Define STPD, ATPD, BTPS and list the values.

I'm in college and our books haven't came in from the bookstore. I don't understand how the prof. is still making us do this HW. my younger brother told me I should try to get help from this site since it helped him.

This is all I could come up with from internet searches. I couldn't find any of the values unless I'm not searching correctly.

STPD= Standard temperature pressure dry

ATPD= ? Temperature Pressure ?
Is it ambient and dry? I couldn't find it.

BTPS= body temp pressure saturated

2 answers

http://www.spirxpert.com/technical7.htm
Judging by this website,
http://www.spirxpert.com/technical7.htm
I would guess that you have correctly identified the abbreviations.