ISO 10439-1:2015
[Current]
Petroleum, petrochemical and natural gas industries — Axial and centrifugal compressors and expander-compressors — Part 1: General requirements
...Note 2 to entry: Due to the lack of uniformity on standard conditions, standard volume flow is not a preferred unit
and, if specified, should be given in conjunction with actual mass flow to avoid confusion...
...Formula (7) or (8) for each stage or impeller, kN/mm
(klbf/in)
R
out
combined mechanical and electrical runout, m (mil)
ave
average gas density across the rotor, kg/m
3
(lb/ft
3
)
S number of stages or impellers
S
an
actual separation for n
th
cri...
...1 General requirements relating to performance are given in 4...
