1、Designation: D 7125 07Standard Specification forCumene (Isopropylbenzene) Manufactured Via a ZeoliteProcess1This standard is issued under the fixed designation D 7125; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates 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 cumene (isopropylbenzene)manufactured using a zeolite catalyst process.1.2 The following appl
3、ies to all specified limits in thisspecification: for purposes of determining conformance withthis specification, an observed value or a calculated value shallbe rounded off “to the nearest unit” in the last right-hand digitused in expressing the specification limit, in accordance withthe rounding-o
4、ff method of Practice E29.1.3 Consult current OSHA Regulations and Suppliers Ma-terial Safety Data Sheets, and local regulations for all materialsused in this specification.2. Referenced Documents2.1 ASTM Standards:2D 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 1492 Test Met
5、hod for Bromine Index of Aromatic Hy-drocarbons by Coulometric TitrationD 2710 Test Method for Bromine Index of Petroleum Hy-drocarbons by Electrometric TitrationD 3160 Test Method for Phenol Content of Cumene (Iso-propylbenzene) or AMS (aMethylstyrene)D 3437 Practice for Sampling and Handling Liqui
6、d CyclicProductsD 3760 Test Method for Analysis of Isopropylbenzene(Cumene) by Gas ChromatographyD 5386 Test Method for Color of Liquids Using TristimulusColorimetryD 7057 Test Method for Analysis of Isopropylbenzene(Cumene) by Gas Chromatography (External Standard)D 7183 Test Method for Determinati
7、on of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 298 Test Methods for Assay of Organic PeroxidesE 299 Test Method for Trace Amounts of Peroxides InOrganic S
8、olvents2.2 Other Documents:OSHA Regulations, 29 CFR paragraphs 1910.1000 and1910.120033. Properties3.1 Cumene (isopropylbenzene) manufactured via a cata-lytic zeolite process shall conform to the following require-ments:PropertySpecificationsASTM TestMethodAPurity, weight %, min 99.93 D 3760 or D 70
9、57Alpha-Methylstrene, mg/kg, max 50 D 3760 or D 7057Benzene, mg/kg, max 10 D 3760 or D 7057Cumene hydroperoxide, at loading, mg/kg,max100 E 298 or E 299Diisopropylbenzenes, Individual Isomer,mg/kg, max5 D 3760 or D 7057Diisopropylbenzenes, Total, mg/kg, max 10 D 3760 or D 7057Ethylbenzene, mg/kg, ma
10、x 50 D 3760 or D 7057i-Butylbenzene, mg/kg, max 10 D 3760 or D 7057n-Butylbenzene, mg/kg, max 10 D 3760 or D 7057s-Butylbenzene, mg/kg, max 20 D 3760 or D 7057t-Butylbenzene, mg/kg, max 25 D 3760 or D 7057Phenols, mg/kg, max 5 D 3760 or D 7057n-Propylbenzene, mg/kg, max 300 D 3760, D 3160 orD 7057Su
11、lfur, mg/kg, max 0.1 D 7183Toluene, mg/kg, max 10 D 3760 or D 7057Total Butylbenzenes, mg/kg, max 65 D 3760 or D 7057Total Cymenes, mg/kg, max 50 D 3760 or D 7057Total Non-Aromatics, mg/kg, max 150BD 3760 or D 7057Total GC Unknowns, mg/kg, max 50CD 3760 or D 7057Bromine index, max 25 D 1492 or D 271
12、0AppearanceDvisualColor, Pt/Co, max 10 D 1209 or D 5386AIf more than one method is listed for a property, the producer and the usershould agree on the referee test method.BAll components eluting between toluene and cumene in a non-polar (HP-1 orequivalent) GC analysis (See Test Method D 3760 or D 70
13、57) excluding Ethylben-zene. May include Xylenes.1This specification is under the jurisdiction of Committee D16 on AromaticHydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee D16.07 on Styrene, Ethylbenzene and C9 and C10 Atomatic Hydrocar-bons.Current edition approve
14、d June 1, 2007. Published June 2007. Originallyapproved in 2004. Last previous edition approved in 2004 as D 7125 - 04.2For 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
15、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, DC 20401, http:/www.access.gpo.gov.1*A Summary of Changes section appears at the end of this standard.Copyright AS
16、TM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.CExcluding CHP, Acetophenone, and 2-Phenyl-2-Propanol (Dimethylbenzylal-cohol).DClear liquid, free of sediment and haze from 18.3 to 25.6C (65 to 78F).4. Sampling4.1 Sampling the material in accorda
17、nce with PracticeD 3437.4.2 If cumene has been exposed to air, cumene hydroper-oxide may be in the sample. Suitable precautions should beexercised for handling cumene that may contain cumenehydroperoxide.5. Keywords5.1 cumene; isopropylbenzene; 2-phenylpropaneSUMMARY OF CHANGESCommittee D16 has iden
18、tified the location of selected changes to this standard since the last issue(D 7125 - 04) that may impact the use of this standard. (Approved June 1, 2007.)(1) 2.1 Sulfur methods D 3961 and D 4045 removed andTest Method D 7183 added.(2) 3.1 Sulfur methods D 3961 and D 4045 were removedfrom Table an
19、d Test Method D 7183 added.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 any such patent rights, and the riskof infri
20、ngement 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 invited either for revision of this standar
21、d 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 received a fair hearing you shouldmake your view
22、s 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).D7125072
