W=Reacts violently or explosively w/ water 1= Unstable at High temperature makes unstable 3=may explode at high temperature 4=will vaporize or readily burn at normal temperature
Batteries large banks of batteries for backup), oil cooled transformers and large capacitors
This is NSA bomb-shelter hardened architecture.
Also maybe big tanks of diesel fuel to run the backup generators. They are probably connected to natural gas in a urban location, but maybe they have diesel for backup in case the NG fails.
Typical MSDS for any office using Liquid Paper.
Just kidding.
Telephone switch facilities in large metropolitan areas are typically built this way, although perhaps some more intricate details would prove more than average.
First, the facade.
To meet local zoning requirements, the elevations of the proposed project frequently must match the horizontal and vertical articulation of adjacent properties. i.e. they have to blend in, not become an eyesore which could lower local property values. So the facade will typically look just like what you see here.
Secondly, Telephone switch facilities are typically considered an Essential or Class I facility. with the highest number of coefficients applied to all the structural elements in design, throughout the structure.
They must remain not only standing, but operational and occupy-able after a major seismic event. They are needed for 911 call centers to operate and all first responders to operate after a catastrophe.
With that said, I am a little surprised more penetrations didn’t arise in the root structure.
The HazMat codes, likely are due to Battery Storage Systems for UPS in large telephony systems.
Batteries large banks of batteries for backup), oil cooled transformers and large capacitors., Yes, but it doesn't look the fire department could get into this place. In this case, the W, 1, 3, 4 would tell the FD to back off.