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  2. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    A reduced pressure zone device (RPZD, RPZ, or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices , [ 1 ] [ 2 ] reduced pressure zone assemblies (RPZA), [ 3 ] or reduced pressure ...

  3. American Society of Safety Professionals - Wikipedia

    en.wikipedia.org/wiki/American_Society_of_Safety...

    The American Society of Safety Professionals (ASSP), formerly known as American Society of Safety Engineers (ASSE), is a global organization of occupational safety and health (OSH) professional members who manage, supervise, research and consult on work-related OSH concerns across all industries. Society members use risk-based approaches to ...

  4. Small arms ammunition pressure testing - Wikipedia

    en.wikipedia.org/wiki/Small_arms_ammunition...

    The test cartridge must be inserted into the chamber in such a way that the hole in the test cartridge case lines up with a gas port hole that channels the gas pressure from the cartridge case to the face of the sensor. The measurement accuracy of the pressure measurements with 21st century high-pressure sensors is expected to be ≤ 2%. [7]

  5. American National Standards Institute - Wikipedia

    en.wikipedia.org/wiki/American_National...

    American Society for Testing and Materials (now ASTM International) had been members of the United Engineering Society (UES). At the behest of the AIEE, they invited the U.S. government Departments of War, Navy (combined in 1947 to become the Department of Defense or DOD) and Commerce [9] to join in founding a national standards organization.

  6. Verification and validation - Wikipedia

    en.wikipedia.org/wiki/Verification_and_validation

    Verification is intended to check that a product, service, or system meets a set of design specifications. [6] [7] In the development phase, verification procedures involve performing special tests to model or simulate a portion, or the entirety, of a product, service, or system, then performing a review or analysis of the modeling results.

  7. Exercise and deep sleep give the brain a 24-hour boost - AOL

    www.aol.com/exercise-deep-sleep-brain-24...

    Improvement to cognitive performance caused by exercise could last for 24 hours, a new study shows. Scientists also linked getting 6 or more hours of sleep to better memory test scores the next day.

  8. Congo says mysterious disease killing dozens of kids finally ...

    www.aol.com/news/congo-says-mysterious-disease...

    At least 592 cases were reported after the alert was first raised by Congo's health ministry on Oct. 29. The ministry said the disease had a fatality rate of 6.25%.

  9. Safety testing of explosives - Wikipedia

    en.wikipedia.org/wiki/Safety_testing_of_explosives

    The two most common sensitivity test and analysis methods are the Bruceton analysis and Neyer d-optimal test. These methods allow the user to determine the 50% initiation level (the distance at which 50% of the samples will "go"), and a standard deviation. Impact testing may also be performed with liquid samples confined in special cells.