1、Designation: D7125 11Standard Specification forCumene (Isopropylbenzene) Manufactured Via a ZeoliteProcess1This standard is issued under the fixed designation D7125; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 applies
3、 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-off
4、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 current OSHA Regulations and Suppliers Ma-terial Safety Data Sheets, and local regulations for all materialsused in this specification.2. Refere
5、nced Documents2.1 ASTM Standards:2D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D1492 Test Method for Bromine Index of Aromatic Hydro-carbons by Coulometric TitrationD2710 Test Method for Bromine Index of Petroleum Hy-drocarbons by Electrometric TitrationD3160 Test Method for P
6、henol Content of Cumene (Isopro-pylbenzene) or AMS (aMethylstyrene)D3437 Practice for Sampling and Handling Liquid CyclicProductsD3760 Test Method for Analysis of Isopropylbenzene(Cumene) by Gas ChromatographyD5386 Test Method for Color of Liquids Using TristimulusColorimetryD7057 Test Method for An
7、alysis of Isopropylbenzene(Cumene) by Gas Chromatography (External Standard)D7183 Test Method for Determination of Total Sulfur inAromatic Hydrocarbons and Related Chemicals by Ultra-violet FluorescenceD7359 Test Method for Total Fluorine, Chlorine and Sulfurin Aromatic Hydrocarbons and Their Mixtur
8、es by Oxida-tive Pyrohydrolytic Combustion followed by Ion Chroma-tography Detection (Combustion Ion Chromatography-CIC)E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE298 Test Methods for Assay of Organic PeroxidesE299 Test Method for Trace Amounts
9、 of Peroxides InOrganic Solvents2.2 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 %,
10、 min 99.93 D3760 or D7057Alpha-Methylstrene, mg/kg, max 50 D3760 or D7057Benzene, mg/kg, max 10 D3760 or D7057Cumene hydroperoxide, at loading, mg/kg,max100 E298 or E299Diisopropylbenzenes, Individual Isomer,mg/kg, max5 D3760 or D7057Diisopropylbenzenes, Total, mg/kg, max 10 D3760 or D7057Ethylbenze
11、ne, mg/kg, max 50 D3760 or D7057I-Butylbenzene, mg/kg, max 10 D3760 or D7057n-Butylbenzene, mg/kg, max 10 D3760 or D7057s-Butylbenzene, mg/kg, max 20 D3760 or D7057t-Butylbenzene, mg/kg, max 25 D3760 or D7057Phenols, mg/kg, max 5 D3760 or D7057n-Propylbenzene, mg/kg, max 300 D3760, D3160 orD7057Sulf
12、ur, mg/kg, max 0.1 D7183 or D7359Toluene, mg/kg, max 10 D3760 or D7057Total Butylbenzenes, mg/kg, max 65 D3760 or D70571This specification is under the jurisdiction of Committee D16 on AromaticHydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee D16.07 on Styrene, Ethy
13、lbenzene and C9 and C10 Aromatic Hydrocar-bons.Current edition approved June 1, 2011. Published June 1, 2011. Originallyapproved in 2007. Last previous edition approved in 2007 as D7125 - 07. DOI:10.1520/D7125-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cu
14、stomer 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, DC 20401, http:/www.
15、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.Total Cymenes, mg/kg, max 50 D3760 or D7057Total Non-Aromatics, mg/kg, max 150BD3760 or D7057Total GC Un
16、knowns, mg/kg, max 50CD3760 or D7057Bromine index, max 25 D1492 or D2710AppearanceDvisualColor, Pt/Co, max 10 D1209 or D5386AIf 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-
17、polar (HP-1 orequivalent) GC analysis (See Test Method D3760 or D7057) excluding Ethylben-zene. May include Xylenes.CExcluding CHP, Acetophenone, and 2-Phenyl-2-Propanol (Dimethylbenzylal-cohol or Dimethylphenylcarbinol).DClear liquid, free of sediment and haze when observed at 18.3 to 25.6C (65to 7
18、8F).4. Sampling4.1 Sampling the material in accordance with PracticeD3437.4.2 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-phe
19、nylpropaneSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue (D7125 07)that may impact the use of this standard. (Approved June 1, 2011.)(1) Section 1 1.3 added and former 1.3 renumbered as 1.4.(2) 2.1 Sulfur method D7359 added.(3) 3
20、.1 Sulfur method D7359 added, another synonym for2-Phenyl-2Propanol added to note C. Note D corrected tocurrent Editorial guideline verbiage.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this
21、 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 must be reviewed every five year
22、s 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. Your comments will receive careful consideration at a meeting of theresponsible technical committ
23、ee, 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 copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428
24、-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/).D7125 112
