Advice for sampling powder blends
An experienced mixing consultant explains how understanding why you need to take samples of your powder blend can help you determine how to take samples.
In powder blending, taking samples to determine when your powders are adequately blended is a vital step in the process. But if you're like most powder processors, you've probably wondered about your sampling method's effectiveness: How can I be sure that I'm getting a truly representative sample of the blend? How do I know I'm using the right sampling device for my application? And how do I decide at what point to sample the blend -- during blending or as the mixture leaves the blender?