Quick release devices

Should not be fastened with locks other than antipanic catches or other quick releasing devices. 

Quick Release Devices (Clip/Lock/Latch/Cam/Clamp)... 

FI 6] SELF-TAPPING SCREW FI 7] QUICK RELEASE DEVICES... 

Retaining ring Quick release devices Threaded fasteners... 

Safety features are essential to a microwave apparatus. An exhaust fan draws the air from the oven to a solvent vapor detector. Should solvent vapors be detected, the magnetron is shut off automatically while the fan keeps running. Each vessel has a rupture membrane that breaks if the pressure in the vessel exceeds the preset limit. In the case of a membrane rupture, solvent vapor escapes into an expansion chamber, which is connected to the vessels through vent tubing. To prevent excessive pressure buildup, some manufacturer use resealable vessels. A spring device allows the vessel to open and close quickly, releasing the excess pressure. 

Pyrotechnic device—On a spacecraft, an explosive device used for quick release of some mechanism or object. Explosive bolts used to separate rocket stages or the solid rocket boosters used during a space shuttle launch are examples of pyrotechnic devices. 

Release Devices, Explosive Articles consisting of a small charge of explosive with means of initiation. They sever rods or links to release equipment quickly. UN App. B, ICAO A2, US 173.59, lATAApp. A... 

There must be a built-in device for quick release of the nozzle in the event of premature cure, so that the barrel may be cleared quickly. 

To enable the body to sustain a high fault current it is essential that the fault interrupting device (relay or release) is quick responding. For domestic applications, it is recommended to be less than a heart beat. 

In contrast to matrices containing (quickly dissolving) , average release rates for slowly dissolving BSA are very slow even at 50% (w/w) loading release rates for 30% matrix loading were so small that amounts released were almost within the tolerance of the HPLC assay. With quickly dissolved BSA, matrices behaved similarly to devices containing . 

Because of the reaction rate control afforded by the organic media, the hydrogen reactor can be a simple device. Water and hydride slurry are metered into the reactor, where they are thoroughly mixed to ensure complete reaction. This reaction goes to completion quickly, leaving a powdery waste. Hydrogen production rate is controlled by the injection rate of water and hydride. Heat released by the reaction is removed by the evaporation of some of the added water. No complicated control systems are needed to ensure proper and safe operation of the hydrogen reactor. 

It should be possible to easily isolate fluids in equipment and piping when potentially dangerous situations occur. This can be done using emergency block valves (EBVs). An EBV is a manually or remotely actuated protective device that should be used to provide manual or remote shutoff of uncontrolled gas or liquid flow releases. EBVs can be used to isolate a vessel or other equipment, or an entire unit operation. Manual valves are often used on piping at block limits where it is unlikely that there would be a hazard to personnel if an accident occurs. Remotely controlled EBVs are recommended on tanks and on piping in areas where it may be hazardous for personnel in the case of an accident, or where a quick response may be necessary. 

A more down-to-Earth use of fuel cells is found in traffic-law enforcement. Police officers need quick and simple ways to determine a person s blood alcohol level in the field. In the time it takes to bring a person to the station or to a hospital for a blood or urine test, the person s blood alcohol content (BAG) might change. Fuel cells, such as the one in the device shown above, provide a quick and accurate way to measure BAG from a breath sample. The alcohol ethanol from the person s breath is oxidized to acetic acid at the anode. At the cathode, gaseous oxygen is reduced and combined with hydronium ions (released from the anode) to form water. The reactions generate an electric current. The size of this current is related to the BAG. 

Since formaldehyde is a reducing agent, devices have been constructed to remove it by means of a redox reaction. Indoor air is circulated through an air purifier containing an oxidant such as Al203/KMn04, which converts formaldehyde to the less harmful and less volatile formic acid (HCOOH). Proper ventilation is the best way to remove formaldehyde. However, care should be taken not to remove the air from a room too quickly without replenishment, since a reduced pressure would cause the formaldehyde resins to decompose faster, resulting in the release of more formaldehyde. 

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