The pressure transmitting medium was a mixture of castor oil (Chemical and Lab Supplies, Bangkok, Thailand) and 98% ethanol (Chemical and Lab Supplies) at the ratio of 20:80 (v/v) (Chaikham and Apichartsrangkoon, 2012a, 2012b).
The pressure transmitting medium was a mixture of castoroil (Chemical and Lab Supplies, Bangkok, Thailand) and 98%ethanol (Chemical and Lab Supplies) at the ratio of 20:80(v/v) (Chaikham and Apichartsrangkoon, 2012a, 2012b).