RU1814510C
|
|
Method of control of aqueous medium toxicity
|
RU2024017C1
|
|
Method of evaluation of contamination of water basins
|
SU1617329A1
|
|
Method of determining humic and fulvic acids in natural water
|
SU1640638A1
|
|
Method for determining chromium (yi) in solution
|
SU1539614A1
|
|
Method of contactless determination of organic substances in natural water
|
SU1578478A1
|
|
Method and apparatus for calibrating sensitivity of multichannel spectrophotometric system
|
SU1437732A1
|
|
Apparatus for sampling zoo-plankton
|
SU1472796A1
|
|
Device for taking surface and bottom samples of water
|
SU1555684A1
|
|
Method of remote determination of radio brightness temperature of surface
|
SU1112276A1
|
|
Sewage toxicity determination method
|
SU1024830A1
|
|
Method of petroleum product determination of natural waters
|
SU809066A1
|
|
Programmable control device
|
SU789712A1
|
|
Method of determining alkaline phosphatase activity
|
SU637694A1
|
|
Automatic precipitation-collecting/analysing gauge
|