Ключевые слова:
Marking, Testing conditions, Flow rates, Air, Working conditions (physical), Accuracy, Occupational safety, Performance testing, Gas analyzers, Instructions for use, Life (durability), Pollutant gases, Stability, Pumps, Environmental testing, Samples, Sampling methods, Pressure, Gas analysis, Mass, Classification systems, Particulate air pollutants, Chemical analysis and testing, Industrial air pollutants, Test equipment, Temperature, Environment (working)