DIN EN 12689:1998-10 Biotechnology - Guidance on assessment of the purity, biological activity and stability of microorganism based products; German version EN 12689:1998
1998DIN EN 12689:1998-10 Biotechnology - Guidance on assessment of the purity, biological activity and stability of microorganism based products; German version EN 12689:1998
1998DIN EN 12689:1998 Biotechnology - Guidance on assessment of the purity, biological activity and stability of microorganism based products; German version EN 12689:1998