1、Designation: D 2359 09Standard 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 () 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 dete
3、rmining 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 regar
4、ded asstandard. No other units of measurement are included in thisstandard.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 of
5、 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 Tes
6、t Method for Analysis of Benzene by GasChromatographyD 4735 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas ChromatographyD 5386 Test Method for Color of Liquids Using TristimulusColorimetryD 6069 Test Method for Trace Nitrogen in Aromatic Hy-drocarbons by Oxidative Combust
7、ion and Reduced Pres-sure Chemiluminescence DetectionD 6304 Test Method for Determination of 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 7011 Test Method
8、for Determination of Trace Thiophenein Refined Benzene by Gas Chromatography and SulfurSelective DetectionD 7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD 7184 Test Method for Ultra Low Nitrogen in AromaticHydrocarbons b
9、y Oxidative Combustion and ReducedPressure Chemiluminescence DetectionD 7375 Test Method for Trace Quantities of Water inAromatic Hydrocarbons and Their Mixtures by Coulom-etric Karl Fischer TitrationE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE
10、1064 Test Method for Water in Organic Liquids byCoulometric Karl Fischer Titration2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120031This specification is under the jurisdiction of ASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsi
11、bility ofSubcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and TheirDerivatives.Current edition approved June 1, 2009. Published July 2009. Originally approvedin 1966. Last previous edition approved in 2008 as D 2359 08.2For referenced ASTM standards, visit the ASTM website, www.astm.org
12、, 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 Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, D
13、C 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, United States.3. Properties3.1 Refined benzene-535 shall conform to the followingrequirements:Prope
14、rty Specification ASTM Test MethodAPurity, min, weight % 99.80 D 4492Toluene, max, weight % 0.10 D 4492Sulfur, max, mg/kg (if needed) D 7183Thiophene, max, mg/kg 1 D 1685 orD 4735 orD 7011Nonaromatic hydrocarbons, max,weight %0.15 D 4492Nitrogen, max, mg/kg (if needed) D 6069 orD 7184Water (if neede
15、d) D 6304 orE 1064 orD 7375Acid wash color, max pass with 1 D 848AppearanceB.Color, max, PtCo scale 20 D 1209 orD 53861,4 Dioxane (if needed) D 4492Solidification point, anhydrousbasis, min, C5.35 D 852 orD 6875AIf more than one method is listed, the producer and user should agree on thereferee meth
16、od.BClear liquid free of sediment and haze when observed at 18.3 to 25.6C.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 i
17、ssue(D 2359 - 08) that may impact the use of this standard. (Approved June 1, 2009.)(1) Added alternate methods for thiophene.Committee D16 has identified the location of selected changes to this standard since the last issue(D 2359 - 07) that may impact the use of this standard. (Approved December
18、1, 2008.)(1) Added Test Method D 7375 as an alternate method forwater.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 of a
19、ny 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 are
20、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 recei
21、ved 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) 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).D2359092
