A Conversation for Ask h2g2

NZ mining disaster

Post 21

Big Bad Johnny P

According to what I've heard and read in the past, the thing about methane is that it is only explosive within a certain range of concentrations, too little and it won't explode, too much and it won't explode either (not sure how wide the band is).

One of the problems this gives is that if you are above the "explosive" concentration, then to get back to low/no methane you have to go through that "explosive" band again.

I only mention this because a lot is being said about gas build ups and explosions etc. The thing is we don't know what happened here and to what extent it was preventable. Hopefully we will, and as Ivan says, these things only become preventable because people take the time and trouble to investigate those disasters that do happen and put measures in place to TRY to prevent them happening again.


NZ mining disaster

Post 22

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

I hope as well as the police, coroner etc that we get an independent enquiry.


NZ mining disaster

Post 23

Galaxy Babe - eclectic editor

smiley - rose


NZ mining disaster

Post 24

Ivan the Terribly Average

Kea, I think I heard someone say earlier that there was to be a Royal Commission as well. Is that the case?


NZ mining disaster

Post 25

Rockhound

The lower and upper explosive limits for methane are 5% - 15%


NZ mining disaster

Post 26

kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website

I haven't heard the news today Ivan, but having a look now it does seem that's what's happening. Which is good.


NZ mining disaster

Post 27

Ivan the Terribly Average

It's very good. While the labour regulators will have their enquiry and the Coroner will have an inquest, only a Royal Commission can look at the whole situation.


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