thePetroStreet

sorry ashfaqanwar
An up-grader is a refinery where the main produce is crude oil, from the list of types of fluids it looked like it was written for an up-grader. who did you write it for?

Hi Sakib
I am on holiday right now,but i am going back to Canada were i work Monday and i will sent you some study material from there. that is where i keep most of my files.i recommend you do the 510 first that is where most of the money is at.

Hi I have enjoyed reading the forum. you have very informative posting.I am a API 510,570 & 653 inspector and i have been working in the field for about 30 years. I have some study material for the cert's i have if anyone needs them. also i will be taken the 651 next year if anyone has anything on ...

thank you that looks like a good book. which up-grader was it wrote for?