'Poison gas' test on Underground

[Chris M]

From BBC News:

Tests have been held to see how toxic gas would spread if it was used by terrorists on London's Tube.

The trial took place at St John's Wood station on the Jubilee line, which operated as normal.

Harmless sulphur hexafluoride was released and then equipment checked as the gas drifted around the building.

Full story: news.bbc.co.uk/1/hi/england/london/6492501.stm

I know it was mentioned somewhere on this forum that this would be happening, but I can't remember/find where this was.

[Colin]

Here you go Chris:
districtdave.proboards39.com/index.cgi?action=display&board=Stations&thread=1174487805&page=1

**whistles as he walks away**

[stanmorek]

This morning I saw a guy in hi-vi standing next to a tripod with some sort of monitoring equipment. This was on Warren Street Northern S/B platform.