Is water white phosphoric acid based emulsified mixture of surfactants and swabbing or immersion time 15-20 minutes,
Higher, concentration and longer time may be require is contaminants to be removed are heavey,
dry oils film etc. The chemical is highly acidic, bath should be prepared in plastics of MS+FRP lined tank.
Concentration - 25% to 35%
Time-15 to 30 min