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2. Pressure washing - Wikipedia

   en.wikipedia.org/wiki/Pressure_washing

   A pressure washer is used to remove old paint from a boat. Patio flagstones being pressure washed using a rotary nozzle. Pressure washing or power washing is the use of high-pressure water spray to remove loose paint, mold, grime, dust, mud, and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces.

3. Soft washing - Wikipedia

   en.wikipedia.org/wiki/Soft_washing

   Soft washing is a cleaning method using low pressure water. More recently, the term "softwashing" has been used to describe any form of spraying chemicals at buildings where solutions (typically sodium hypochlorite based softwashing chemicals) are used to remove mildew, bacteria, algae and other organic stains from roofs and other building exteriors.

4. AS/NZS 1200 - Wikipedia

   en.wikipedia.org/wiki/AS/NZS_1200

   Some pressure equipment (excluding pressure piping) is regulated in the state of Queensland as per Schedule 4 (13) of the Workplace Health and Safety Regulation 2008. [3] In this Schedule, it refers to certain criteria being met per AS 4343, which scope is to classify hazard levels of pressure equipment to AS/NZS 1200. [4] New South Wales

5. How To Clean Enameled Cast Iron To Remove Stains And Stuck-On ...

   www.aol.com/clean-enameled-cast-iron-remove...

   Mix a paste and apply it, then wash away. Another way to eliminate odors from cooking on the enameled cast iron is to boil water with lemon slices. This can break down any lingering smells that ...

6. Glossary of oilfield jargon - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_oilfield_jargon

   Free point: The highest point at which the drill pipe is "free" or not stuck. Free-point tools are designed to measure torque and stretch in tubing, casings, and drill pipes and to provide accurate free pipe indication. A common method which involves deploying a wireline device to estimate the depth at which the pipe string is stuck.

7. Hydraulic head - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_head

   In fluid dynamics, head is a concept that relates the energy in an incompressible fluid to the height of an equivalent static column of that fluid. From Bernoulli's principle, the total energy at a given point in a fluid is the kinetic energy associated with the speed of flow of the fluid, plus energy from static pressure in the fluid, plus energy from the height of the fluid relative to an ...