Site tesitng of Impressed current anodes before installation

[elecsun]

Can someone explain in detail what are the field tests which can be carried to confirm anode material(We are using imressed current anodes for tank bottm protection-mixed metal oxide anodes)before installtion.i know we can get the material confirmation certificates from manufucturer. Whats are the simple field tests which confirm the quality of anode materials?

 

[0707]

I supose that with a PMI (Positive Material Identification) you can confirme material composition of anode materials.

 

[mshimko]

I'm confused.

I would want to confirm the material composition of SACRIFICIAL anodes.

I have not heard of confirming the material of an IMPRESSED CURRENT anode. Instead, I merely ensure the purchase spec is properly written. I do care about the outer coating, but I've not heard of there being problems.

 

[0707]

According Norsok standard common requirements for cathodic protection the Chemical composition of aluminum anode materials shall be of the AlZnIn type conforming to table bellow:

ELEMENT MAX % MIN %
Zinc (Zn) 5.5 2.5
Indium (In) 0.040 0.015
Iron (Fe) 0.09
Silicon (Si) 0.10
Copper (Cu) 0.005
Others (Each) 0.02
Aluminium (Al) Remainder