There are any ASTM or British standards of porosity measurement for the hardened concrete?

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David Flores Vidriales

I have used this in the past:

BS 1881-122:2011 Water absorption
BS EN 12390-8 Depth of penetration of water under pressure
ASTM C 642

I'm adding as a file C 642, i do not have the other ones.

I hope it helps

Om Prakash Chhangani

Attached article may be useful for you

Natividad Garcia

Please find attached this information that will be very helpful for you