1、Designation: D 6367 04 (Reapproved 2008)Standard Specification forAMS (a-Methylstyrene)1This standard is issued under the fixed designation D 6367; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、 in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers AMS (a-Methylstyrene).1.2 The following applies to all limits in this specification:for purposes of determining con
3、formance with this specifica-tion, an observed value or a calculated value shall be roundedoff “to the nearest unit” in the last right-hand digit used inexpressing the specification limit, in accordance with therounding-off method of Practice E29.1.3 Consult current OSHA regulations, suppliers Mater
4、ialSafety Data Sheets, and local regulations for all materials usedin this specification.2. Referenced Documents2.1 ASTM Standards:2D 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 2121 Test Methods for Polymer Content of StyreneMonomer and AMS (aMethylstyrene)D 3160 Test Metho
5、d for Phenol Content of Cumene (Iso-propylbenzene) or AMS (aMethylstyrene)D 3437 Practice for Sampling and Handling Liquid CyclicProductsD 4590 Test Method for Colorimetric Determination ofp-tert-Butylcatechol In Styrene Monomer orAMS (aMe-thylstyrene) by SpectrophotometryD 5386 Test Method for Colo
6、r of Liquids Using TristimulusColorimetryD 6144 Test Method for Analysis of AMS (a-Methylstyrene) by Capillary Gas ChromatographyE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 Other Documents:OSHA Regulations 29CFR paragraphs 1910.1000 and1910.1
7、20033. Properties3.1 AMS shall conform to the requirements shown inTable 1.4. Sampling4.1 Sample the material in accordance with PracticeD 3437.5. Keywords5.1 a-Methylstyrene; AMS; catechol; TBC; tertiary-butylcatechol1This specification is under the jurisdiction of ASTM Committee D16 onAromatic Hyd
8、rocarbons and Related Chemicals and is the direct responsibility ofSubcommittee D16.07 on Styrene, Ethylbenzene and C9 and C10 AtomaticHydrocarbons.Current edition approved July 1, 2008. Published July 2008. Originally approvedin 1999. Last previous edition approved in 2004 as D 6367 04.2For referen
9、ced 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 Documen
10、ts,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.TABLE 1 RequirementsProperty Specification ASTM Test MethodAMS, min, weight % 99.00 D 6144Phenols, max, mg/kg 20 D 3160Polymer, max, mg/kg 10 D 2121, Test Method AInhibitor, mg/kg 10-20 (or as required)A,BD 459
11、0 or D 6144AppearanceBColor, max, Pt-Co 20CD 1209 or D 5386ATypically TBC (para-tertiary-butyl catechol).BClear liquid free of sediment and haze when observed at 18.3 to 25.6C (65 to78F).CTest Method D 5386 is the referee test method in case of dispute.1Copyright ASTM International, 100 Barr Harbor
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15、d 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).D 6367 04 (2008)2
