Toilet Soap Grade 1 TFM Do - You Use Toilet Soap or ...
Jun 23, 2020·According to International Standards (ISO) and Bureau of Indian Standards (BIS), the Grade I soap should have 76 % minimum TFM, Grade II soap with TFM 70-75% and Grade III soap with 60% minimum TFM. Usually, bathing bars do have a TFM value of less than 50%. Higher the TFM quantity in the soap, better is its quality.