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Brown coals, hard coals and anthracite of the North-East regions for pulverized burning. Specifications
Document status: Cancelled
Drinking water. Methods for determination of polyacrylamide
Document status: Active
Low-power electronic tubes or valves. Measuring methods
Document status: Active
Low-power electronic tubes and valves. Methods of measurement of cathode heating time and readiness time
Document status: Active
Low-power electronic tubes and valves. Methods of measurement of current due to the cathode electron emission
Document status: Active