Dear list members! I would be grateful for any advice or reference about correct (accepted) rates of sampling (for quality evaluation purposes) from big, reasonably homogeneous, chemical production batches (like inks, resins, medicines). Is there any international or regional standards for such situation? I don't know if MIL-STD has appropriate section. Of course, I'd like the sampling be both representative and economical. Thanks in advance, Alex Korenev Indigo Statistician ([log in to unmask]) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%