View Full Version : Hcrc 270

24-04-2006, 07:12 AM
What is this HCRC 270?:confused:

24-04-2006, 11:02 PM
What is HCRC ??

270 is propane if memory serves.

US Iceman
25-04-2006, 12:39 AM
R-290 is propane

R-1270 is propylene

I have never heard of HCRC 270.:confused:

25-04-2006, 02:45 AM

found this:

Now, just to add one more bit of info: each pure refrigerant can be
called either by its R-# (R-12), or by an appropriate prefix (CFC-12).
Thus, HFC-134a=R-134a, HCFC-141b=R-141b, and HC-270=R-270. Then, there
are also the chemical names. For instance, R-270 is known as propane.
The prefixes are an easy way to determine whether a refrigerant is an
ozone-depleter or not. If it's a CFC or HCFC, it is. If it's an HFC or
an HC, it's not. I'm not positive that HC is a standard prefix, but the
others are.

All of this, plus the safety classifications, is explained in Standard 34.


it seems that Brian_UK was right about propane :)

US Iceman, maybe you can find something more about Standard 34 ;)

Best regards


US Iceman
25-04-2006, 04:54 AM
HC-270=R-270...For instance, R-270 is known as propane.

Propane is only known as R-290, not 270. I'm not sure where this information comes from but I believe it is in error.

I did find one source that may explain the confusion:

Note: the columns in the refrigerant description are not labeled correctly, so you have to watch the comparison data closely.

R-270 is a propane derivative... cyclopropane

Hope that clears it up.;)

Some other info for further reading...




ASHRAE Standard 34 deals with refrigerant safety classifications and refrigerant purity I believe.


Something that may be of interest: