Artificial intelligence technologies in education. Functional subsystem for managing the progress of students in secondary vocational education programs. General provisions and test procedure
Workplace air. Determination of lithium hydroxide, sodium hydroxide, potassium hydroxide and calcium dihydroxide. Method by measurement of corresponding cations by suppressed ion chromatography
Electrical apparatus for the detection and measurement of flammable gases. Part 3. Performance requirements for group I apparatus indicating a volume fraction up to 100% methane in air
