ASTM_E_1456_-_08.pdf

Designation:E145608Standard Specification forCaustic Potash;Solid(Potassium Hydroxide;Solid)1This standard is issued under the fixed designation E1456;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 indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification covers two grades of solid causticpotash,85%and 90%.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.3 Review the current Materials Safety Data Sheets(MSDS)for detailed information concerning toxicity,first aidprocedures,handling and safety precautions.1.4 The following safety hazards caveat pertains only to thetest methods portion,Section 6:This standard does not purportto address all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E291 Test Methods for Chemical Analysis of Caustic Sodaand Caustic Potash(Sodium Hydroxide and PotassiumHydroxide)E300 Practice for Sampling Industrial Chemicals3.Classification3.1 Type ICaustic potash,solid form,85%potassiumhydroxide.3.2 Type IICaustic potash,solid form,90%potassiumhydroxide.4.Chemical Requirements4.1 Caustic potash shall conform to the chemical require-ments listed in Table 1.5.Sampling5.1 Caustic potash shall be sampled in accordance with theappropriate sections of Practice E300 for solid chemicals.6.Test Methods6.1 Analyze caustic potash in accordance with the appli-cable sections of Test Methods E291.7.Keywords7.1 caustic potash;potassium hydroxide;solid1This specification is under the jurisdiction of ASTM Committee E15 onIndustrial and Specialty Chemicals and is the direct responsibility of SubcommitteeE15.01 on General Standards.Current edition approved April 1,2008.Published May 2008.Originallyapproved in 1992.Last previous edition approved in 2002 as E145697(2002).DOI:10.1520/E1456-08.2For referenced 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.*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 States1 SUMMARY OF CHANGESCommittee E15 has identified the location of selected changes to this standard since the last issue(E145697(2002)that may impact the use of this standard.(1)Updated units of measure to comply with the InternationalSystem of Units(SI).(2)Added subsection to Scope stating that the SI units are toconsidered standard.(3)Added Summary of Changes section.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 such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received 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).Permission rights to photocopy the standard may also be secured from the ASTM website(www.astm.org/COPYRIGHT/).TABLE 1 Chemical RequirementsChemicalType IType IITotal alkalinity as KOH,%by mass(weight)85.0 min90.0 minK2CO3,%by mass(weight)0.8 max0.8 maxKCl,g/g(ppm)150 max150 maxFe,g/g(ppm)5.0 max5.0 maxE1456 082