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Related Articles


LeFranc Testing

LeFranc Testing

LeFranc Testing


Can anyone help with the specifications around LeFranc Testing, such as a standard? i have been scoped to perform a series of these tests down boreholes.

Can i assume its a standard Falling or Constant head test and i can use ASTM or other related standards??

Any help would be much appreciated.

RE: LeFranc Testing

There is a french norm for Lefranc test : NF P 94-132 october 2000. You must get it (not free !) from AFNOR, they have a website where you can get them

RE: LeFranc Testing

Thanks Bigharvey,

That really helps. For some reason my searches were not bringing anything like this up.

You got back to me just in time - we are drilling on monday.


RE: LeFranc Testing

A good reference, although it's not a norm and it's in french, is the book by Maurice Cassan, "Les essais d'eau dans la reconnaissance des sols" , Eyrolles,1980. In this book you will find everything about carrying out and interpreting Lefranc and Nasberg tests.

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