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Sampling size and distance for Petrographic test

Sampling size and distance for Petrographic test

Sampling size and distance for Petrographic test

(OP)
Dear

Can you Help me out that, how many sample/ at what distance for Petrographic test to be taken for 1 KM for offshore concrete pipeline

RE: Sampling size and distance for Petrographic test

There are no set criteria for this. Sampling is done on an as-needed basis, usually to show a consistency of the product or to show a cause for problematic conditions.

Remember that for petrography, you'll need a destructive sample that must be repaired for the in-place pipeline. This can get both problematic and expensive.

Why do you need a petrographic examination? Are you having problems with the pipe?

RE: Sampling size and distance for Petrographic test

(OP)
Thanks Ron!

We wan to calculate remaining life assessment of pipe line and it 2.2M dia pipe wih length 1 KM off shore and there r manhole on every 100 meter with same material. We take sample of concrete from that man hole.

Can you again check how many sample we can take for testing ( 2 or 4 or on every 100 meter?) Is there standard for taking samples?

Or we can take 2 sample from both ends?


Regards

Manoj

RE: Sampling size and distance for Petrographic test

(OP)
We want to calculate remaining life assessment of pipe line and it 2.2M dia pipe wih length 1 KM off shore and there r manhole on every 100 meter with same material. We take sample of concrete from that man hole.

Can you again check how many sample we can take for testing ( 2 or 4 or on every 100 meter?) Is there standard for taking samples?

Or we can take 2 sample from both ends?


Regards

Mano

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