1、Designation: D2359 18aStandard Specification forRefined Benzene-5351This standard is issued under the fixed designation D2359; 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 indic
2、ates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 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 determ
3、ining 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 regarde
4、d asstandard. No other units of measurement are included in thisstandard.1.4 Consult current OSHA regulations, suppliers SafetyData Sheets, and local regulations for all materials used in thisspecification.1.5 This international standard was developed in accor-dance with internationally recognized p
5、rinciples on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D848 Test Method for Acid Wa
6、sh Color of Industrial Aro-matic HydrocarbonsD852 Test Method for Solidification Point of BenzeneD3437 Practice for Sampling and Handling Liquid CyclicProductsD4492 Test Method for Analysis of Benzene by Gas Chro-matography (Withdrawn 2018)3D4735 Test Method for Determination of Trace Thiophenein Re
7、fined Benzene by Gas ChromatographyD5194 Test Method for Trace Chloride in Liquid AromaticHydrocarbonsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD5808 Test Method for Determining Chloride in AromaticHydrocarbons and Related Chemicals by Microcoulom-etryD6875 Test Method for S
8、olidification Point of IndustrialOrganic Chemicals by ThermistorD7011 Test Method for Determination of Trace Thiophenein Refined Benzene by Gas Chromatography and SulfurSelective DetectionD7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-viole
9、t FluorescenceD7184 Test Method for Ultra Low Nitrogen in AromaticHydrocarbons by Oxidative Combustion and ReducedPressure Chemiluminescence DetectionD7359 Test Method for Total Fluorine, Chlorine and Sulfurin Aromatic Hydrocarbons and Their Mixtures by Oxida-tive Pyrohydrolytic Combustion followed
10、by Ion Chroma-tography Detection (Combustion Ion Chromatography-CIC)D7360 Test Method for Analysis of Benzene by Gas Chro-matography with External CalibrationD7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons by Gas Chromatography andEffective Carbon NumberD7536 Test Method fo
11、r Chlorine in Aromatics by Mono-chromatic Wavelength Dispersive X-ray FluorescenceSpectrometryD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE1064 Test Method for Water in Organic L
12、iquids by Coulo-metric Karl Fischer TitrationE2680 Test Method for Appearance of Clear, Transparent1This specification is under the jurisdiction of ASTM Committee D16 onAromatic, Industrial, Specialty and Related Chemicals and is the direct responsi-bility of Subcommittee D16.01 on Benzene, Toluene,
13、 Xylenes, Cyclohexane andTheir Derivatives.Current edition approved Nov. 1, 2018. Published December 2018. Originallyapproved in 1966. Last previous edition approved in 2018 as D2359 18. DOI:10.1520/D2359-18a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Custom
14、er Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, We
15、st Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World T
16、rade Organization Technical Barriers to Trade (TBT) Committee.1Liquids (Visual Inspection Procedure)2.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120043. Properties3.1 Refined benzene-535 shall conform to the followingrequirements:Property Specification ASTM Test MethodAPu
17、rity, min, weight % 99.80 D4492 or D7360Toluene, max, weight % 0.10 D4492 or D7360Thiophene, max, mg/kg 1 D4735 or D7011Nonaromatic hydrocarbons, max,weight %0.15 D4492 or D7360Acid wash color, max pass with 1 D848Appearance, free of haze,particulates or suspendedmatter particlespass E2680Color, max
18、, PtCo scale 20 D5386 or D8005Solidification point, anhydrousbasis, min, C5.35D852 orD6875AIf more than one method is listed, the producer and user should agree on thereferee method.3.2 See Section 5 for non-mandatory supplementary re-quirements.4. Sampling4.1 The material shall be sampled in accord
19、ance withPractice D3437.5. Supplementary Requirements (Non-mandatory)5.1 The following supplementary requirements shall applywhen agreed upon by the supplier and purchaser:Property ASTM Test MethodASulfur, max, mg/kg D7183Nitrogen, max, mg/kg D7184Water E10641,4 Dioxane D4492 or D7360 or D7504Chlori
20、de, max, mg/kg D5194 or D5808 or D7359 or D7536AIf more than one method is listed, the producer and user should agree on thereferee method.6. Keywords6.1 benzene; benzene535ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentione
21、din 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 revision at any time by the responsible technical committee and
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24、700, 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). Permiss
25、ion rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 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.D2359 18a2
