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# Half fill the bottle with water | # Half fill the bottle with water | ||
# Mix until all the additives are dissolved | # Mix until all the additives are dissolved | ||
# Adjust pH to 6.0 using the pH meter and adding drops of | # Adjust pH to 6.0 using the pH meter and adding drops of NaOH | ||
# Make up to 1 litre with water | # Make up to 1 litre with water | ||
# Autoclave | # Autoclave | ||