NF-1 NF-2 Differential Sticking Tester NF-2 type of adhesion coefficient tester Overview The instrument is an analog of the test analysis equipment, mainly for the monitoring of deep drilling and borehole drilling fluid in the coefficient o
Tester for pesticide residues introduction 2 Instrument Structure There is 4 buttons for the instrument in all, function is as follows : Enter button : Operator ensure his operation step is right , press the button for next operation . Back
Tester for Pesticide residues introduction 1 Testing Principle After digestion to the sample , all metals (Arsenic, Lead, Mercury, Cadmium, Chromium) are into ionic form , heavy metal and dithizone solution can form purple solution in near-