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Significance and Use
The permanganate time can be used to judge the presence of oxidizable materials that may be associated with manufacture or contamination during distribution and to assess compliance with a specification.
Many chemical processes that use acetone or methanol, or both, involve catalyst, metals, or ligand complexes that are sensitive to oxidation. Since oxidizable contaminants may affect the efficiency of these processes, this test method provides a comparative test for manufacturing control and assessing compliance with a specification.
1.1 This test method covers the detection in acetone and methanol of the presence of impurities that reduce potassium permanganate.
1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 For specific hazard information and guidance, consult the supplier's Material Safety Data Sheet.
1.5 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.
D329 Specification for Acetone
D1152 Specification for Methanol (Methyl Alcohol)
D1193 Specification for Reagent Water
D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E346 Test Methods for Analysis of Methanol
ICS Number Code 71.080.60 (Alcohols. Ethers); 71.080.80 (Aldehydes and ketones)
UNSPSC Code 12352121(Organic hydroxides); 12352100(Organic derivatives and substituted compounds)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D1363-06(2011), Standard Test Method for Permanganate Time of Acetone and Methanol, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top