Introduction to BIOCHEMICAL OXYGEN DEMAND Technical Information. The BOD Incubator Model 205 holds up to 62. Bs En 197-1 Cement Free Download more. Hach also offers a BOD Incubator and BOD. Incubator, BOD, Compact, Model 205, 110 Vac Order Status Contact Us Login. Hach has a complete portfolio of instruments and chemistries with support and services.