7 Feb 2019
| Abbreviation | Description |
|---|---|
| Alk | Alkalinity (essentially HCO3) |
| BOD | Biological oxygen demand |
| BV | Bed volume (1 BV = 1 m3 water per m3 resin) |
| BV/h = h–1 | Specific flow rate or space velocity (1 BV/h = 1 m3 water per m3 resin per hour) |
| CFR | Co-flow ("co-current") regeneration |
| COD | Chemical oxygen demand (oxidisable organics) |
| CPP | Condensate polishing plants |
| DI | De-ionisation |
| DM | Demineralisation (is the same as DI) |
| DVB | Divinylbenzene (cross-linker) |
| EMA | Equivalent mineral acidity (= Cl + SO4 + NO3 in raw water) |
| eq | Equivalent (= mole divided by valency) eq/L is a unit of ion exchange capacity, meq/L is a unit of ionic concentration |
| FB | Free base (regenerated) form of a WBA resin |
| FMA | Free mineral acidity (= Cl + SO4 + NO3 after cation exchange) |
| HFCS | High fructose corn syrup |
| IWT | Industrrial water treatment |
| IX | Ion exchange |
| kPa | Kilopascal (unit of pressure = 0.01 bar) |
| MB | Mixed bed |
| meq | Milliequivalent (see eq) |
| MΩ·cm | Megohm-cm (electrical resistivity) |
| MHC | Moisture holding capacity (moisture content) |
| ppb | Part per billion (10–9 = µg/kg or µg/L or mg/m3) (very dilute solutions) |
| ppm | Part per million (10–6 = mg/kg or mg/L or g/m3) (in dilute solutions) |
| ppt | Part per trillion (10–12 = ng/kg or ng/L or µg/m3) (extremely dilute solutions) |
| RFR | Reverse flow (counterflow or "counter-current") regeneration |
| RO | Reverse osmosis |
| SAC | Strong acid cation [resin] |
| SBA | Strong base anion [resin] |
| TDS | Total dissolved solids |
| TH | Total hardness (alkaline earth metals) |
| TOC | Total organic carbon |
| UC | Uniformity coefficient (see resin properties) |
| UPW | Ultrapure water (semiconductor industry) |
| WAC | Weak acid cation [resin] |
| WBA | Weak base anion [resin] |
| µS/cm | MicroSiemens per centimetre (electrical conductivity) |
See also units of concentration and capacity.
© François de Dardel