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2. Safety cabinet - Wikipedia

   en.wikipedia.org/wiki/Safety_cabinet

   Safety cabinets with automatic door closing provide additional security. After a defined time interval, the cabinets close automatically, thus minimizing the exposure of the stored chemicals and reducing the risk of escaping hazardous vapors. In modern safety cabinets, a visual and acoustic warning signal is given when the door is closed. [5]

3. Fire door - Wikipedia

   en.wikipedia.org/wiki/Fire_door

   Door clearances at the door edge of the door frame (Wood Door), on the pull side of the door, do not exceed clearances listed in 4.8.4 (the clearance under the bottom of the door shall be a maximum of 3/4") and 6.3.1 (top & edges 1/8") Metal door (top & edges up to 3/16") The self-closing device is operational; that is, the active door ...

4. NYC law mandating self-closing doors in the spotlight after ...

   www.aol.com/nyc-law-mandating-self-closing...

   An obscure city law requiring self-closing doors in residential buildings is garnering attention in light of this past weekend’s horrific fire in a Bronx apartment tower.

5. Electromagnetic door holder - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_door_holder

   The door holders release, allowing the doors to close automatically using door closers. [1] [2] The electric power to keep the doors open is typically 12 VDC, 24 VDC (common), 24 VAC, 120 VAC, or 240 VAC. The closed doors may or may not mechanically latch or lock in the closed position.

6. Why You Should Always Close the Interior Doors in Your Home ...

   www.aol.com/lifestyle/why-always-close-interior...

   Closing all interior doors helps disperse the pressure throughout your home, reducing the effect that all of that force can have on your roof — basically the one thing that separates you from ...

7. HAZMAT Class 2 Gases - Wikipedia

   en.wikipedia.org/wiki/HAZMAT_Class_2_Gases

   Aerosols also fall into Class 2 divisions where an aerosol is defined as an article consisting of any non-refillable receptacle containing a gas compressed, liquefied or dissolved under pressure, the sole purpose of which is to expel a nonpoisonous (other than a Division 6.1 Packing Group III material) liquid, paste, or powder and fitted with a ...