Hi there!
The companies i worked with are not using mfg module for bulk items where ASTM conversions are required. They do handle the transactions using the bulk transactions applications instead and this is an obvious problem since you cannot plan the transactions ahead
One company actually does raise work orders for the blends and cancel the work order once the blending has been performed using standard bulk tramnsactions
There is an open bug, 14185268 , to request this functionality and i would hop that all ECS companies would request that this change be implemented in JDE as it does work in the old World software
/Aarto