ASTM E2664-16
Standard Test Method for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol

Standard No.
ASTM E2664-16
Release Date
2016
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM E2664-22
Latest
ASTM E2664-22
Scope

3.1 The methanol wall wash test is performed to determine the cleanliness and suitability of cargo tanks or compartments on a marine vessel prior to loading polyester grade monoethylene glycol. Polyester grade monoethylene glycol has very high quality requirements and must be handled with care, as it is adversely affected by oxygen, hydrocarbons, water and chloride. It is especially susceptible to aromatic contamination, which degrades UV transmittance. Possible sources of contamination are the prior cargoes and cleaning agents. The methanol wall wash procedure provides a representative sampling of the impurities and contamination present on the sides of the cargo tank.

3.2 The test methods used for analysis of the methanol wall wash samples are capable of determining low levels of impurities or contamination in methanol. These tests include appearance, color, hydrocarbons and chloride. The producers of polyester grade monoethylene glycol need confirmation of the cleanliness and suitability of the marine vessel’s tanks prior to loading with in-specification material. Cargo tanks that do not pass the wall wash test should not be loaded.

3.3 Alternative test methods and technology for several of the methods can be found in the Appendix. The alternative test methods do not have precision data for the application of these methods in analyzing methanol. Use of these methods is optional and individuals using the alternative methods should assure themselves that the method is sufficiently precise. Precision data is only for the original test methods listed.

1.1 This test method covers the methanol wall wash procedure and the chemical and physical analysis of the wall wash sampling for cargo tanks of marine vessels handling polyester grade monoethylene glycol. The key sections for the wall wash procedure and test methods appear in the following order:

 

Sections

Wall Wash Procedure

7 and 8

Appearance

9 – 11

Color

12 – 14

Hydrocarbons

ASTM E2664-16 Referenced Document

  • ASTM D1193 Standard Specification for Reagent Water
  • ASTM D1209 Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
  • ASTM D1722 Standard Test Method for Water Miscibility of Water-Soluble Solvents
  • ASTM D4176 Standard Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
  • ASTM D5386 Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
  • ASTM E180 Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
  • ASTM E2469 Standard Test Method for Chloride in Mono-, Di- and Tri-ethylene Glycol by Ion Chromatography
  • ASTM E2680 Standard Test Method for Appearance of Clear, Transparent Liquids (Visual Inspection Procedure)

ASTM E2664-16 history

  • 2022 ASTM E2664-22 Standard Practice for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol
  • 2016 ASTM E2664-16 Standard Test Method for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol
  • 2009 ASTM E2664-09a Standard Test Method for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol
  • 2009 ASTM E2664-09 Standard Test Method for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol
Standard Test Method for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol


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