Bovine Stroebech Heavy OilBovine Stroebech Heavy Oil 50 ml Peroxide tested Pre washed Oil Description and Prod. No. 50 ml Oil for overlay of media in glass bottle Prod. No. 2. 09. 050 Stroebech Oil is a pharmaceutical grade light mineral oil*), pre washed and sterile filtered light paraffin oil. Oil is often the key to poor results, use only BEA tested and Peroxide Value (POV) tested oil as minimum standard quality control. *) Liquid paraffin oil is a mineral oil and is a by