Standard Practice for Methanol Wall Wash of Marine Vessels Handling Polyester Grade Monoethylene Glycol

Importancia y uso:

4.1 The methanol wall wash practice 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.

Subcomité:

D16.14

Volúmen:

06.04

Número ICS:

13.300 (Protection against dangerous goods), 47.020.85 (Cargo spaces)

Palabras clave:

appearance; chloride; color; hydrocarbons; methanol; polyester grade monoethylene glycol; wall wash;