Laboratory purification plants to determine the biodegradability, according to DIN 38412

Laboratory purification plants to determine the biodegradability, according to DIN 38412
e.g. for the Coupled Units Test in acc. with OECD 303 A, complete.
optional:
-Dentrification step with pump and stirrers
-Oxygen control, consisting of:
Oxygen measuring unit for preliminary sedimentation with a voltage output for switching the air supply on and off behrotest® GWS 200 limit switch. Operating capacity 0 to 200%, corresponds to 0 to 19.9 mg/l Vessels made of borosilicate glass 3.3
Other laboratory purification plants on request.