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National Aeronautics and Space Administration, Washington, DC. – 1972
The sensor is a mass spectrometer system which continuously monitors the atmospheric constituents of hydrogen, water vapor, nitrogen, oxygen, and carbon dioxide, and monitors the Freons on a demand sampling basis. The manual provides a system description, operational procedures, and maintenance and troubleshooting instructions. Circuit diagrams…
Descriptors: Air Pollution, Environment, Instrumentation, Pollution
Direct linkProject WET Foundation, 2003
This 100-page manual serves as a technical reference for the "Healthy Water, Healthy People Water Quality Educators Guide" and the "Healthy Water Healthy People Testing Kits". Yielding in-depth information about ten water quality parameters, it answers questions about water quality testing using technical overviews, data interpretation guidelines,…
Descriptors: Testing, Reference Materials, Water, Water Quality
