1.Micro-biocide Metham Sodium 2.manufacture of pulp,paper,leath,water treatment 3.high efficiency 4. ... STORAGE LIFE At least 24 months from the date of manufacture in the original sealed container at ambient temperature. Store away ... Safety Data Sheet for Metham Sodium. Micro-biocide Metham Sodium is for the manufacture of pulp,paper,leath,water treatment