B Thread Starter Bob Oct 19, 2000 #1 I have an old NBS Cement Powder Standard Reference Material No. 114N which is used to calibrate the Blaine Air permeability apparatus. I do not know the surface area of this old Standard Cement. Can anyone help out?
I have an old NBS Cement Powder Standard Reference Material No. 114N which is used to calibrate the Blaine Air permeability apparatus. I do not know the surface area of this old Standard Cement. Can anyone help out?