Useful information
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Classification of pollutantsFilter standards
Particle sizes
Settling time of particles
Conversion table
Laser machining
Unit converter
| Speed | |||
| Kilometers per hour (km/h) | Meters per second (m/s) | ||
| Miles per hour (mph, mi/h) | Feet per minute (ft/min) | ||
| Knots (kts) | Mach (speed of sound) | ||
| Length | |||
| Millimeter (mm) | Centimeter (cm) | ||
| Meter (m) | Kilometer (km) | ||
| Inch | Foot | ||
| Yard (yd) | Mile | ||
| Fathom (fa) | Rod (rd) | ||
| Chain (ch) | Furlong (fur) | ||
| Volume | |||
| Cubic centimeter (cm³) | Cubic decimeter (dm³) | ||
| Hectoliter (hl) | Cubic meter (m³) | ||
| Cubic kilometer (km³) | Cubic inch | ||
| Cubic foot | Cubic yard | ||
| Cubic mile | UK pint | ||
| UK quart | Gallone US | ||
| Gallone UK | |||
| Surface | |||
| Square centimeter (cm²) | Square meter (m²) | ||
| Are (a) | Hectare (ha) | ||
| Square kilometer (km²) | Square inch | ||
| Square feet | Square yards | ||
| Acre | Square mile | ||
| Air flow | |||
| Cubic feet per minute (cfm) | Square meter per second (m³/s) | ||
| Square meter per minute (m³/m) | Square meter per hour (m³/h) | ||
| Pressure | |||
| Pascal (Pa) | Bar (bar) | ||
| Atmosphere (atm) | Torr | ||
| Pounds per suare inch (psi, lb/sq in) | |||
| Millibar (mbar) = Hectopascal (hPa)) | |||
| Kilogram force per square meter(kgf/m²) | |||