I was asking myself '
where' to take
this macrosection to reveal the amount of dilution.
Or should be taken more than one (1) macrosection in order to achieve an appropriate
average determination?
Anyway. Additionally to js' advice, maybe this helps as well, see attachment.
You may wish to have a closer look at 'page 17' of the document*.
And, maybe also quite delightful and interesting to you:
https://www.youtube.com/watch?list=PLI-jKVKu0QrmAJPlxX95Gig-KAgWWKG6R&v=t2JZYn819DQ.You may wish to have a closer look at 'part 5' of this series.
Regards.
EDIT:
*) Due to exceeding the size limitations of this forum; please note that I had to delete the 'Brazing' and 'Soldering' chapter from the attached pdf + I had to renew the video link.