ASTM E346-08
Standard Test Method for Analysis of Methanol

Standard No.
ASTM E346-08
Release Date
2008
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM E346-08e1
Latest
ASTM E346-08e1
Scope

These test methods are suitable for manufacturing control and for determining compliance with specification limits for the properties designated by the test methods. For those test methods that use the procedure given in other ASTM methods, those test methods should be consulted for additional information on the significance, use, and possible interferences.

1.1 These test methods cover chemical and physical tests for measuring the quality of methanol and appear in the following order:

Sections
Purity of Reagents4
Safety Precautions5
Sampling6
Acidity7 to 9
Carbonizables10 to 18
Color19 to 21
Distillation Range22 to 24
Permanganate Time25 to 27
Specific Gravity28 to 30
Water31 to 33
Water Miscibility34 to 37
Ethanol37 to 47
Acetone48 to 55
Trimethylamine56 to 65

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures and safety precautions for the chemicals used in this standard.

1.4 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. Specific hazards statements are given in Sections 5 and 15 and in 16.1, 16.4, and 52.2.2.

10.1 This test method describes a procedure for detecting the presence of impurities in methanol that carbonize or darken in the presence of concentrated sulfuric acid. The test method is applicable to methanol having a carbonizables content in the range from 0 to 70 on the platinum-cobalt scale (see Test Method D 1209).

37.1 This test method is applicable to methanol in which the ethanol content is between 0 and 1000 μg/g.

48.1 This test method covers a procedure for detecting the presence of acetone in methyl alcohol (methanol) in amounts greater than 0.003 weight % mass (m/m) .

56.1 This test method is used to determine the trimethylamine (TMA) content of refined methanol in the range of 10 to 100 μg/kg.

56.2 The odor of methanol has been determined to be caused primarily by the impurity TMA. The determination of TMA and its......

ASTM E346-08 Referenced Document

  • ASTM D1078 Standard Test Method for Distillation Range of Volatile Organic Liquids
  • ASTM D1193 Standard Specification for Reagent Water
  • ASTM D1363 Standard Test Method for Permanganate Time of Acetone and Methanol
  • ASTM D1613 Standard Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
  • ASTM D1722 Standard Test Method for Water Miscibility of Water-Soluble Solvents
  • ASTM D891 Standard Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals
  • ASTM E1140 Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
  • ASTM E180 Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
  • ASTM E203 Standard Test Method for Water Using Volumetric Karl Fischer Titration
  • ASTM E300 Standard Practice for Sampling Industrial Chemicals
  • ASTM F1209 Standard Guide for Ecological Considerations for the Use of Oilspill Dispersants in Freshwater and Other Inland Environments, Ponds and Sloughs

ASTM E346-08 history

Standard Test Method for Analysis of Methanol


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