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This specification covers two grades of solid caustic potash as follows: Type I, 85 % potassium hydroxide; and Type II, 90 % potassium hydroxide. Sampled specimens shall be tested and conform accordingly to chemical requirements as to total alkalinity of KOH, and specified maximum compositions for K2CO3, KCl, and Fe.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers two grades of solid caustic potash, 85 % and 90 %.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.3 Review the current Materials Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, handling and safety precautions.
1.4 The following safety hazards caveat pertains only to the test methods portion, Section 6: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E291 Test Methods for Chemical Analysis of Caustic Soda and Caustic Potash (Sodium Hydroxide and Potassium Hydroxide)
E300 Practice for Sampling Industrial Chemicals
ICS Number Code 71.060.40 (Bases)
UNSPSC Code 12352305(Inorganic hydroxides)