This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Standard litre per minute" – news · newspapers · books · scholar · JSTOR(May 2018) (Learn how and when to remove this message)
The standard liter per minute (SLM or SLPM) is a unit of (molar or) mass flow rate of a gas at standard conditions for temperature and pressure (STP), which is most commonly practiced in the United States, whereas European practice revolves around the normal litre per minute (NLPM).[1] Until 1982, STP was defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of 101.325 kPa (1 atm). Since 1982, STP is defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of 100 kPa (1 bar).
Conversions between each volume flow metric are calculated using the following formulas:
Prior to 1982,
Post 1982,
[citation needed][2]
assuming zero degree Celsius reference point for STP when using SLPM, which differs from the "room" temperature reference for the NLPM standard. These methods are used due to differences in environmental temperatures and pressures during data collection.
In the SI system of units, the preferred unit for volumetric flow rate is cubic meter per second, equivalent to 60,000 liters per minute. If the gas is to be considered as an ideal gas, then SLPM can be expressed as mole per second using the molar gas constant = 8.314510 J⋅K−1⋅mol−1: mol/s.
^Picas, J. A., Punset, M., Baile, M. T., Martín, E., & Forn, A. (2011). Effect of oxygen/fuel ratio on the in-flight particle parameters and properties of HVOF WC-CoCr coatings. Surface and Coatings Technology, 205, S364–S368.
^"STP – Standard Temperature and Pressure & NTP - Normal Temperature and Pressure". www.engineeringtoolbox.com.
and 21 Related for: Standard litre per minute information
United States, whereas European practice revolves around the normal litreperminute (NLPM). Until 1982, STP was defined as a temperature of 273.15 K (0 °C...
Standard cubic centimeters perminute (SCCM) is a unit used to quantify the flow rate of a fluid. 1 SCCM is identical to 1 cm³STP/min. Another expression...
Archived on June 2, 2018. Standardlitreperminute Conversion of units Volumetric flow rate Volumetric flux Cusec, shorthand for cubic feet per second...
making metal parts Spatial light modulator in optical projection Standardlitreperminute, a unit Š-L-M (Shin-Lamedh-Mem), root of Semitic words Salamanca...
air. For example, a space requiring 5663 standardlitreperminute (SLPM) (200 standard cubic feet perminute (SCFM)) of ventilation air and served with...
economy is the distance travelled per unit volume of fuel used; for example, kilometres perlitre (km/L) or miles per gallon (MPG), where 1 MPG (imperial)...
versions are in current use: the imperial gallon (imp gal), defined as 4.54609 litres, which is or was used in the United Kingdom, Ireland, Canada, Australia...
The litre (British English spelling) or liter (American English spelling) (SI symbols L and l, other symbol used: ℓ) is a metric unit of volume. It is...
at 8–10 MPa (80–100 bar; 1,200–1,500 psi) and a flow rate of 14–16 litresperminute (3.7–4.2 US gal/min). The nozzle is held 10–15 cm from the tested...
volume by 20%. Tidal volume increases by 30–40%, from 0.5 to 0.7 litres, and minute ventilation by 30–40% giving an increase in pulmonary ventilation...
900 revolutions perminute (rpm) and 350 newton-metres (258 lbf⋅ft) of torque 1,950 rpm. This powerplant made it rather powerful by contemporary standards, and the...
behind the abbreviation. At 202.8 hp (151.2 kW) perlitre, it has one of the highest specific outputs perlitre of any road car engine.[citation needed] With...
able to pump 150 US gallons perminute (9.5 litresper second; 120 imperial gallons perminute) at a pressure of 250 pounds per square inch (1,700 kPa)....
cylinders contained a total of 960 litres of oxygen, which would last for eight hours at the standard rate of 2 litresperminute or seven hours at 2.2 L/min...
the lock assembly used and averages 500 rounds perminute for the Schloss 08 and 600 rounds perminute for the Schloss 16. Additional telescopic sights...
800 revolutions perminute (rpm), and generated a torque turning force of 340 newton-metres (251 lbf⋅ft) at 4,000 rpm. In August 1991, Audi introduced a 4.2-litre engine...
500 litres (2,000 US gal) perminute or more. A master stream is a fire service term for a water stream of 1,250 litres (330 US gal) perminute or greater...
was confirmed: Class A: Australian-produced 5.0-litre V8-engined Fords and Holdens Class B: 2.0-litre cars complying with FIA Class II Touring Car regulations...