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.

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.

It's molecular clockwork.

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.

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.

And when you turn off the gate, there's no current flowing through the device.

(e) the rated flow capacity of the device in standard cubic meters of air per second (m3 s).

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.

D. Launchers and the ground segment 39 41 8

D. Launchers and the ground segment

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.

Protective devices which deflect the flow of vapour are permissible provided the required relief device capacity is not reduced.

There shall be no obstruction in an opening leading to a vent or pressure relief device which might restrict or cut off the flow from the shell to that device.

6.6.2.13.2 The rated flow capacity marked on the pressure relief devices shall be determined according to ISO 4126 1 1996.

6.6.3.9.2 The rated flow capacity marked on the pressure relief devices shall be determined according to ISO 4126 1 1996.

6.6.4.8.2 The rated flow capacity marked on the pressure relief devices shall be determined according to ISO 4126 1 1996.

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

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

The collected data will be used to improve the experimental set up and to assist the development of algorithms for the estimation of the meteoroid influx.

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.

And I like to make devices that play with the ways that we relate and communicate.

1 See for example CGA Publications S 1.2 2003 Pressure Relief Device Standards Part 2 Cargo and Portable Tanks for Compressed Gases and S 1.1 2003 Pressure Relief Device Standards Part 1 Cylinders for Compressed Gases .

And I had finally got around to doing some draft stripping, installing insulation around the windows and doors to keep out the drafts.

They cover large areas in the south and the east of the country.

6.6.2.5.2 All openings in the shell, intended for filling or discharging the portable tank shall be fitted with a manually operated stop valve located as close to the shell as reasonably practicable.

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.

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

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.

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

(b) Uses or threatens to use any nuclear installation, nuclear explosive or radiation dissemination devices and components thereof or objects of which they are components, including their destruction or the threat of their destruction, as well as the manufacture of home made nuclear devices

Remote closure devices and self closing stop valves shall be operated to demonstrate proper operation

6.6.2.12.1 The spring loaded pressure relief device required by 6.6.2.8.1 shall have a minimum cross sectional flow area equivalent to an orifice of 31.75 mm diameter.

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

Mobile sets

All newly launched United States upper stages and spacecraft have been modified to eliminate operational debris, to retain captive separation devices, to keep captive deployment and restraint devices and to disable pyrotechnic devices.

Military equipment in the form of night vision devices was also part of a shipment of arms to a warlord located in Mogadishu.

DEBIE (Debris In Orbit Evaluator) is one such sensor.

By properly orienting their spacecraft, astronauts may be able to use their vehicles as shields against the majority of orbital debris or direct meteroid streams.

By properly orienting their spacecraft, astronauts may be able to use their vehicles as shields against the majority of orbital debris or direct meteoroid streams.

The designer will attempt to ensure that the electrically initiated devices (EID) are adequately screened to prevent the inadvertent exposure of the EID that electromagnetic radiation EMR.

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.

s8(2) A person who acquires a nuclear explosive device is guilty of an offence against this subsection.

A venting device shall be fitted if dangerous overpressure may develop due to normal decomposition of substances.