1、Designation: D7125 16Standard 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. No other units of measurement are included in thisstandard.1.4 Consult current OSHA Regulations and SuppliersSafety Data Sheets, and local regulations for all materials usedin this specification.2. Referenced Doc
5、uments2.1 ASTM Standards:2D1492 Test Method for Bromine Index of Aromatic Hydro-carbons by Coulometric TitrationD2710 Test Method for Bromine Index of Petroleum Hydro-carbons by Electrometric TitrationD3160 Test Method for Phenol Content of Cumene (Isopro-pylbenzene) or AMS (Methylstyrene)D3437 Prac
6、tice 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 Analysis of Isopropylbenzene(Cumene) by Gas Chromatography (External Standard)D
7、7183 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 Mixtures by Oxida-tive Pyrohydrolytic Combustion followed by Ion Chroma-tography De
8、tection (Combustion Ion Chromatography-CIC)D8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)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 of Perox
9、ides 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 %, min 99.9
10、3 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 D7057Ethylbenzene, mg/kg
11、, 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 D70571This specification is under the jurisdiction of Committee D16 on AromaticHydrocarbons and Related Ch
12、emicals and is the direct responsibility of Subcommittee D16.07 on Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocar-bons.Current edition approved June 1, 2016. Published August 2016. Originallyapproved in 2007. Last previous edition approved in 2011 as D7125 11. DOI:10.1520/D7125-16.2For refer
13、enced 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 Printing Office Superintendent of Docum
14、ents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Phenols, mg/kg, max 5 D3160,
15、D3760 orD7057n-Propylbenzene, mg/kg, max 300 D3760 orD7057Sulfur, mg/kg, max 0.1 D7183 or D7359Toluene, mg/kg, max 10 D3760 or D7057Total Butylbenzenes, mg/kg, max 65 D3760 or D7057Total Cymenes, mg/kg, max 50 D3760 or D7057Total Non-Aromatics, mg/kg, max 150BD3760 or D7057Total GC Unknowns, mg/kg,
16、max 50CD3760 or D7057Bromine index, max 25 D1492 or D2710AppearanceDvisualColor, Pt/Co, max 10 D5386 or D8005AIf more than one method is listed for a property, the producer and the user shouldagree on the referee test method.BAll components eluting between toluene and cumene in a non-polar (HP-1 ore
17、quivalent) GC analysis (See Test Method D3760 or D7057) excluding Ethylben-zene. May include Xylenes.CExcluding CHP, Acetophenone, and 2-Phenyl-2-Propanol (Dimethylbenzylalco-hol or Dimethylphenylcarbinol).DClear liquid, free of sediment and haze when observed at 18.3 to 25.6C.4. Sampling4.1 Samplin
18、g 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-phenylpropaneSUMMARY OF CHANG
19、ESCommittee D16 has identified the location of selected changes to this standard since the last issue (D712511)that may impact the use of this standard. (Approved June 1, 2016.)(1) Section 1minor editorial changes.(2) 2.1D1209 deleted and D8005 added.(3) 3.1as above, also fixed error with inclusion
20、of D3160 forn-propylbenzene determination. Removed non-SI units.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 suc
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