 | UnitsID | UnitsName | UnitsType | UnitsAbbreviation |
 | 1 | percent | Dimensionless | % |
| 2 | degree | Angle | deg |
| 3 | grad | Angle | grad |
| 4 | radian | Angle | rad |
| 5 | degree north | Angle | degN |
| 6 | degree south | Angle | degS |
| 7 | degree west | Angle | degW |
| 8 | degree east | Angle | degE |
| 9 | arcminute | Angle | arcmin |
| 10 | arcsecond | Angle | arcsec |
| 11 | steradian | Angle | sr |
| 12 | acre | Area | ac |
| 13 | hectare | Area | ha |
| 14 | square centimeter | Area | cm^2 |
| 15 | square foot | Area | ft^2 |
| 16 | square kilometer | Area | km^2 |
| 17 | square meter | Area | m^2 |
| 18 | square mile | Area | mi^2 |
| 19 | hertz | Frequency | Hz |
| 20 | darcy | Permeability | D |
| 21 | british thermal unit | Energy | BTU |
| 22 | calorie | Energy | cal |
| 23 | erg | Energy | erg |
| 24 | foot pound force | Energy | lbf ft |
| 25 | joule | Energy | J |
| 26 | kilowatt hour | Energy | kW hr |
| 27 | electronvolt | Energy | eV |
| 28 | langleys per day | Energy Flux | Ly/d |
| 29 | langleys per minute | Energy Flux | Ly/min |
| 30 | langleys per second | Energy Flux | Ly/s |
| 31 | megajoules per square meter per day | Energy Flux | MJ/m^2 d |
| 32 | watts per square centimeter | Energy Flux | W/cm^2 |
| 33 | watts per square meter | Energy Flux | W/m^2 |
| 34 | acre feet per year | Flow | ac ft/yr |
| 35 | cubic feet per second | Flow | cfs |
| 36 | cubic meters per second | Flow | m^3/s |
| 37 | cubic meters per day | Flow | m^3/d |
| 38 | gallons per minute | Flow | gpm |
| 39 | liters per second | Flow | L/s |
| 40 | million gallons per day | Flow | MGD |
| 41 | dyne | Force | dyn |
| 42 | kilogram force | Force | kgf |
| 43 | newton | Force | N |
| 44 | pound force | Force | lbf |
| 45 | kilo pound force | Force | kip |
| 46 | ounce force | Force | ozf |
| 47 | centimeter | Length | cm |
| 48 | international foot | Length | ft |
| 49 | international inch | Length | in |
| 50 | international yard | Length | yd |
| 51 | kilometer | Length | km |
| 52 | meter | Length | m |
| 53 | international mile | Length | mi |
| 54 | millimeter | Length | mm |
| 55 | micron | Length | um |
| 56 | angstrom | Length | Å |
| 57 | femtometer | Length | fm |
| 58 | nautical mile | Length | nmi |
| 59 | lumen | Light | lm |
| 60 | lux | Light | lx |
| 61 | lambert | Light | La |
| 62 | stilb | Light | sb |
| 63 | phot | Light | ph |
| 64 | langley | Light | Ly |
| 65 | gram | Mass | g |
| 66 | kilogram | Mass | kg |
| 67 | milligram | Mass | mg |
| 68 | microgram | Mass | ug |
| 69 | pound mass (avoirdupois) | Mass | lb |
| 70 | slug | Mass | slug |
| 71 | metric ton | Mass | tonne |
| 72 | grain | Mass | grain |
| 73 | carat | Mass | car |
| 74 | atomic mass unit | Mass | amu |
| 75 | short ton | Mass | ton |
| 76 | BTU per hour | Power | BTU/hr |
| 77 | foot pound force per second | Power | lbf/s |
| 78 | horse power (shaft) | Power | hp |
| 79 | kilowatt | Power | kW |
| 80 | watt | Power | W |
| 81 | voltampere | Power | VA |
| 82 | atmospheres | Pressure/Stress | atm |
| 83 | pascal | Pressure/Stress | Pa |
| 84 | inch of mercury | Pressure/Stress | inch Hg |
| 85 | inch of water | Pressure/Stress | inch H2O |
| 86 | millimeter of mercury | Pressure/Stress | mm Hg |
| 87 | millimeter of water | Pressure/Stress | mm H2O |
| 88 | centimeter of mercury | Pressure/Stress | cm Hg |
| 89 | centimeter of water | Pressure/Stress | cm H2O |
| 90 | millibar | Pressure/Stress | mbar |
| 91 | pound force per square inch | Pressure/Stress | psi |
| 92 | torr | Pressure/Stress | torr |
| 93 | barie | Pressure/Stress | barie |
| 94 | meters per pixel | Resolution | meters per pixel |
| 95 | meters per meter | Scale | - |
| 96 | degree celsius | Temperature | degC |
| 97 | degree fahrenheit | Temperature | degF |
| 98 | degree rankine | Temperature | degR |
| 99 | degree kelvin | Temperature | degK |
| 100 | second | Time | s |
| 101 | millisecond | Time | millisec |
| 102 | minute | Time | min |
| 103 | hour | Time | hr |
| 104 | day | Time | d |
| 105 | week | Time | week |
| 106 | month | Time | month |
| 107 | common year (365 days) | Time | yr |
| 108 | leap year (366 days) | Time | leap yr |
| 109 | Julian year (365.25 days) | Time | jul yr |
| 110 | Gregorian year (365.2425 days) | Time | greg yr |
| 111 | centimeters per hour | Velocity | cm/hr |
| 112 | centimeters per second | Velocity | cm/s |
| 113 | feet per second | Velocity | ft/s |
| 114 | gallons per day per square foot | Velocity | gpd/ft^2 |
| 115 | inches per hour | Velocity | in/hr |
| 116 | kilometers per hour | Velocity | km/h |
| 117 | meters per day | Velocity | m/d |
| 118 | meters per hour | Velocity | m/hr |
| 119 | meters per second | Velocity | m/s |
| 120 | miles per hour | Velocity | mph |
| 121 | millimeters per hour | Velocity | mm/hr |
| 122 | nautical mile per hour | Velocity | knot |
| 123 | acre foot | Volume | ac ft |
| 124 | cubic centimeter | Volume | cc |
| 125 | cubic foot | Volume | ft^3 |
| 126 | cubic meter | Volume | m^3 |
| 127 | hectare meter | Volume | hec m |
| 128 | liter | Volume | L |
| 129 | US gallon | Volume | gal |
| 130 | barrel | Volume | bbl |
| 131 | pint | Volume | pt |
| 132 | bushel | Volume | bu |
| 133 | teaspoon | Volume | tsp |
| 134 | tablespoon | Volume | tbsp |
| 135 | quart | Volume | qrt |
| 136 | ounce | Volume | oz |
| 137 | dimensionless | Dimensionless | - |
| 138 | mega joule | Energy | MJ |
| 139 | degrees minutes seconds | Angle | dddmmss |
| 140 | calories per square centimeter per day | Energy Flux | cal/cm^2 d |
| 141 | calories per square centimeter per minute | Energy Flux | cal/cm^2 min |
| 142 | milliliters per square centimeter per day | Hyporheic flux | ml/cm^2 d |
| 143 | micromoles per square meter per second | Areal Flux | umol/m^2 s |
| 144 | megajoules per square meter | Energy per Area | MJ/m^2 |
| 145 | gallons per day | Flow | gpd |
| 146 | million gallons per month | Flow | MGM |
| 147 | million gallons per year | Flow | MGY |
| 148 | short tons per day per foot | Mass flow per unit width | ton/d ft |
| 149 | lumens per square foot | Light Intensity | lm/ft^2 |
| 150 | microeinsteins per square meter per second | Light Intensity | uE/m^2 s |
| 151 | alphas per meter | Light | a/m |
| 152 | microeinsteins per square meter | Light | uE/m^2 |
| 153 | millimoles of photons per square meter | Light | mmol/m^2 |
| 154 | absorbance per centimeter | Extinction/Absorbance | A/cm |
| 155 | nanogram | Mass | ng |
| 156 | picogram | Mass | pg |
| 157 | milliequivalents | Mass | meq |
| 158 | grams per square meter | Areal Density | g/m^2 |
| 159 | milligrams per square meter | Areal Density | mg/m^2 |
| 160 | micrograms per square meter | Areal Density | ug/m^2 |
| 161 | grams per square meter per day | Areal Loading | g/m^2 d |
| 162 | grams per day | Loading | g/d |
| 163 | pounds per day | Loading | lb/d |
| 164 | pounds per mile | Loading | lb/mi |
| 165 | short tons per day | Loading | ton/d |
| 166 | milligrams per cubic meter per day | Productivity | mg/m^3 d |
| 167 | milligrams per square meter per day | Productivity | mg/m^2 d |
| 168 | volts | Potential Difference | V |
| 169 | millivolts | Potential Difference | mV |
| 170 | kilopascal | Pressure/Stress | kPa |
| 171 | megapascal | Pressure/Stress | MPa |
| 172 | becquerel | Radioactivity | Bq |
| 173 | becquerels per gram | Radioactivity | Bq/g |
| 174 | curie | Radioactivity | Ci |
| 175 | picocurie | Radioactivity | pCi |
| 176 | ohm | Resistance | ohm |
| 177 | ohm meter | Resistivity | ohm m |
| 178 | picocuries per gram | Specific Activity | pCi/g |
| 179 | picocuries per liter | Specific Activity | pCi/L |
| 180 | picocuries per milliliter | Specific Activity | pCi/ml |
| 181 | hour minute | Time | hhmm |
| 182 | year month day | Time | yymmdd |
| 183 | year day (Julian) | Time | yyddd |
| 184 | inches per day | Velocity | in/d |
| 185 | inches per week | Velocity | in/week |
| 186 | inches per storm | Precipitation | in/storm |
| 187 | thousand acre feet | Volume | 10^3 ac ft |
| 188 | milliliter | Volume | ml |
| 189 | cubic feet per second days | Volume | cfs d |
| 190 | thousand gallons | Volume | 10^3 gal |
| 191 | million gallons | Volume | 10^6 gal |
| 192 | microsiemens per centimeter | Electrical Conductivity | uS/cm |
| 193 | practical salinity units | Salinity | psu |
| 194 | decibel | Sound | dB |
| 195 | cubic centimeters per gram | Specific Volume | cm^3/g |
| 196 | square meters per gram | Specific Surface Area | m^2/g |
| 197 | short tons per acre foot | Concentration | ton/ac ft |
| 198 | grams per cubic centimeter | Concentration | g/cm^3 |
| 199 | milligrams per liter | Concentration | mg/L |
| 200 | nanograms per cubic meter | Concentration | ng/m^3 |
| 201 | nanograms per liter | Concentration | ng/L |
| 202 | grams per liter | Concentration | g/L |
| 203 | micrograms per cubic meter | Concentration | ug/m^3 |
| 204 | micrograms per liter | Concentration | ug/L |
| 205 | parts per million | Concentration | ppm |
| 206 | parts per billion | Concentration | ppb |
| 207 | parts per trillion | Concentration | ppt |
| 208 | parts per quintillion | Concentration | ppqt |
| 209 | parts per quadrillion | Concentration | ppq |
| 210 | per mille | Concentration | ‰ |
| 211 | microequivalents per liter | Concentration | ueq/L |
| 212 | milliequivalents per liter | Concentration | meq/L |
| 213 | milliequivalents per 100 gram | Concentration | meq/100 g |
| 214 | milliosmols per kilogram | Concentration | mOsm/kg |
| 215 | nanomoles per liter | Concentration | nmol/L |
| 216 | picograms per cubic meter | Concentration | pg/m^3 |
| 217 | picograms per liter | Concentration | pg/L |
| 218 | picograms per milliliter | Concentration | pg/ml |
| 219 | tritium units | Concentration | TU |
| 220 | jackson turbidity units | Turbidity | JTU |
| 221 | nephelometric turbidity units | Turbidity | NTU |
| 222 | nephelometric turbidity multibeam unit | Turbidity | NTMU |
| 223 | nephelometric turbidity ratio unit | Turbidity | NTRU |
| 224 | formazin nephelometric multibeam unit | Turbidity | FNMU |
| 225 | formazin nephelometric ratio unit | Turbidity | FNRU |
| 226 | formazin nephelometric unit | Turbidity | FNU |
| 227 | formazin attenuation unit | Turbidity | FAU |
| 228 | formazin backscatter unit | Turbidity | FBU |
| 229 | backscatter units | Turbidity | BU |
| 230 | attenuation units | Turbidity | AU |
| 231 | platinum cobalt units | Color | PCU |
| 232 | the ratio between UV absorbance at 254 nm and DOC level | Specific UV Absorbance | L/(mg DOC/cm) |
| 233 | billion colonies per day | Organism Loading | 10^9 colonies/d |
| 234 | number of organisms per square meter | Organism Concentration | #/m^2 |
| 235 | number of organisms per liter | Organism Concentration | #/L |
| 236 | number or organisms per cubic meter | Organism Concentration | #/m^3 |
| 237 | cells per milliliter | Organism Concentration | cells/ml |
| 238 | cells per square millimeter | Organism Concentration | cells/mm^2 |
| 239 | colonies per 100 milliliters | Organism Concentration | colonies/100 ml |
| 240 | colonies per milliliter | Organism Concentration | colonies/ml |
| 241 | colonies per gram | Organism Concentration | colonies/g |
| 242 | colony forming units per milliliter | Organism Concentration | CFU/ml |
| 243 | cysts per 10 liters | Organism Concentration | cysts/10 L |
| 244 | cysts per 100 liters | Organism Concentration | cysts/100 L |
| 245 | oocysts per 10 liters | Organism Concentration | oocysts/10 L |
| 246 | oocysts per 100 liters | Organism Concentration | oocysts/100 L |
| 247 | most probable number | Organism Concentration | MPN |
| 248 | most probable number per 100 liters | Organism Concentration | MPN/100 L |
| 249 | most probable number per 100 milliliters | Organism Concentration | MPN/100 ml |
| 250 | most probable number per gram | Organism Concentration | MPN/g |
| 251 | plaque-forming units per 100 liters | Organism Concentration | PFU/100 L |
| 252 | plaques per 100 milliliters | Organism Concentration | plaques/100 ml |
| 253 | counts per second | Rate | #/s |
| 254 | per day | Rate | 1/d |
| 255 | nanograms per square meter per hour | Volatilization Rate | ng/m^2 hr |
| 256 | nanograms per square meter per week | Volatilization Rate | ng/m^2 week |
| 257 | count | Dimensionless | # |
| 258 | categorical | Dimensionless | code |
| 259 | absorbance per centimeter per mg/L of given acid | Absorbance | 100/cm mg/L |
| 260 | per liter | Concentration Ratio | 1/L |
| 261 | per mille per hour | Sedimentation Rate | ‰/hr |
| 262 | gallons per batch | Flow | gpb |
| 263 | cubic feet per barrel | Concentration | ft^3/bbl |
| 264 | per mille by volume | Concentration | ‰ by vol |
| 265 | per mille per hour by volume | Sedimentation Rate | ‰/hr by vol |
| 266 | micromoles | Amount | umol |
| 267 | tons of calcium carbonate per kiloton | Net Neutralization Potential | tCaCO3/Kt |
| 268 | siemens per meter | Electrical Conductivity | S/m |
| 269 | millisiemens per centimeter | Electrical Conductivity | mS/cm |
| 270 | siemens per centimeter | Electrical Conductivity | S/cm |
| 271 | practical salinity scale | Salinity | pss |
| 272 | per meter | Light Extinction | 1/m |
| 273 | normal | Normality | N |
| 274 | nanomoles per kilogram | Concentration | nmol/kg |
| 275 | millimoles per kilogram | Concentration | mmol/kg |
| 276 | millimoles per square meter per hour | Areal Flux | mmol/m^2 hr |
| 277 | milligrams per cubic meter per hour | Productivity | mg/m^3 hr |
| 278 | milligrams per day | Loading | mg/d |
| 279 | liters per minute | Flow | L/min |
| 280 | liters per day | Flow | L/d |
| 281 | jackson candle units | Turbidity | JCU |
| 282 | grains per gallon | Concentration | gpg |
| 283 | gallons per second | Flow | gps |
| 284 | gallons per hour | Flow | gph |
| 285 | foot candle | Illuminance | ftc |
| 286 | fibers per liter | Concentration | fibers/L |
| 287 | drips per minute | Flow | drips/min |
| 288 | cubic centimeters per second | Flow | cm^3/sec |
| 289 | colony forming units | Organism Concentration | CFU |
| 290 | colony forming units per 100 milliliter | Organism Concentration | CFU/100 ml |
| 291 | cubic feet per minute | Flow | cfm |
| 292 | ADMI color unit | Color | ADMI |
| 293 | percent by volume | Concentration | % by vol |
| 294 | number of organisms per 500 milliliter | Organism Concentration | #/500 ml |
| 295 | number of organisms per 100 gallon | Organism Concentration | #/100 gal |
| 296 | grams per cubic meter per hour | Productivity | g/m^3 hr |
| 297 | grams per minute | Loading | g/min |
| 298 | grams per second | Loading | g/s |
| 299 | million cubic feet | Volume | 10^6 ft^3 |
| 300 | month year | Time | mmyy |
| 301 | bar | Pressure | bar |
| 302 | decisiemens per centimeter | Electrical Conductivity | dS/cm |
| 303 | micromoles per liter | Concentration | umol/L |
| 304 | Joules per square centimeter | Energy per Area | J/cm^2 |
| 305 | millimeters per day | velocity | mm/day |
| 306 | parts per thousand | Concentration | ppth |
| 307 | megaliter | Volume | ML |
| 308 | Percent Saturation | Concentration | % Sat |
| 309 | pH Unit | Dimensionless | pH |
| 310 | millimeters per second | Velocity | mm/s |
| 311 | liters per hour | Flow | L/hr |
| 312 | cubic hecto meter | Volume | (hm)^3 |
| 313 | mols per cubic meter | Concentration or organism concentration | mol/m^3 |
| 314 | kilograms per month | Loading | kg/month |
| 315 | hectopascal | Pressure/Stress | hPa |
| 316 | kilograms per cubic meter | Concentration | kg/m^3 |
| 317 | short tons per month | Loading | ton/month |
| 318 | grams per square meter per hour | Areal Flux | g/m^2 hr |
| 319 | milligrams per cubic meter | Concentration | mg/m^3 |
| 320 | meters squared per second squared | Velocity | m^2/s^2 |
| 321 | squared degree Celsius | Temperature | (DegC)^2 |
| 322 | milligrams per cubic meter squared | Concentration | (mg/m^3)^2 |
| 323 | meters per second degree Celsius | Temperature | m/s DegC |
| 324 | millimoles per square meter per second | Areal Flux | mmol/m^2 s |
| 325 | degree Celsius millimoles per cubic meter | Concentration | DegC mmol/m^3 |
| 326 | millimoles per cubic meter | Concentration | mmol/m^3 |
| 327 | millimoles per cubic meter squared | Concentration | (mmol/m^3)^2 |
| 328 | Langleys per hour | Energy Flux | Ly/hr |
| 329 | hits per square centimeter | Precipitation | hits/cm^2 |
| 330 | hits per square centimeter per hour | Velocity | hits/cm^2 hr |
| 331 | relative fluorescence units | Fluorescence | RFU |
| 332 | kilograms per hectare per day | Areal Flux | kg/ha d |
| 333 | kilowatts per square meter | Energy Flux | kW/m^2 |
| 334 | kilograms per square meter | Areal Density | kg/m^2 |
| 335 | microeinsteins per square meter per day | Light Intensity | uE/m^2 d |
| 336 | microgram per milliliter | Concentration | ug/mL |
| 337 | Newton per square meter | Pressure/Stress | Newton/m^2 |
| 338 | micromoles per liter per hour | Pressure/Stress | umol/L hr |
| 339 | decisiemens per meter | Electrical Conductivity | dS/m |
| 340 | milligrams per kilogram | Mass Fraction | mg/Kg |
| 342 | number of organisms per 100 milliliter | Organism Concentration | #/100 mL |
| 343 | micrograms per kilogram | Mass Fraction | ug/Kg |
| 344 | grams per kilogram | Mass Fraction | g/Kg |
| 345 | acre feet per month | Flow | ac ft/mo |
| 347 | acre feet per half month | Flow | ac ft/0.5 mo |
| 348 | cubic meters per minute | Flow | m^3/min |
| 349 | count per half cubic foot | Concentration | #/((ft^3)/2) |
| 350 | micrograms per gram | Mass Fraction | ug/g |
| 351 | nanograms per gram | Mass Fraction | ng/g |
| 352 | milliliters per gram | Specific Volume | ml/g |
| 353 | grams per 0.1 square meter | Areal Density | g/0.1 m^2 |
| 354 | number of organisms per 0.1 square meter | Organism Concentration | #/0.1 m^2 |
| 355 | number of organisms per 1000 square meter | Organism Concentration | #/1000 m^2 |
| 356 | kilograms per 1000 square meter | Areal Density | kg/1000 m^2 |
| 357 | microgram meter per liter | Length Integrated Concentration | ug m/L |
| 358 | milligrams per milliliter | Concentration | mg/mL |
| 359 | superoxide dismutase units per minute per milligram | Normalized Flux | U/min mg |
| 360 | picomoles per minute per milligram | Normalized Flux | pmol/min mg |
| 361 | nanomoles per minute per milligram | Normalized Flux | nmol/min mg |
| 362 | PCR cycle | Dimensionless | - |
| 363 | nanograms per milliliter | Concentration | ng/mL |
| 365 | gallons per month | Flow | gpm |
| 366 | gallons per year | Flow | gpy |
| 367 | Kilogram per cubic meter | Density | kg/m^3 |
| 368 | grams per milliliter | Density | g/mL |
| 369 | meter of water | Pressure/Stress | m H2O |
| 370 | millimolar | Concentration | mM |
| 372 | mole percent | Concentration | mol % |
| 373 | milliequivalents per kilogram | Concentration | meq/kg |
| 374 | kilogram per square meter per second | Areal Flux | kg/m^2/s |
| 376 | joules per square meter | Energy Per Area | J/m^2 |
| 378 | Amperes | Energy | A |
| 379 | centimoles per kilogram | Concentration | cmol/kg |
| 380 | kilograms per hectare | Areal Density | kg/ha |
| 381 | cubic meter per cubic meter | Concentration | m3/m3 |
| 382 | micromoles per mole | Concentration | umol/mol |
| 383 | millimoles per mole | Concentration | mmol/mol |
| 384 | milligrams per square meter per second | Areal Flux | mg/m2 s |
| 385 | decibar | Pressure | dbar |
| 386 | milliliters per liter | Concentration | mL/L |
| 387 | millimoles per square meter per day | Areal Flux | mmol/m^2 d |
| 388 | micromoles per kilogram | Concentration | umol/kg |
| 389 | Luminous Flux | Energy | LUX |
| 390 | mole per mole | Concentration | mol/mol |
| 393 | cubic meters per cubic meters | Concentration | m^3/m^3 |
| 394 | acre feet | Volume | ac ft |
| 395 | Percent Lower Explosive Limit | Flammability Lower Explosive Limit | Percent LEL |
| 396 | Milliamperes | Energy | mA |
| 398 | kiloJoule | Energy | kJ |
| 399 | millibecquerels per gram | Radioactivity | mBq/g |
| 400 | millibecquerels per square centimeter | Radioactivity | mBq/cm^2 |
| 401 | Boolean | Dimensionless | - |
| 402 | milligram per square meter per hour | Areal Flux | mg/m^2 h |
| 403 | micrograms per square meter per hour | Areal Flux | µg/m^2 h |
