Dear Dave,
That's a very good question, I realised there is no such thing as in-line density of a powder. I depends on the ratio of the particles to the transport medium.
The off-line measurement gives 30 kg/m3, but that also depends on the bulk stacking. If we transport the powder it may become more compact and dense due to vibrations.
Hmmmm..., any idea's? What else can I typically measure on a powder (particles) to characterize the product?
Thanks for helping,
CARF