ohmond

WHO-recommended handrub formulations - WHO Guidelines on ...

Then take a piece of soft sponge, well washed and cleaned from everything gritty, ... or whiting sifted through muslin; rub it lightly and quickly off again with a cloth; then ... are not varnished the greatest care is necessary to keep them quite dry, so as not ... Procure a smooth board, free from knots, or one covered with leather.