1、Designation:E203715Standard Test Method forBromine Chloride in Liquid Chlorine by High PerformanceLiquid Chromatography(HPLC)1This standard is issued under the fixed designation E2037;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,t
2、he year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method uses high performance liquid chroma-tography(HPLC)to determine bromine chloride levels inliquid
3、 chlorine at the 10 to 1400 g/g(ppm)range.1.2 Review the current safety data sheet(SDS)for detailedinformation concerning toxicity,first aid procedures,and safetyprecautions.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4
4、 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.Specific hazardstatem
5、ents are given in Section 8.2.Referenced Documents2.1 ASTM Standards:2E180 Practice for Determining the Precision of ASTMMethods for Analysis and Testing of Industrial and Spe-cialty Chemicals(Withdrawn 2009)3E806 Test Method for Carbon Tetrachloride and Chloroformin Liquid Chlorine by Direct Inject
6、ion(Gas Chromato-graphic Procedure)2.2 Federal Standards:4CFR 173 Title 49 Transportation;Shippers General Re-quirements for Shipments and Packaging,including Sec-tions:173.304Charging of Cylinders with Liquefied Com-pressed Gas173.314 Requirements for Compressed Gases in TankCars173.315 Compressed
7、Gases in Cargo Tanks and PortableTank Containers2.3 Other Document:5Chlorine Institute Pamphlet No.1 Chlorine Basics3.Summary of Test Method3.1 Weighed samples of chlorine delivered into a cooledgraduated centrifuge tube.One mL of cooled HPLC eluent isadded before the chlorine is allowed to evaporat
8、e.After thechlorine has evaporated the remaining eluent is analyzeddirectly on the HPLC for bromine chloride concentration.4.Significance and Use4.1 This test method was developed for the determination ofbromine chloride in liquid chlorine.Bromide is a commoncontaminant in all salt sources that are
9、used in the productionof chlorine.This bromide content of the salt is converted intobromine chloride in the liquid chlorine product.This testmethod is sensitive enough to measure the levels of brominechloride observed in normal production chlorine.5.Interferences5.1 This test method is selective for
10、 bromine chloride.Atthis time there are no known interference in the materials usedin this test method.5.2 Contact with any metal surfaces should be avoided dueto the corrosive nature of the sample.6.Apparatus6.1 Ahigh performance liquid chromatograph(HPLC)com-posed of the following:6.1.1 HPLC Pump,
11、capable of 1 mL/min flow,6.1.2 HPLC UV Detector,capable of operating at 221 nmwith a 1-cm cell,6.1.3 HPLC Injection Valve,20 l loop,all nonmetal,and1This test method is under the jurisdiction of ASTM Committee E15 onIndustrial and Specialty Chemicals and is the direct responsibility of SubcommitteeE
12、15.02 on Product Standards.Current edition approved June 1,2015.Published June 2015.Originallyapproved in 1999.Last previous edition approved in 2007 as E2037-07.DOI:10.1520/E2037-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org
13、.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from U.S.Government Publishing Office,732 N.Capitol St.,NW,Washington,DC 20401-0001,http
14、:/www.gpo.gov.5Available from The Chlorine Institute,1300 Wilson Blvd.,Ste.525,Arlington,VA 22209,http:/www.chlorineinstitute.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.1.4 HPLC Column,C18 reverse phase,25 cm by 4.6 mm.6.2 Plas
15、tic Syringes,1,2.5,5,10,20,and 60 mL.6.3 Nonmetallic Syringe Needles.6.4 Top Loader Balance,capable of 0.01 g resolution with a1-kg capacity.6.5 TFE-Fluorocarbon Tubing,1.59 mm outside diameter.6.6 Stainless Steel Sample Cylinder,with a needle valve onone end.6.7 Graduated Centrifuge Tube,15 mL.7.Re
16、agents7.1 Purity of ReagentsUnless otherwise indicated,it isintended that all reagents shall conform to the specifications ofthe Committee onAnalytical Reagents of theAmerican Chemi-cal Society,where such specifications are available.6Othergrades may be used,provided it is first ascertained that thereagent is of sufficiently high purity to permit its use withoutlessening the accuracy of the determination.7.2 Water,HPLC grade.7.3 Methanol,HPLC grade.7.4 Sodium Acetate,reagent grade.7.5 Glacial Ac
