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2. Positive pressure enclosure - Wikipedia

   en.wikipedia.org/wiki/Positive_pressure_enclosure

   A positive pressure enclosure, also known as a welding habitat or hot work habitat, is a chamber used to provide a safe working environment for performing hot work in the presence of explosive gases or vapors. They are commonly used in welding environments and are associated with the offshore oil industry. [1]

3. Occupational Safety and Health Act (United States) - Wikipedia

   en.wikipedia.org/wiki/Occupational_Safety_and...

   Long title: An Act to assure safe and healthful working conditions for working men and women; by authorizing enforcement of the standards developed under the Act; by assisting and encouraging the States in their efforts to assure safe and healthful working conditions; by providing for research, information, education, and training in the field of occupational safety and health; and for other ...

4. Welding helmet - Wikipedia

   en.wikipedia.org/wiki/Welding_helmet

   A welding helmet is a piece of personal protective equipment used by welders to protect the user from concentrated light and flying particles. Different welding processes need stronger lens shades with auto-darkening filters, while goggles suffice for others. OSHA and ANSI regulate this technology, defining shades based on the transmittance of ...

5. Occupational Safety and Health Administration - Wikipedia

   en.wikipedia.org/wiki/Occupational_Safety_and...

   OSHA's protection applies to all federal agencies. Section 19 of the OSH Act makes federal agency heads responsible for providing safe and healthful working conditions for their workers. OSHA conducts inspections of federal facilities in response to workers' reports of hazards and under programs that target high-hazard federal workplaces. [8]

6. Engineering controls - Wikipedia

   en.wikipedia.org/wiki/Engineering_controls

   The OSHA permissible exposure limit (PEL) is 90 dBA as an 8 hr-TWA, using a 5 dBA exchange rate. [22] The exchange rate means that when the noise level is increased by either 3 dBA (according to the NIOSH REL) or 5 dBA (according to the OSHA PEL), the amount of time a person can be exposed to a certain noise level to receive the same dose is ...

7. Uniform Mechanical Code - Wikipedia

   en.wikipedia.org/wiki/Uniform_Mechanical_Code

   New requirements for fuel gas piping appliance shutoff valves, test pressure and overpressure protection devices; New tube fastener provisions for radiant heating and cooling; New requirements for residential compressed natural gas (CNG) fueling systems; New fire-extinguishing equipment and carbon monoxide detection requirements for exhaust systems