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AWWA B511-23 Potassium Hydroxide, 2023
- Foreword [Go to Page]
- I. Introduction. [Go to Page]
- I.A. Background. Technical grades of potassium hydroxide, KOH, are also known as caustic potash. Potassium hydroxide is produced electrolytically from potassium chloride in accordance with the reaction: [Go to Page]
- I.B. History. The first edition of the standard for potassium hydroxide was prepared under the direction of the AWWA Standards Committee on Softening and Conditioning Chemicals. It was designated ANSI/AWWA B511-90, Standard for Potassium Hydroxide, approv [Go to Page]
- I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct
- II. Special Issues. [Go to Page]
- II.A. Handling Precautions. Handling of all forms of potassium hydroxide involves several extreme hazards. Considerable heat is generated in the solution or dilution process; therefore, the rate of dilution and the method of cooling should be carefully co
- III. Use of This Standard. It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. [Go to Page]
- III.A. Purchaser Options and Alternatives. The following information should be provided by the purchaser. [Go to Page]
- III.B. Modification to Standard. Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser.
- IV. Major Revisions. Major changes made to the standard in this revision include the following:
- V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or e-mail at standards@awwa.org.
- AWWA Standard
- SECTION 1: GENERAL
- Sec. 1.1 Scope
- Sec. 1.2 Purpose
- Sec. 1.3 Application
- SECTION 2: REFERENCES
- SECTION 3: DEFINITIONS
- SECTION 4: REQUIREMENTS
- Sec. 4.1 Physical Requirements
- Sec. 4.2 Chemical Requirements
- Sec. 4.3 Impurities*
- SECTION 5: VERIFICATION
- Sec. 5.1 Sampling
- Sec. 5.2 Test Procedures [Go to Page]
