13.2 List of abbreviations
Abbreviation
Explanation
BS
British Standard
bar
Unit of measurement of pressure [bar]
All pressure data expressed in [bar/psi] is assumed to be gauge pressure [barg/psig]
unless explicitly specified otherwise.
approx.
approximately
°C
Unit of measurement of temperature [degree Celsius]
dm3n
Unit of measurement of volume [cubic decimetre] standard volume (standard litres)
DN
DIN nominal width
DIN
German standard issued by DIN (Deutsches Institut für Normung e.V., German In-
stitute for Standardization)
EN
European Standard
EPDM
Material designation
Brief designation according to DIN/ISO 1629: Ethylene-propylene-diene- rubber
°F
Unit of measurement of temperature [degree Fahrenheit]
FKM
Material designation, short designation according to DIN/ISO 1629: Fluorine rubber
h
Unit of measurement of time [hour]
HNBR
Material designation
short designation according to DIN/ISO 1629: Hydrated nitrile butadiene rubber
IP
Protection class
ISO
International Standard of the International Organization for Standardization
kg
Unit of measurement of weight [kilogram]
kN
Unit of measurement of force [kilonewton]
Kv value
Flow coefficient [m³/s] 1 KV = 0.86 x Cv
l
Unit of measurement of volume [litre]
max.
maximum
mm
Unit of measurement of length [millimetre]
µm
Unit of measurement of length [micrometre]
M
Metric
13.2 List of abbreviations - 125 / 128
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