1、Designation: D7124 16D7124 17Standard Specification forBenzene for Use with Zeolite Based Catalysts1This standard is issued under the fixed designation D7124; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*Scope1.1 This specification covers benzene for use with zeolite based catalysts.1.2 The following applies to all specified limits in
3、this specification: for purposes of determining conformance with thisspecification, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand digit usedin expressing the specification limit, in accordance with the rounding-off method of Practice E29.1.
4、3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.4 Consult current OSHA regulations, suppliers Safety Data Sheets, and local regulations for all materials used in thisspecification.1.5 This international standard was devel
5、oped in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documen
6、ts2.1 ASTM Standards:2D848 Test Method for Acid Wash Color of Industrial Aromatic HydrocarbonsD1492 Test Method for Bromine Index of Aromatic Hydrocarbons by Coulometric TitrationD1685 Test Method for Traces of Thiophene in Benzene by Spectrophotometry (Withdrawn 2009)3D3437 Practice for Sampling an
7、d Handling Liquid Cyclic ProductsD4492 Test Method for Analysis of Benzene by Gas ChromatographyD4735 Test Method for Determination of Trace Thiophene in Refined Benzene by Gas ChromatographyD5386 Test Method for Color of Liquids Using Tristimulus ColorimetryD5776 Test Method for Bromine Index of Ar
8、omatic Hydrocarbons by Electrometric TitrationD6304 Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric KarlFischer TitrationD7011 Test Method for Determination of Trace Thiophene in Refined Benzene by Gas Chromatography and Sulfur SelectiveDe
9、tectionD7183 Test Method for Determination of Total Sulfur in Aromatic Hydrocarbons and Related Chemicals by UltravioletFluorescenceD7184 Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced PressureChemiluminescence DetectionD7359 Test Method for Total Flu
10、orine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their Mixtures by OxidativePyrohydrolytic Combustion followed by Ion Chromatography Detection (Combustion Ion Chromatography-CIC)D7360 Test Method for Analysis of Benzene by Gas Chromatography with External CalibrationD7375 Test Method for Trac
11、e Quantities of Water in Aromatic Hydrocarbons and Their Mixtures by Coulometric Karl FischerTitration (Withdrawn 2017)3D7457 Test Method for Determining Chloride in Aromatic Hydrocarbons and Related Chemicals by Microcoulometry1 This specification is under the jurisdiction of ASTM Committee D16 on
12、Aromatic Hydrocarbons Aromatic, Industrial, Specialty and Related Chemicals and is the directresponsibility of Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives.Current edition approved June 1, 2016June 1, 2017. Published July 2016June 2017. Originally approved in 2
13、005. Last previous edition approved in 20122016 asD7124 12.D7124 16. DOI: 10.1520/D7124-16.10.1520/D7124-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the stand
14、ards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version
15、. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section
16、 appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D7504 Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective CarbonNumberD7536 Test Method for Chlor
17、ine in Aromatics by Monochromatic Wavelength Dispersive X-ray Fluorescence SpectrometryD8005 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE1064 Test Method for Water in Organic Liquids
18、 by Coulometric Karl Fischer TitrationE2680 Test Method for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)D7124 1722.2 Other Document:OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200 43. Properties3.1 Benzene for use with zeolite based catalysts shall conform to th
19、e following requirements:Property Specification ASTM TestMethodABenzene, min, weight % 99.8 D4492 or D7360or D7504Sulfur, max, mg/kg 1.0 D7183Thiophene, max, mg/kg 0.6 D1685 or D4735 orD7011Toluene, max, weight % 0.05 D4492 or D7360 orD7504Nonaromatic hydrocarbons, max,weight %0.15 D4492 or D7360 or
20、D7504Nitrogen, max, mg/kg 0.5 D7184Chlorides, max, mg/kg 1 D7359 or D7457 orD7536Appearance B .Appearance, free of haze,particulates or suspendedmatterparticlespass E2680Color, max, PtCo scale 15 D5386 or D8005A If more than one method is listed for a property the producer and user should agree on t
21、he referee method.B Clear liquid free of sediment and haze at 18.3 to 25.6C (65 to 78F).3.2 See Section 5.1 for non-mandatory supplementary requirements.4. Sampling4.1 The material shall be sampled in accordance with Practice D3437.5. Supplementary Requirements (Non-mandatory)5.1 The following suppl
22、ementary requirements shall apply when agreed upon by the supplier and purchaser.Property ASTM Test MethodA1,4 Dioxane D4492 or D7360 orD7504Acid wash color, max D848Bromine index, max D1492 or D5776Water D6304 or E1064 orD7375A If more than one method is listed, the producer and user should agree o
23、n the referee method.6. Keywords6.1 benzene; purity; zeoliteSUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue (D712412)that may impact the use of this standard. (Approved June 1, 2016.)(1) Removed D1209 and added D8005 in Section 2.
24、(2) Modified table in 3.1 to replace D1209 with D8005.(3) Removed D6069 from Section 2.(4) Modified table in 3.1 to remove D6069.4 Available 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.D7124
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28、ttee 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 174
