1、Designation: D843 06 (Reapproved 2011)1Standard 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 i
2、n parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEThis standard was brought up to date with the editorial guidelines in February 2011.1. Scope*1.1 This specification covers nitration grade xylene.1.2
3、The following applies to all specified limits in thisstandard: for purposes of determining conformance with thisstandard, an observed value or a calculated value shall beround off “to the nearest unit” in the last right-hand digit usedin expressing the specification limit, in accordance with theroun
4、d-off method of Practice E29.1.3 The values stated in SI units are to be regarded asstandard. The values given in parentheses are for informationonly.1.4 Consult OSHA regulations, suppliers Material SafetyData Sheets, and local regulations for all materials used in thisspecification.2. Referenced Do
5、cuments2.1 ASTM Standards:2D848 Test Method for Acid Wash Color of IndustrialAromatic HydrocarbonsD849 Test Method for Copper Strip Corrosion by IndustrialAromatic HydrocarbonsD850 Test Method for Distillation of Industrial AromaticHydrocarbons and Related MaterialsD1209 Test Method for Color of Cle
6、ar Liquids (Platinum-Cobalt Scale)D3437 Practice for Sampling and Handling Liquid CyclicProductsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD6563 Test Method for Benzene, Toluene, Xylene (BTX)Concentrates Analysis by Gas ChromatographyE29 Practice for Using Significant Digits
7、in Test Data toDetermine Conformance with Specifications2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120033. Properties3.1 Nitration grade xylene shall conform to the followingrequirements:ASTM TestProperty Specification MethodANonaromatic hydrocarbons, max, volume % 4.0
8、D6563Acid wash color, max pass with 6 D848Copper corrosion pass (1A or 1B) D849AppearanceB.Color, Pt/Co scale, max 20 D1209 orD5386Distillation range at 101.3 kPa (760 mm Hgpressure), max,C5 D850Initial distillation temperature, min,C 137 D850Dry point, max,C 143 D850AIf more than one method is list
9、ed, the producer and user should agree on thereferee method.BClear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to78F).4. Sampling4.1 The material shall be sampled in accordance withPractice D3437.5. Keywords5.1 xylene1This specification is under the jurisdiction of ASTM Commi
10、ttee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and TheirDerivatives.Current edition approved Feb. 1, 2011. Published November 2011. Originallyapproved in 1945. Last previous edition approved in 2
11、006 as D843 06 DOI:10.1520/D0843-06R11E1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from U.S.
12、 Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19
13、428-2959, United States.SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D843 97 (2006) that may impact the use of this standard. (Approved June 1, 2006.)(1) Changed methods for nonaromatic hydrocarbons in 3.1.ASTM International ta
14、kes 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 of any such patent rights, and the riskof infringement of such rights, are entirely their own r
15、esponsibility.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 either for revision of this standard or for additional standardsand should be addre
16、ssed 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 received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at t
17、he 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) 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 ASTM website (www.astm.org/COPYRIGHT/).D843 06 (2011)12
