTM Committee D16 on Aromatic, Industrial, Specialty and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved June 1, 2017Jan. 1, 2018. Published Ju
10、ne 2017January 2018. Originally approved in 1945. Last previous edition approved in 20162017 asD843 16.D843 17. DOI: 10.1520/D0843-17.10.1520/D0843-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Stan
11、dardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washin
12、gton, 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 to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, AST
13、M 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Prop
14、erties3.1 Nitration grade xylene shall conform to the following requirements:Property Specification ASTM TestMethodANonaromatic hydrocarbons, max, volume % 4.0 D6563 orD7504Acid wash color, max pass with 6 D848Copper corrosion pass (1A or 1B) D849Appearance, free of haze, particulatesor suspended ma
15、tter particlespass E2680Color, Pt/Co scale, max 20 D5386 orD8005Distillation range at 101.3 kPa (760 mm Hgpressure), max,C5 D850Initial distillation temperature, min,C 137 D850Dry point, max,C 143 D850A If more than one method is listed, the producer and user should agree on the referee method.4. Sa
16、mpling4.1 The material shall be sampled in accordance with Practice D3437.5. Keywords5.1 xyleneASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determina
17、tion 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 andif not revised, either reapproved or with
18、drawn.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 committee, which you may attend. If you feel that your
19、 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 (singl
20、e 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:/ 182
