units 

This module consists of a Pint unit registry, which helps to process and apply units to data.

Module containing global unit registry. The Pint package supports arithmetic of physical quantities, which are combinations of numerical values and units of measurement. The units of a quantity come from Pint’s unit registry. This module contains a unit registry, named u, based on Pint’s unit registry. It also defines a few additional units. Frequently Used Units and Constants in u

Prefixes for Metric Units 

pico- = 1e-12 = p-
nano- = 1e-9 = n-
micro- = 1e-6 = u- = µ-
milli- = 1e-3 = m-
centi- = 1e-2 = c-
deci- = 1e-1 = d-
deca- = 1e+1 = da-
hecto- = 1e2 = h-
kilo- = 1e3 = k-
mega- = 1e6 = M-
giga- = 1e9 = G-
tera- = 1e12 = T-

Units of Length 

u.meter = u.metre = u.m
u.inch
u.foot = u.ft
u.yard = u.yd
u.mile = u.mi

Units of Mass 

u.gram = u.g
u.metric_ton = u.tonne = u.t
u.ounce = u.oz
u.pound = u.lb
u.ton
u.atomic_mass_unit = u.amu

Units of Time 

u.second = u.sec = u.s
u.minute = u.min
u.hour = u.hr
u.day
u.week
u.year

Units of Temperature 

u.kelvin = u.degK
u.celsius = u.degC
u.fahrenheit = u.degF

Units of Angle 

u.revolution = u.rev
u.radian = u.rad
u.degree = u.deg

Units of Force 

u.newton = u.N
u.gram_force = u.gf
u.kilogram_force = u.kgf
u.pound_force = u.lbf
u.ton_force
u.kip

Units of Frequency 

u.hertz = u.Hz
u.revolutions_per_minute = u.rpm

Units of Money 

u.dollar = u.USD
u.lempira = u.HNL

Units of Power 

u.watt = u.W
u.horsepower = u.hp

Units of Pressure 

u.pascal = u.Pa
u.bar
u.atmosphere = u.atm
u.torr
u.millimeter_Hg = u.mmHg

Units of Volume 

u.liter = u.litre = u.L
u.cubic_centimeter = u.cc
u.gallon = u.gal
u.quart = u.qt
u.pint = u.pt
u.cup
u.fluid_ounce = u.floz
u.tablespoon = u.tbsp
u.teaspoon = tsp

Other Units 

u.joule = u.J
u.mole = u.mol = u.equivalent = u.eq
u.NTU = 1.47 * (u.mg / u.L)
u.BTU = 1055.056 * u.J
u.LMH = u.liter ** 2 / (u.hour * u.meter ** 2)
- This turbidity-concentration relation applies to kaolinite clay and is obtained from Coagulation behavior of polyaluminum chloride (Wei et al., 2015).

Constants 

u.gravity
u.molar_gas_constant = u.R
u.avogadro_number
u.boltzmann_constant

pype_schema.units.set_sig_figs(n=4)[source]

Set the default number of significant figures used to print Pint, Pandas and NumPy value quantities.

Parameters:: n (int) – number of significant figures to display. Defaults to 4.