On Sat, 29 May 2021 10:45:32 +0100, T i m wrote:

Then they noticed those containers were stored close to some others
that had to be kept hot to keep the content molten and this had heated
the other containers, causing them to overheat and to heat the PVC ...

I would have expected there to be rules in place for the placement of
heated containers. There must be many products that will react badly
to elevated temperature, and lots more that may be degraded in some
way.

I think three crew died trying to deal with it all. ;-(

That's awful, and puts in perspective just how bad the fire must have
been if people had to risk their lives trying to extinguish it.