1、Designation: E 1456 97 (Reapproved 2002)Standard Specification forCaustic Potash; Solid (Potassium Hydroxide; Solid)1This standard is issued under the fixed designation E 1456; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the ye
2、ar of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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. Scope1.1 This specification covers two
3、grades of solid causticpotash, 85 % and 90 %.1.2 The following safety hazards caveat pertains only to thetest methods portion, Section 6, described in this specification:This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the responsibilityof t
4、he user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.1.3 Review the current Materials Safety Data Sheets(MSDS) for detailed information information comcerningtoxicity, first aid procedures, handling and saf
5、ety precautions.2. Referenced Documents2.1 ASTM Standards:E 291 Test Methods for Chemical Analysis of Caustic Sodaand Caustic Potash (Sodium Hydroxide and PotassiumHydroxide)2E 300 Practice for Sampling Industrial Chemicals23. Classification3.1 Type ICaustic potash, solid form, 85 % potassiumhydroxi
6、de.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 E 300 for solid chemicals.6
7、. Test Methods6.1 Analyze caustic potash in accordance with the appli-cable sections of Test Methods E 291.7. Keywords7.1 caustic potash; potassium hydroxide; solidASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this
8、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 r
9、eviewed every five years andif not revised, either reapproved or withdrawn.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 therespon
10、sible 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
11、 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).1This specificati
12、on 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 Oct. 10, 2002. Published February 2003. Originallyapproved in 1992. Last previous edition approved in 1997 as E
13、 1456 97.2Annual Book of ASTM Standards, Vol 15.05.TABLE 1 Chemical RequirementsChemical Type I Type IITotal alkalinity as KOH, % by weight 85.0 min 90.0 minK2CO3, % by weight 0.8 max 0.8 maxKCl, ppm 150 max 150 maxFe, ppm 5.0 max 5.0 max1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
