Use properties in a table

[Roger Mason <rmason@mun.ca>]

Hello,

I want to be able to set properties like this:

* Farms 5 -
:PROPERTIES:
:constants: kmax=7.3 gkmax=15.678 comment=alphaQuartz
:END:

then use them in a table like this:

|   | r5 | 1x1x1_24116_7220 | Fleur.sc_i0_w3  | 1.8400000000 | 14.5670000000 | alphaQuartz |
|   | r6 | 1x1x1_24116_7223 | Fleur.sc_i0_w3  | 1.8400000000 | 14.5670000000 | alphaQuartz |
#+TBLFM: $5=$kmax::$6=$gkmax::$7=$comment

I know I can do that with #+constants, but is there a syntax to use
properties in a table?  The purpose would be to have settings that are
private to a heading.

Thanks,
Roger