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Technical Information & Conversion Tables

Related Topics

Electro Magnetic Field EMF (Gauss)	Temperature
Flowrate (air or water)	Volume
Metric Prefixes	VOC (Volatile Organic Compounds)
Pressure & Vacuum	Wire Gauge Sizes
Refractometery

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EMF (Gauss)

Power lines over heads and in workplaces, high voltage equipment, transformers, panels and switch-gear that you work around, all continuously emit Extremely Low Frequency (ELF) radiation. Recently, the Environmental Protection Agency has linked ELF radiation to childhood leukemia, lymphoma and nervous system cancer. Other studies have shown increased miscarriage rates in pregnant women exposed to ELF

Measurements can be made in Tesla, Gauss, Amps/m or Oersted.

(1 mT = 10 Gauss = 0.796 kA/m)

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Gauss Meter

Flowrate
cc/min cfm (cu. ft./min) cfmm (cu. ft./min)	x 1 x 28.31 x 1.699	mL/min L/min cu. m/hr	---> See our related products: Water Flow Meter
cfh (cu. ft./hr) cfh (cu. ft./hr) GPH GPH	x 472 x 0.125 x 63.1 x 0.134	mL/min GPM mL/min cfh
GPM GPM oz/min	x 0.227 x 3.785 x 29.57	cu. m/hr L/min mL/min
Conversion from Velocity to Volume GPM = ft./sec x 2.448 x ID x ID (inches), where ID = Internal Diameter
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Metric Prefixes
Prefix	Abbreviation	Meaning	---> See our related products:
tera- giga- mega-	T G M	x 10¹²x 10⁹x 10⁶
kilo- deci- centi- milli-	k d c m	x 10³x 10^-1x 10^-2x 10^-3
micro- nano- pico-	μ n p	x 10^-6x 10^-9x 10^-12
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Pressure/Vacuum
atm atm atm	33.9 760 1033.2	ftm H2O mm Hg g/cu. cm	---> See our related products: Pressure & Vacuum Meter
atm atm atm	14.70 1.013 101.3	psi bar kPa
bar bar bar	14.5 0.9869 100	psi atm kPa
ft H2O kPA	0.4335 0.01	psi dyne/cu. cm
kPA kPA psi	0.1450 7.5 0.0703	psi mm Hg kg/cu. cm
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Refractometery

Refractometers are instruments used to measure substances dissolved in water and certain oils. The refractometer works using the principle of light refraction through liquids. As light passes from air into a liquid it slows down. This phenomenon is what gives a "bent" look to objects that are partially submerged in water. To put it simply, the more dissolved solids water contains, the slower light travels through it, and the more pronounced the "bending" effect on light. Refractometers use this principle to determine the amount of dissolved solids in liquids by passing light through a sample and showing the refracted angle on a scale. The scale most commonly used is referred to as the Brix scale. The Brix scale is defined as: the number of grams of pure cane sugar dissolved in 100 grams of pure water (grams sugar/100 grams H20). Other scales have been developed to measure salt, serum proteins (albumen) and urine specific gravity.

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Refractometer

Temperature

℉ = (1.8 x ℃) + 32

℃ = (℉ - 32) x 0.555

°Kelvin = ℃ + 273.2

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Temperature & Humidity Measurement

Volume
cubic cm (cc) oz (fluid) cubic ft (cu. ft.) cubic ft (cu. ft)	1 29.57 7.48 0.0283	mL mL gal cu. m	---> See our related products:
gal gal gal cubic meters	128 3.785 0.8333 1000	oz (fluid) liters imp gal liters
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Wire Gauge Sizes
AWG	Diameter (mm)	---> See our related products:
6 8 10	4.11 3.26 2.58
12 14 16	2.05 1.62 1.29
18 20 22	1.02 0.81 0.64
24 26 28	0.51 0.40 0.32
30 32 34	0.25 0.20 0.15
36 38 40	0.12 0.10 0.07
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VOC (Volatile Organic Compounds)

Photo Ionization Detector (PID) are monitors which detect toxic or hazardous vapors in the parts per million range (ppm). They are used to measure low concentrations of ionizable chemicals like Volatile Organic Compounds (VOCs) and other toxic gases.

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VOC Monitor