NCC 2019 Volume One Amendment 1
Schedule 2 Abbreviations and symbols

Schedule 2 Abbreviations and symbols

Schedule 2 Abbreviations and symbols

Abbreviations and symbols used in the NCC include:


ABCB Australian Building Codes Board
AC Alternating Current
ACP Aluminium Composite Panel
AS Australian Standard
ASET Available Safe EgressTime
ASTM American Society for Testing and Materials
BCA Building Code of Australia
BE Fire blocks evacuation route
CCT Correlated ColourTemperature
CF Challenging fire
CHF Critical Heat Flux
CRF Critical Radiant Flux
CRI Colour Rendering Index
CS Fire starts in a concealed space
CSHGC Constant for solar heat gain
CSIRO Commonwealth Scientific and Industrial Research Organisation
CU Constant for conductance
DC Direct Current
FED Fractional Effective Dose
FI Fire brigade intervention
FRL Fire Resistance Level
GRP Glass fibre reinforced polyester
HRR Heat Release Rate
HS Horizontal fire spread
IS Rapid fire spread involving internal surface linings
ISO International Organisation for Standardisation
LED Light-Emitting Diode
MEPS Minimum Energy Performance Standards
NABERS National Australian Built Environment Rating System
NATA National Association of Testing Authorities
NatHERS Nationwide House Energy Rating Scheme
NCC National Construction Code
PBDB Performance-based design brief
PCA Plumbing Code of Australia
PMV Predicted Mean Vote
ppm Parts per million
PVC Polyvinyl chloride
RC Robustness check
RSET Required Safe EgressTime
Rw Weighted sound reduction index
SF Smouldering fire
SHGC Solar Heat Gain Coefficient
SS Structural stability and other property
STC Sound Transmission Class
UF Unexpected catastrophic failure
UPVC Unplasticised polyvinyl chloride
UT Fire in normally unoccupied room threatening occupants of other rooms
U-Value Thermal transmittance
VS Vertical fire spread involving external cladding or external openings


° degree(s)
°C degree(s) Celsius
°CDB degree(s) Celsius Dry Bulb
°CWB degree(s) Celsius Wet Bulb
-e/MJ equivalent per megajoule(s)
μm micrometre
dB(A) decibels “A” scale weighting network
J Joule(s)
J/kg.K Joules per kilogram degree Kelvin
J/s.m2 Joules per second square metre
K Kelvin(s)
kg kilogram(s)
kg/m kilogram(s) per metre
kg/m2 kilogram(s) per square metre
kg/m3 kilogram(s) per cubic metre
kJ/m2.hour kilojoules per square metre hour
km kilometre
kPa kilopascal(s)
kW/m2 kilowatt(s) per square metre
kWheating kilowatt(s) of heating
kWr kilowatt(s) of refrigeration
L litre(s)
L/min litre(s) per minute
L/s litre(s) per second
L/s.m2 litre(s) per second square metre
Lumens/W Lumens per Watt
lx lux
m metre(s)
m/s metre(s) per second
m2 square metre(s)
m2.K/W square metre Kelvin(s) per Watt
m3 cubic metre(s)
m3/hour cubic metre(s) per hour
m3/s cubic metre(s) per second
mcd/m2 millicandelas per square metre
min minute(s)
MJ/hour Megajoules per hour
MJ/m2.annum megajoule(s) per square metre per annum
mm millimetre(s)
mm2 square millimetre(s)
MW megawatt(s)
N newton(s)
Pa pascal(s)
Pa/m pascal(s) per metre
s second(s)
V Volt(s)
W Watt(s)
Winput power Watts of input power
Wr/Winput power Watts of thermal refrigeration per watt of input power
W/kWrej Watts per kilowatt of heat rejected
W/m.K Watts per metre degree Kelvin
W/m2 Watts per square metre
°south degree south
% percent
> greater than
< less than
less than or equal to
equal to or more than