Unless a portable tank in dedicated service is fitted with an approved relief device constructed of materials compatible with the load, such device shall comprise a frangible disc preceding a spring loaded device.

Unless a portable tank in dedicated service is fitted with an approved relief device constructed of materials compatible with the load, the relief device shall comprise a frangible disc preceding a spring loaded pressure relief device.

Incorporation of fail safe, sterilization, self destruct features, et cetera, should be considered (reference STANAG 4187).

6.6.2.6.3 Every bottom discharge outlet, except as provided in 6.6.2.6.2, shall be equipped with three serially fitted and mutually independent shut off devices.

4.2.1.13.6 Portable tanks shall be fitted with pressure relief devices and emergency relief devices.

No stop valve shall be installed between the shell and the pressure relief devices except when duplicate devices are provided for maintenance or other reasons and the stop valves serving the devices actually in use are locked open or the stop valves are interlocked so that the requirements of 6.6.4.7 are always fulfilled.

No stop valve shall be installed between the shell and the pressure relief devices except where duplicate devices are provided for maintenance or other reasons and the stop valves serving the devices actually in use are locked open or the stop valves are interlocked so that at least one of the duplicate devices is always in use.

6.6.3.8.1.1 To determine the total required capacity of the relief devices, which shall be regarded as being the sum of the individual capacities of the several devices, the following formulae This formula applies only to non refrigerated liquefied gases which have critical temperatures well above the temperature at the accumulating condition.

Other openings, except for openings leading to venting or pressure relief devices, shall be equipped with either a stop valve or another suitable means of closure located as close to the shell as reasonably practicable.

And we still use them commonly, because they're very robust and relatively simple devices.

You know, had efferent, afferent, and haptic response.

6.6.4.5.3 Each filling and discharge opening in portable tanks used for the transport of non flammable refrigerated liquefied gases shall be fitted with at least two mutually independent shut off devices in series, the first being a stop valve situated as close as reasonably practicable to the jacket, the second a blank flange or equivalent device.

No stop valve shall be installed between the shell and the pressure relief devices except when duplicate devices are provided for maintenance or other reasons and the stop valves serving the devices actually in use are locked open or the stop valves are interlocked so that at least one of the duplicate devices is always operable and capable of meeting the requirements of 6.6.3.8.

4.2.1.13.5 Portable tanks shall be fitted with temperature sensing devices.

You should have shown him the device.

And not only integrate a photo detector here, but maybe use the camera inside.

8. A nuclear explosive device means any device capable of bringing about a nuclear chain reaction of explosive fission, for example, a nuclear weapon or a nuclear experimental device.

6.6.3.5.2 All openings with a diameter of more than 1.5 mm in shells of portable tanks, except openings for pressure relief devices, inspection openings and closed bleed holes, shall be fitted with at least three mutually independent shut off devices in series, the first being an internal stop valve, excess flow valve or equivalent device, the second being an external stop valve and the third being a blank flange or equivalent device.

6.6.2.12.2.1 To determine the total required capacity of the relief devices, which shall be regarded as being the sum of the individual capacities of all the contributing devices, the following formula shall be used

This device shall also be possible to operate by remote control.

6.6.3.5.3 For filling and discharge openings the first shut off device shall be an internal stop valve and the second shall be a stop valve placed in an accessible position on each discharge and filling pipe.

6.6.4.5.2 Each filling and discharge opening in portable tanks used for the transport of flammable refrigerated liquefied gases shall be fitted with at least three mutually independent shut off devices in series, the first being a stop valve situated as close as reasonably practicable to the jacket, the second being a stop valve and the third being a blank flange or equivalent device.

And all of these are the same principles that apply to the saddle shaped spring in stomatopods.

6.6.4.6.1 Every shell shall be provided with not less than two independent spring loaded pressure relief devices.

6.6.2.8.4 Every portable tank with a capacity less than 1,900 litres shall be fitted with a pressure relief device which may be a frangible disc when this disc complies with the requirements of 6.6.2.11.1.

It is designed to provide a solid containment for the remnants of the reactor.

This device shall be approved by the competent authority.

All pressure relief device inlets shall under maximum filling conditions be situated in the vapour space of the shell and the devices shall be so arranged as to ensure the escaping vapour is discharged unrestrictedly.

All pressure relief device inlets shall under maximum filling conditions be situated in the vapour space of the shell and the devices shall be so arranged as to ensure that the escaping vapour is discharged unrestrictedly.

6.6.2.6.2 Bottom discharge outlets for portable tanks carrying certain solid, crystallizable or highly viscous substances shall be equipped with not less than two serially fitted and mutually independent shut off devices.

Self neutralization mechanism means an incorporated automatically functioning mechanism which renders inoperable the munition into which it is incorporated.

When no spring loaded pressure relief device is used, the frangible disc shall be set to rupture at a nominal pressure equal to the test pressure.

6.6.2.7.1 All portable tanks shall be fitted with at least one pressure relief device.

6.6.3.7.1 Portable tanks shall be provided with one or more spring loaded pressure relief devices.

6.6.2.15 Siting of pressure relief devices

6.6.3.11 Siting of pressure relief devices

6.6.4.10 Siting of pressure relief devices

Self destruction mechanism means an incorporated or externally attached automatically functioning mechanism which secures the destruction of the munition into which it is incorporated or to which it is attached.

7.1.1.6 Transport units shall be loaded so that incompatible dangerous or other goods are segregated in accordance with this Chapter.

Where appropriate the transport unit shall be fitted with devices to facilitate securing and handling of the dangerous goods.

6.6.2.14.1 Connections to pressure relief devices shall be of sufficient size to enable the required discharge to pass unrestricted to the safety device.

6.6.3.10.1 Connections to pressure relief devices shall be of sufficient size to enable the required discharge to pass unrestricted to the safety device.

6.6.4.9.1 Connections to pressure relief devices shall be of sufficient size to enable the required discharge to pass unrestricted to the safety device.

People who need a voice should know that most computers already come with built in speaking systems.

The three underground nuclear tests carried out at 1545 hours on 11 May were with three different devices a fission device, a low yield sub kiloton device and a thermonuclear device.