Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

[degF] 

degree Fahrenheit 

°F 

temperature 

no

[degR] 

degree Rankine 

°R 

temperature 

no

[degRe] 

degree Réaumur 

°Ré 

temperature 

no

cal_[15] 

calorie at 15 °C 

cal15°C 

energy 

yes

cal_[20] 

calorie at 20 °C 

cal20°C 

energy 

yes

cal_m 

mean calorie 

calm 

energy 

yes

cal_IT 

international table calorie 

calIT 

energy 

yes

cal_th 

thermochemical calorie 

calth 

energy 

yes

cal 

calorie 

cal 

energy 

yes

[Cal] 

nutrition label Calories 

Cal 

energy 

no

[Btu_39] 

British thermal unit at 39 °F 

Btu39°F 

energy 

no

[Btu_59] 

British thermal unit at 59 °F 

Btu59°F 

energy 

no

[Btu_60] 

British thermal unit at 60 °F 

Btu60°F 

energy 

no

[Btu_m] 

mean British thermal unit 

Btum 

energy 

no

[Btu_IT] 

international table British thermal unit 

BtuIT 

energy 

no

[Btu_th] 

thermochemical British thermal unit 

Btuth 

energy 

no

[BTU] 

British thermal unit 

btu 

energy 

no

[HP] 

horsepower 

power 

no

TEX 

tex 

tex 

linear mass density (of textile thread) 

yes

[DEN] 

Denier 

den 

linear mass density (of textile thread) 

no

Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

m[H2O] 

meter of water column 

m H2O 

pressure 

yes

m[Hg] 

meter of mercury column 

m Hg 

pressure 

yes

[in_i'H2O] 

inch of water column 

in H2O 

pressure 

no

[in_i'Hg] 

inch of mercury column 

in Hg 

pressure 

no

[PRU] 

peripheral vascular resistance unit 

P.R.U. 

fluid resistance 

no

[wood'U] 

Wood unit 

Wood U. 

fluid resistance 

no

[diop] 

diopter 

dpt 

refraction of a lens 

no

[p'diop] 

prism diopter 

PD 

refraction of a prism 

no

%[slope] 

percent of slope 

% 

slope 

no

[mesh_i] 

mesh 

lineic number 

no

[Ch] 

Charrière, french 

Ch 

gauge of catheters 

no

[drp] 

drop 

drp 

volume 

no

[hnsf'U] 

Hounsfield unit 

HF 

x-ray attenuation 

no

[MET] 

metabolic equivalent 

MET 

metabolic cost of physical activity 

no

[hp'_X] 

homeopathic potency of decimal series (retired) 

X 

homeopathic potency (retired) 

no

[hp'_C] 

homeopathic potency of centesimal series (retired) 

C 

homeopathic potency (retired) 

no

[hp'_M] 

homeopathic potency of millesimal series (retired) 

M 

homeopathic potency (retired) 

no

[hp'_Q] 

homeopathic potency of quintamillesimal series (retired) 

Q 

homeopathic potency (retired) 

no

[hp_X] 

homeopathic potency of decimal hahnemannian series 

X 

homeopathic potency (Hahnemann) 

no

[hp_C] 

homeopathic potency of centesimal hahnemannian series 

C 

homeopathic potency (Hahnemann) 

no

[hp_M] 

homeopathic potency of millesimal hahnemannian series 

M 

homeopathic potency (Hahnemann) 

no

[hp_Q] 

homeopathic potency of quintamillesimal hahnemannian series 

Q 

homeopathic potency (Hahnemann) 

no

[kp_X] 

homeopathic potency of decimal korsakovian series 

X 

homeopathic potency (Korsakov) 

no

[kp_C] 

homeopathic potency of centesimal korsakovian series 

C 

homeopathic potency (Korsakov) 

no

[kp_M] 

homeopathic potency of millesimal korsakovian series 

M 

homeopathic potency (Korsakov) 

no

[kp_Q] 

homeopathic potency of quintamillesimal korsakovian series 

Q 

homeopathic potency (Korsakov) 

no

Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

eq 

equivalents 

eq 

amount of substance 

yes

osm 

osmole 

osm 

amount of substance (dissolved particles) 

yes

[pH] 

pH 

pH 

acidity 

no

g% 

gram percent 

g% 

mass concentration 

yes

[S] 

Svedberg unit 

S 

sedimentation coefficient 

no

[HPF] 

high power field 

HPF 

view area in microscope 

no

[LPF] 

low power field 

LPF 

view area in microscope 

no

kat 

katal 

kat 

catalytic activity 

yes

U 

Unit 

U 

catalytic activity 

yes

[iU] 

international unit 

IU 

arbitrary 

yes

[IU] 

international unit 

i.U. 

arbitrary 

yes

[arb'U] 

arbitary unit 

arb. U 

arbitrary 

no

[USP'U] 

United States Pharmacopeia unit 

U.S.P. 

arbitrary 

no

[GPL'U] 

GPL unit 

biologic activity of anticardiolipin IgG 

no

[MPL'U] 

MPL unit 

biologic activity of anticardiolipin IgM 

no

[APL'U] 

APL unit 

biologic activity of anticardiolipin IgA 

no

[beth'U] 

Bethesda unit 

biologic activity of factor VIII inhibitor 

no

[anti'Xa'U] 

anti factor Xa unit 

biologic activity of factor Xa inhibitor (heparin) 

no

[todd'U] 

Todd unit 

biologic activity antistreptolysin O 

no

[dye'U] 

Dye unit 

biologic activity of amylase 

no

[smgy'U] 

Somogyi unit 

biologic activity of amylase 

no

[bdsk'U] 

Bodansky unit 

biologic activity of phosphatase 

no

[ka'U] 

King-Armstrong unit 

biologic activity of phosphatase 

no

[knk'U] 

Kunkel unit 

arbitrary biologic activity 

no

[mclg'U] 

Mac Lagan unit 

arbitrary biologic activity 

no

[tb'U] 

tuberculin unit 

biologic activity of tuberculin 

no

[CCID_50] 

50% cell culture infectious dose 

CCID50 

biologic activity (infectivity) of an infectious agent preparation 

no

[TCID_50] 

50% tissue culture infectious dose 

TCID50 

biologic activity (infectivity) of an infectious agent preparation 

no

[EID_50] 

50% embryo infectious dose 

EID50 

biologic activity (infectivity) of an infectious agent preparation 

no

[PFU] 

plaque forming units 

PFU 

amount of an infectious agent 

no

[FFU] 

focus forming units 

FFU 

amount of an infectious agent 

no

[CFU] 

colony forming units 

CFU 

amount of a proliferating organism 

no

[IR] 

index of reactivity 

IR 

amount of an allergen calibrated through in-vivo testing using the Stallergenes® method. 

no

[BAU] 

bioequivalent allergen unit 

BAU 

amount of an allergen calibrated through in-vivo testing based on the ID50EAL method of (intradermal dilution for 50mm sum of erythema diameters 

no

[AU] 

allergen unit 

AU 

procedure defined amount of an allergen using some reference standard 

no

[Amb'a'1'U] 

allergen unit for Ambrosia artemisiifolia 

Amb a 1 U 

procedure defined amount of the major allergen of ragweed. 

no

[PNU] 

protein nitrogen unit 

PNU 

procedure defined amount of a protein substance 

no

[Lf] 

Limit of flocculation 

Lf 

procedure defined amount of an antigen substance 

no

[D'ag'U] 

D-antigen unit 

procedure defined amount of a poliomyelitis d-antigen substance 

no

[FEU] 

fibrinogen equivalent unit 

amount of fibrinogen broken down into the measured d-dimers 

no

[ELU] 

ELISA unit 

arbitrary ELISA unit 

no

[EU] 

Ehrlich unit 

Ehrlich unit 

no

Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

Np 

neper 

Np 

level 

yes

B 

bel 

B 

level 

yes

B[SPL] 

bel sound pressure 

B(SPL) 

pressure level 

yes

B[V] 

bel volt 

B(V) 

electric potential level 

yes

B[mV] 

bel millivolt 

B(mV) 

electric potential level 

yes

B[uV] 

bel microvolt 

B(μV) 

electric potential level 

yes

B[10.nV] 

bel 10 nanovolt 

B(10 nV) 

electric potential level 

yes

B[W] 

bel watt 

B(W) 

power level 

yes

B[kW] 

bel kilowatt 

B(kW) 

power level 

yes

Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

st 

stere 

st 

volume 

yes

Ao 

Ångström 

Å 

length 

no

b 

barn 

b 

action area 

no

att 

technical atmosphere 

at 

pressure 

no

mho 

mho 

mho 

electric conductance 

yes

[psi] 

pound per sqare inch 

psi 

pressure 

no

circ 

circle 

circ 

plane angle 

no

sph 

spere 

sph 

solid angle 

no

[car_m] 

metric carat 

ctm 

mass 

no

[car_Au] 

carat of gold alloys 

ctAu 

mass fraction 

no

[smoot] 

Smoot 

length 

no

[m/s2/Hz^(1/2)] 

meter per square seconds per square root of hertz 

amplitude spectral density 

no

Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

bit_s 

bit 

bits 

amount of information 

no

bit 

bit 

bit 

amount of information 

yes

By 

byte 

B 

amount of information 

yes

Bd 

baud 

Bd 

signal transmission rate 

yes

Symbol (c/s)

Display Name

Print Symbol

Kind of Quantity

Metric

{tot} 

particles total count 

tot. 

number 

no

{tbl} 

tablets 

tbl. 

number 

no

{rbc} 

red blood cell count 

R.B.C. 

number 

no

g.m/{H.B.} 

gram meter per heartbeat 

g· m/H.B. 

proportional to ventricular stroke work 

no

gf.m/{H.B.} 

gram-force meter per heartbeat 

gf· m/H.B. 

ventricular stroke work 

no

kg{wet'tis} 

kilogram of wet tissue 

kg(wet tissue) 

mass 

no

mg{creat} 

milligram of creatinine 

mg(creat.) 

mass 

no