> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gobl.org/llms.txt
> Use this file to discover all available pages before exploring further.
# Unit
Unit defines how the quantity of the product should be interpreted either using a GOBL lower-case key (e.g. 'kg'), or UN/ECE code upper-case code (e.g. 'KGM').
## Schema ID
`https://gobl.org/draft-0/org/unit`
## Values
| Value | Title | Description |
| ------------ | ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------- |
| `mg` | Milligrams | |
| `g` | Metric grams | |
| `kg` | Metric kilograms | |
| `t` | Metric tons | |
| `mm` | Milimetres | |
| `cm` | Centimetres | |
| `dm` | Decimetres | A unit of length equal to one-tenth of a metre. |
| `m` | Metres | |
| `km` | Kilometers | |
| `in` | Inches | |
| `ft` | Feet | |
| `mm2` | Square millimetres | |
| `cm2` | Square centimetres | |
| `dm2` | Square decimetres | |
| `m2` | Square metres | |
| `ac` | Acres | A unit of area equal to 43,560 square feet. |
| `ha` | Hectares | A unit of area equal to 10,000 square metres. |
| `mm3` | Cubic millimetres | |
| `cm3` | Cubic centimetres | |
| `dm3` | Cubic decimetres | |
| `m3` | Cubic metres | |
| `ml` | Millilitres | |
| `cl` | Centilitres | |
| `l` | Litres | |
| `w` | Watts | |
| `kw` | Kilowatts | |
| `kwh` | Kilowatt Hours | |
| `rate` | Rate | A unit of quantity expressed as a rate for usage of a facility or service. |
| `mon` | Months | Unit of time equal to 1/12 of a year of 365,25 days. |
| `day` | Days | |
| `s` | Seconds | |
| `h` | Hours | |
| `min` | Minutes | |
| `piece` | Pieces | A unit of count defining the number of pieces (piece: a single item, article or exemplar). |
| `item` | Items | A unit of count defining the number of items regarded as separate units. |
| `pair` | Pairs | A unit of count defining the number of pairs (pair: item described by two's). |
| `dozen` | Dozens | A unit of count defining the number of units in multiples of 12. |
| `assortment` | Assortments | A unit of count defining the number of assortments (assortment: a collection of items or components of a single product packaged together). |
| `service` | Service Units | A unit of count defining the number of service units (service unit: defined period / property / facility / utility of supply). |
| `job` | Jobs | A unit of count defining the number of jobs. |
| `activity` | Activities | A unit of count defining the number of activities (activity: a unit of work or action). |
| `trip` | Trips | A unit of count defining the number of trips (trip: a journey to a place and back again). |
| `group` | Groups | A unit of count defining the number of groups (group: set of items classified together). |
| `outfit` | Outfits | A unit of count defining the number of outfits (outfit: a complete set of equipment / materials / objects used for a specific purpose). |
| `kit` | Kits | A unit of count defining the number of kits (kit: tub, barrel or pail). |
| `basebox` | Base Boxes | A unit of area of 112 sheets of tin mil products (tin plate, tin free steel or black plate) 14 by 20 inches, or 31,360 square inches. |
| `pk` | Bulk Packs | A unit of count defining the number of items per bulk pack. |
| `one` | One | A single generic unit of a service or product. |
| `bag` | Bags | |
| `box` | Boxes | |
| `bin` | Bins | |
| `can` | Cans | |
| `tub` | Tubs | |
| `case` | Cases | |
| `tray` | Trays | |
| `portion` | Portions | |
| `set` | Sets | A unit of count defining the number of sets (set: a number of objects grouped together). |
| `roll` | Rolls | |
| `carton` | Cartons | |
| `cylinder` | Cylinders | |
| `barrel` | Barrels | |
| `jerrican` | Jerricans | Jerrican, cylindrical |
| `carboy` | Carboys | |
| `demijohn` | Demijohn | |
| `bottle` | Bottles | |
| `6pack` | Six Packs | |
| `canister` | Canisters | |
| `pkg` | Packages | Standard packaging unit. |
| `bunch` | Bunches | |
| `tetrabrik` | Tetra-Briks | |
| `pallet` | Pallets | |
| `reel` | Reels | |
| `sack` | Sacks | |
| `sheet` | Sheets | |
| `envelope` | Envelopes | |
| `lot` | Lot | |
| `unit` | Unit | A type of package composed of a single item or object, not otherwise specified as a unit of transport equipment. |
## Validation Rules
| Field | Test | Validation Code / Message |
| ------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------- |
| Unit | - Matches ^\[A-Z0-9]{2,3}\$, or one of \[mg, g, kg, t, mm, cm, dm, m, km, in, ft, mm2, cm2, dm2, m2, ac, ha, mm3, cm3, dm3, m3, ml, cl, l, w, kw, kwh, rate, mon, day, s, h, min, piece, item, pair, dozen, assortment, service, job, activity, trip, group, outfit, kit, basebox, pk, one, bag, box, bin, can, tub, case, tray, portion, set, roll, carton, cylinder, barrel, jerrican, carboy, demijohn, bottle, 6pack, canister, pkg, bunch, tetrabrik, pallet, reel, sack, sheet, envelope, lot, unit]
| `GOBL-ORG-UNIT-01`
Unit must be a valid value or UN/ECE code |