Abbreviations
Whilst CalQlata always tries to use generally accepted terms for abbreviations, to avoid confusion or misunderstanding, listed below is a description of each abbreviation used on this website.
If you do not find the abbreviation you are looking for on this page (e.g. 'V' for voltage), you should try the Symbols page
Abbreviation | Complete Term |
---|---|
ABMA |
|
ABS |
acrylonitrile butadiene styrene |
ABS |
|
AC |
|
ALS |
|
Acos |
arccosine |
Acosh |
hyperbolic arccosine |
AFBMA |
|
AISI |
|
ANSI |
|
API |
|
Asin |
arcsine |
Asinh |
hyperbolic arcsine |
ASME |
|
ASTM |
|
Atan |
arctangent |
Atanh |
hyperbolic arctangent |
BHN |
Brinell hardness number |
BS |
British Standard |
BSI |
|
CAF |
compressed asbestos fibre |
CEV |
|
CGPM |
Conférence Générale des Poids et Mesures |
CMS |
comfortable minimum separation (between moving vehicles) |
Cos |
cosine |
Cosec & Csc |
cosecant |
Cosh |
hyperbolic cosine |
Cotan & Ctn |
cotangent |
DAF |
|
DC |
|
DIN |
|
DnV |
|
ETFE |
ethylene tetra-fluoro-ethylene |
FEP |
fluorinated ethylene propylene |
FLS |
|
g |
|
G |
|
GiGo |
|
GMTo |
Greenwich mean time |
HMX |
high molecular weight (RDX) |
HNBR |
hydrogenated nitrile butadiene rubber |
HPHT |
high-pressure/high-temeprature |
HSSC |
hydrogen stress corrosion cracking |
ID |
inside diameter |
IR |
|
ISO |
|
IWRC |
|
LH |
left-hand |
LHS |
left-hand side |
log |
|
m/c |
machine |
NACA |
The National Advisory Committee for Aeronautics (this body was incorporated into NASA in 1958) |
NASA |
|
NBR |
nitrile butadiene rubber |
NFPA |
|
OD |
outside diameter |
OTR |
off-the-road |
PE |
|
PA |
polyamide {nylon} |
PC |
polycarbonate |
PCD |
pitch circle diameter |
PEEL |
polyester elastomer |
PE |
polyethylene |
PEI |
polyester imide |
PETN |
pentaerythrite tetranitrate |
PFA |
per-fluoro-alkoxy |
pH |
|
PPE |
polyphenylene |
PP |
polypropylene |
PTFE |
poly-tetra-fluoro-ethylene |
PUR |
polyurethane |
RAM |
|
RAO |
|
RDX |
research department explosive |
RH |
right-hand |
RHS |
|
RHS |
right-hand side |
RTJ |
ring type joint (flange gaskets) |
SAE |
|
SCC |
stress corrosion cracking |
Sec |
secant |
SF |
|
SG |
|
SHS |
|
SI |
system international (metric) |
Sin |
sine |
Sinh |
hyperbolic sine |
SLS |
|
SMYS |
|
S-N |
stress-number (fatigue curve) |
Tan |
tangent |
Tanh |
hyperbolic tangent |
TETRYL |
trinitrophenylmethyinitramine |
TFE |
tetra-fluoro-ethylene |
THS |
|
TNT |
trinitrotoluene |
TPO |
thermoplastic olefins |
Trig |
|
UhmwPe |
ultra-high molecular weight polyethylene |
ULS |
|
UNS |
unified numbering system |
USGS |
|
UTM |
universal transverse mercator |
UTS |
|
UV |
|
YS |
yield strength (stress) |