Mailing List Archive

Mailing List: techdiver

Message Display

Hmmm, my own take on this is that atmospheres should come first, thus:

UNITS OF ATMOSPHERIC PRESSURE

1 Atmosphere (atm) OR 1 Atmosphere absolute (ata)
          = 14.696 pounds per square inch (psi)
          = 33.044 ft of sea water (fsw)
          = 33.932 ft of fresh water (ffw)
          = 10.07 metres (m) of sea water (msw)
          = 10.342 m of fresh water (mfw)
          = 29.921 inches of mercury (in Hg)
          = 760 millimetres of mercury (mm Hg)
          = 760 Torr
          = 1.033 kilograms per centimetre squared (kg/cm2)
          = 101.3 Kilopascals (kPa)
          = 10.13 Hectopascals (hPa)
          = 1.013 Bar
          = 0.1013 Megapascals (MPa)

and to top it off:

METRIC PRE/SUFFIXES (and what they mean)

giga      (g) means thousand million
Mega   (M) means million
kilo        (k) means thousand
hecto   (h) means hundred
deka    (da) means ten

deci     (d) means one tenth
centi    (c) means one hundredth
milli      (m) means one thousandth
micro   (*) means one millionth
nano    (n) means one thousand millionth

* curiously there is no abbreviation for micro 

VELOCITY

1 mile per hour (mph) = 1.61 kilometres per hour (km/h)
1 knot (kn)                  = 1.85 km/h   = 1.149 mph
1 km/h                        = 0.621 mph  = 0.541 kn

MISCELLANY

1 pound (lb) = 0.453 kilograms (kg)
1 kg = 2lbs 3 ounces (oz) = 2.2lbs = 1L* of (pure) fresh water
1 inch (in) = 2.54 centimetres (cm) = 25.4mm
3 feet (ft) = 1 yard = 0.9144 metres (m)
1m = 3.2808 ft = 1.0936 yards

*I have shown the abbreviation of litre as L. This is not correct but
the correct abbreviation (lower case l) is not clear in ASCII.

Christian

p farina wrote:
> 
> 1 Bar = 14.504psi
> Mega (M) is X10^6 or X1000000
> Kilo (k)is X10^3  or X1000
> Mili  (m) is X10^-3 or X0.001
> 1 inch of Hg = .49116 psi (most weather stations in
> the US give barometer reading in inches of Mercury)
> 
> Sea level atmoshpheric conditionson a standard day
> is 14.69595psi or 29.982 inHg.
(snip)
--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]