1、Designation: D 6367 04Standard 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 in parentheses in
2、dicates 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 AMS (a-Methylstyrene).1.2 The following applies to all limits in this specification:for purposes of determining conformance with th
3、is 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 E 29.1.3 Consult current OSHA regulations, suppliers MaterialSafety Data
4、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 Method for Polymer Content of Styrene Mono-mer and a-MethylstyreneD 3160 Test Method for Phenol Conten
5、t of Cumene (Iso-propylbenzene) or AMS (a-Meththylstyrene)D 3437 Practice for Sampling and Handling Liquid CyclicProductsD 4590 Test Method for Colorimetric Determination ofp-tert-Butylcatechol in Styrene Monomer or AMS (a-Methylstyrene) by SpectrophotometryD 5386 Test Method for Color of Liquids Us
6、ing TristimulusColorimetryD 6144 Test Method for Analysis of AMS (a-Methylstyrene) by Capillary Gas ChromatographyE 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 Other Documents:OSHA Regulations, 29CFR, paragraphs 1910.1000 and1910.120033. Prope
7、rties3.1 AMS shall conform to the requirements shown in Table1.4. 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 Hydrocarbons an
8、d Related Chemicals and is the direct responsibility ofSubcommittee D16.07 on Styrene, Ethylbenzene, and C9and C10AromaticHydrocarbons.Current edition approved June 1, 2004. Published June 2004. Originallyapproved in 1999. Last previous edition approved in 1999 as D 6367 99.2For referenced ASTM stan
9、dards, 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 Documents,732 N. Cap
10、itol St., NW, Mail Stop: SDE, Washington, DC 20401.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 4590 or D 6144AppearanceBColor, max, Pt-Co
11、 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.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Inte
12、rnational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D 6367 99) that may impact the use of this standard.(1) Specification D 6367 was revise
13、d to current D16 EditorialStandards.(2) Section 3 Reference to TBC (para-tertiary-butylcatechol)as the inhibitor most commonly used was added to thespecification table as well as reference to Test Method D 6144.(3) Section 5 Additional keywords TBC; catechol; tertiary-butyl catechol were added.ASTM
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17、 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).D6367042
