Thank you very much LittleInch, I appreciate your response.
That is what I figured, it seems that every company has its own standards.
Is it possible to mention some of the major companies names? I will try to contact them and see if they will provide more information.
In particular...
Hello ..
I am a researcher working on buried pipelines detection using ground penetrating radar. In order to improve the performance of the radar, it will be very helpful to know the usual practice that is followed when burying parallel pipelines.
Are they usually buried beside each other...
