1、Designation: D843 16D843 17Standard 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. Scope*Scope1.1 This specification covers nitration grade xylene.1.2 The following applies to all specified limits in this standard: for purposes of determining conf
3、ormance 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
4、. The 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 standard
5、izationestablished 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
6、Aromatic 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 T
7、ristimulus ColorimetryD6563 Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas ChromatographyD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE2680 Test Meth
8、od for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 31 This specification is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemi
9、cals and is the directresponsibility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved June 1, 2016June 1, 2017. Published June 2016June 2017. Originally approved in 1945. Last previous edition approved in 20112016 as D843 06(2011)D843 16
10、.1. DOI: 10.1520/D0843-16.10.1520/D0843-17.2 For referencedASTM standards, visit theASTM 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 Availab
11、le 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
12、to 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 Sum
13、mary 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 States13. Properties3.1 Nitration grade xylene shall conform to the following requirements:ASTM TestProperty Specification ASTM TestMe
14、thodANonaromatic hydrocarbons, max, volume % 4.0 D6563Acid wash color, max pass with 6 D848Copper corrosion pass (1A or 1B) D849Appearance B .Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, Pt/Co scale, max 20 D5386 orD8005Distillation range at 101.3 kPa (760 mm H
15、gpressure), 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.B Clear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to 78F).4. Sampling4.1 The materia
16、l shall be sampled in accordance with Practice D3437.5. Keywords5.1 xyleneSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D84303 (2011)1) that may impact the use of this standard. (Approved June 1, 2016.)(1) Removed D1209 and adde
17、d D8005 in Section 2.(2) Modified table in 3.1 to replace D1209 with D8005.ASTM 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 determination of the validity
18、 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 withdrawn.Your comments
19、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 comments have not r
20、eceived 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
21、) 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:/ 172
