TY - GEN AU - Dia,S AU - Guyot,J C AU - Lemahieu,G AU - Traisnel,M TI - [Air or helium comparison pycnometer] SN - 0047-2166 PY - 1972///0522 KW - Air KW - Chemistry, Physical KW - instrumentation KW - Densitometry KW - Helium KW - Powders KW - Technology, Pharmaceutical N1 - Publication Type: Journal Article ER -