ASTM D841-2017 Standard Specification for Nitration Grade Toluene《硝化级甲苯的标准规格》.pdf

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1、Designation: D841 13D841 17Standard Specification forNitration Grade Toluene1This standard is issued under the fixed designation D841; 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 parenthes

2、es 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 toluene.1.2 The following applies to all specified limits in this standard: for purposes of determining co

3、nformance with this standard,an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit used in expressingthe specification limit, in accordance with the rounding-off method of Practice E29.1.3 Consult OSHA regulations, suppliers Material supplier

4、s Safety Data Sheets, and local regulations for all materials usedin this specification.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, G

5、uides 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 Aromatic HydrocarbonsD849 Test Method for Copper Strip Corrosion by Industrial Aromatic Hydrocarbo

6、nsD2360 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography (Withdrawn 2016)3D3437 Practice for Sampling and Handling Liquid Cyclic ProductsD5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD7504 Test Method for Trace Impurities in Monocyclic

7、Aromatic Hydrocarbons by Gas Chromatography and Effective CarbonNumberE29 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 Federal Specification:4PPP-C-2020 P

8、ackaging of Chemicals, Liquid, Dry, and Paste2.3 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 51 This specification is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and is the directresponsibi

9、lity of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved Feb. 1, 2013June 1, 2017. Published February 2013June 1, 2017. Originally approved in 1945. Last previous edition approved in 20122013 asD841 12.D841 13. DOI: 10.1520/D0841-13.10.1520

10、/D0841-17.2 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 The last approved version of this histor

11、ical standard is referenced on www.astm.org.4 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA19111-5098, http:/www.dodssp.daps.mil.19111-5094, http:/quicksearch.dla.mil.5 Available from U.S. Gove

12、rnment 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 to the previous v

13、ersion. 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 Summary of Changes s

14、ection 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 Toluene shall conform to the following requirements:Property Specification ASTM TestMethodANonaromatic hydrocar

15、bons, max, volume %(wt %)1.5 (1.2) D2360,D7504Purity, min. wt% 98.8 D2360 orD7504Acid wash color, max pass with 2 D848Copper corrosion pass (1A or 1B) D849Appearance B .Appearance, free of haze, particulatesor suspended matter particlespass E2680Color, Pt/Co scale, max 20 D5386A If more than one met

16、hod is listed for a property the producer and user should agree on the reference method.B Clear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to 78F).3.2 See Section 6 for non-mandatory supplementary requirements.4. Sampling4.1 The material shall be sampled in accordance with P

17、ractice D3437.5. Packaging and Labeling for U.S. Government Procurements5.1 United States Government procurements shall be packaged and labeled in accordance with the applicable paragraphs of Fed.Spec. PPP-C-2020.6. Supplementary Requirements (Non-mandatory)6.1 The following supplementary requiremen

18、ts shall apply only when specified by the purchaser in the purchase order orcontract:Property ASTM Test Method1,4-dioxane, max, mg/kg D75047. Keywords7.1 tolueneSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue (D841 12)that may imp

19、act the use of this standard. (Approved February 1, 2013.)(1) Added Test Method D7504 to table in 3.1.(2) Moved 1,4 dioxane to non-mandatory section.(3) Deleted reference to Test Method D1209.(4) Removed Test Method D850 Distillation requirement.Committee D16 has identified the location of selected

20、changes to this standard since the last issue (D841 11)that may impact the use of this standard. (Approved November 1, 2012.)(1) Modified Table 3.1 to eliminate non-mandatory requirements. Added 3.2 and Section 6 to indicate non-mandatory items.D841 172ASTM International takes no position respecting

21、 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 of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standar

22、d 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 either for revision of this standard or for additional standardsand should be addressed to ASTM International

23、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 received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This

24、 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). 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:/ 173