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2. National Board of Boiler and Pressure Vessel Inspectors

   en.wikipedia.org/wiki/National_Board_of_Boiler...

   Pressure-retaining items can be registered with the National Board, requiring certain uniform quality standards be achieved certifying the manufacturing, testing, and inspection process. To obtain a certification the registered items have to be inspected by National Board-commissioned inspectors and built to required standards.

3. Backflow prevention device - Wikipedia

   en.wikipedia.org/wiki/Backflow_prevention_device

   Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

4. 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 principle ...

5. AOL

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   The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

6. The 5 Best Proteins to Eat If You’re Taking a Weight-Loss ...

   www.aol.com/5-best-proteins-eat-youre-001354105.html

   Protein is an essential macronutrient for everyone, and if you’re taking a weight loss drug, such as GLP-1 medications, you should be extra mindful about your intake.This is because muscle loss ...

7. American Society for Nondestructive Testing - Wikipedia

   en.wikipedia.org/wiki/American_Society_for...

   The American Society for Nondestructive Testing, Inc. or ASNT is a technical society for nondestructive testing (NDT) professionals. ASNT evolved from The American Industrial Radium and X-ray Society which was founded in 1941. [ 1 ]