What is pure oxygen (gas) density as a function of T or P?

I'm looking for a set of data (ideally graphed) of $\ce{O2}$ density as a function of $T$ **or** $p$ (with constant $p$ or $T$, respectively).


The best I've found is this [1948 paper](http://nvlpubs.nist.gov/nistpubs/jres/40/jresv40n6p457_A1b.pdf) which provides an empirical model but (1) it's not as recent as I'd like and (2) I want solid experimental data, not empirical fits. One can calculate ideal-gas densities by $$\frac{pM}{RT}$$ but I'm looking for real values.


A recent empirical model would also be very useful!


Something like this, which is $\rho(T)$ for air:
[![enter image description here](https://i.stack.imgur.com/O5w86.png)](https://i.stack.imgur.com/O5w86.png)




A colleague showed me a website that can render almost any thermodynamic quantity as a function of another for various substances: <http://webbook.nist.gov/chemistry/fluid/>.


Using NIST's software allowed me to get an isobar graph of $\rho (T)$ from 55K to 1000K (at 1.0atm).


[![enter image description here](https://i.stack.imgur.com/3T1vg.png)](https://i.stack.imgur.com/3T1vg.png)


And $\rho (P)$ from 0 - 800atm (at 273.15K):
[![enter image description here](https://i.stack.imgur.com/bxanJ.png)](https://i.stack.imgur.com/bxanJ.png)


It even has an HTML data-point option (and downloadable tab-delimited form). [Perfect](http://webbook.nist.gov/cgi/fluid.cgi?Action=Load&ID=C7782447&Type=IsoBar&Digits=5&P=1.0&THigh=1000&TLow=55&TInc=1&RefState=DEF&TUnit=K&PUnit=atm&DUnit=kg%2Fm3&HUnit=kJ%2Fmol&WUnit=m%2Fs&VisUnit=uPa*s&STUnit=N%2Fm)! In the case of $\ce{O2}$ it uses data from papers in the '80s and '90s (experimental and (from the software) empirical)


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