ASTM D2359-2007 Standard Specification for Refined Benzene-535《精致苯-535用标准规范》.pdf

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1、Designation: D 2359 07Standard Specification forRefined Benzene-5351This standard is issued under the fixed designation D 2359; 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 indi

2、cates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers a grade of benzene known asrefined benzene-535.1.2 The following applies to all specified limits in thisstandard: for purposes of det

3、ermining conformance with thisstandard, an observed value or a calculated value shall berounded off “to the nearest unit” in the last right-hand digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E29.1.3 The values stated in SI units are to be rega

4、rded as thestandard. The values given in parentheses are for informationonly.1.4 Consult current OSHA regulations, suppliers MaterialSafety Data Sheets, and local regulations for all materials usedin this specification.2. Referenced Documents2.1 ASTM Standards:2D 848 Test Method for Acid Wash Color

5、of IndustrialAromatic HydrocarbonsD 852 Test Method for Solidification Point of BenzeneD 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 1685 Test Method for Traces of Thiophene in Benzene bySpectrophotometryD 3437 Practice for Sampling and Handling Liquid CyclicProductsD 4492 T

6、est Method for Analysis of Benzene by GasChromatographyD 5386 Test Method for Color of Liquids Using TristimulusColorimetryD 6069 Test Method for Trace Nitrogen in Aromatic Hy-drocarbons by Oxidative Combustion and Reduced Pres-sure Chemiluminescence DetectionD 6304 Test Method for Determination of

7、Water in Petro-leum Products, Lubricating Oils, and Additives by Coulo-metric Karl Fischer TitrationD 6875 Test Method for Solidification Point of IndustrialOrganic Chemicals by ThermistorD 7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-viol

8、et FluorescenceD 7184 Test Method for Ultra Low Nitrogen in AromaticHydrocarbons by Oxidative Combustion and ReducedPressure Chemiluminescence DetectionE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 1064 Test Method for Water in Organic Liquids by

9、Coulometric Karl Fischer Titration2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120033. Properties3.1 Refined benzene-535 shall conform to the followingrequirements:Property SpecificationASTM TestMethodAPurity, min, weight % 99.80 D 4492Toluene, max, weight % 0.10 D 4492Su

10、lfur, max, mg/kg (if needed) D 7183Thiophene, max, mg/kg 1 D 1685Nonaromatic hydrocarbons, max,weight %0.15 D 4492Nitrogen, max, mg/kg (if needed) D 6069 or D 7184Water (if needed) D 6304 or E 1064Acid wash color, max pass with 1 D 848AppearanceB.Color, max, PtCo scale 20 D 1209 or D 53861,4 Dioxane

11、 (if needed) D 4492Solidification point, anhydrousbasis, min, C5.35 D 852 or D 6875_AIf more than one method is listed, the producer and user should agree on thereferee method.BClear liquid free of sediment and haze when observed at 18.3 to 25.6C (65to 78F).1This specification is under the jurisdict

12、ion of ASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and TheirDerivatives.Current edition approved June 1, 2007. Published July 2007. Originally approvedin 1966. Last previous edition

13、approved in 2006 as D 2359 06.2For 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. Government

14、 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 19428-2959, U

15、nited States.4. Sampling4.1 The material shall be sampled in accordance withPractice D 3437.5. Keywords5.1 benzene; benzene535SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D 2359 - 06) that may impact the use of this standard. (

16、Approved June 1, 2007.)(1) Changed method entry for nitrogen in 3.1.(2) Changed method entry for sulfur in 3.1.Committee D16 has identified the location of selected changes to this standard since the last issue(D 2359 02) that may impact the use of this standard. (Approved June 1, 2006.)(1) Changed

17、methods for sulfur and nitrogen in 3.1.(2) Changed the note on table in 3.1 “Test Method E 1064 isthe referee test method in case of dispute” to “If more than onemethod is listed, the producer and user should agree on thereferee method.”ASTM International takes no position respecting the validity of

18、 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 standard is subject to

19、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 Headquarters. Y

20、our 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 standard is co

21、pyrighted 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).D2359072