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1.1 In a broad sense, this terminology covers terminology associated with liquid particles dispersed in gas. The principal emphasis, however, is on particles produced by the process of atomization.
1.2 All terms, followed by their definitions, are arranged alphabetically. In addition, the terminology contains several tables wherein terms related to specific subjects are segregated and identified.
1.3 Within the broad scope, the following specific categories are included:
1.3.1 Terms pertaining to the structure and condition of individual particles or groups of particles as observed in nature.
1.3.2 Terms pertaining to the structure and condition of individual particles or groups of particles produced by an atomizing device.
1.3.3 Terms pertaining to atomizing devices according to the primary energy source responsible for spray development. (When more than one term is used for the same device or class of devices, the alternative term is followed by the preferred term.) Definitions of the devices may refer to their construction, operating principle, or distinctive spray characteristics. The atomizers, however, are not classified by their respective areas of application or end use. Moreover, the listed terms are generic and do not include brand names, trademarks, or proprietary designations.
1.3.4 Terms pertaining to statistical parameters involving particle measurement, particle size, and size distribution functions.
1.3.5 Terms pertaining to instruments and test procedures utilized in the characterization of liquid particles and sprays.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
TABLE 1 Summary of Atomizer Terms
|Pressure Atomizer (hydraulic atomizer, pressure atomizing nozzle,||Lubbock nozzle|
|pressure nozzle, single-fluid atomizer)||variable orifice poppet nozzle (variable orifice pintle nozzle)|
|cone atomizer (cone spray nozzle)|
|hollow cone atomizer||Pneumatic Atomizer (air atomizing nozzle, blast nozzle, gas atomizer, gas-|
|solid cone atomizer (full cone nozzle)||liquid nozzle, twin-fluid atomizer, two-fluid atomizer)|
|deflector atomizer (flood nozzle, flooding nozzle)||air assist nozzle|
|dual orifice nozzle (duple nozzle)||airblast nozzle (air blast nozzle,|
|duplex nozzle||aerating nozzle)|
|piloted airblast nozzle (simplex airblast nozzle)|
|Fan Spray Atomizer:||prefilming airblast nozzle|
|even spray atomizer (even flow atomizer)|
|flat spray atomizer (flat jet atomizer)||External Mixing Pneumatic Atomizer|
|Internal Mixing Pneumatic Atomizer|
|Impact Atomizer: (impingement atomizer):||(aerating nozzle,|
|pintle atomizer||Nukiyama-Tanasawa nozzle,|
|splash cup atomizer||effervescent atomizer)|
|splash plate atomizer|
|Centrifugal Atomizer (rotary atomizer, slinger)|
|Impinging Jet Atomizer (impingement atomizer):||rotary cup atomizer (spinning cup atomizer)|
|doublet atomizer||rotary disk atomizer (spinning disk atomizer)|
|triplet atomizer||rotary wheel atomizer|
|Plain Jet Atomizer (orifice atomizer, plain orifice atomizer, single jet atomizer,||Vibratory Atomizer (vibrative atomizer)|
|straight stream nozzle)||electromagnetic vibratory atomizer|
|simplex nozzle||piezoelectric vibratory atomizer|
|Square Spray Nozzle||Berglund-Liu atomizer|
|Swirl Atomizer||ultrasonic nozzle|
|Swirl Chamber Atomizer (centrifugal pressure nozzle, swirl chamber||vibrating needle atomizer|
|atomizer)||vibrating reed atomizer|
|by-pass nozzle (bypass nozzle, flowback nozzle, recirculating nozzle, return|
|flow nozzle, spill nozzle, spill return nozzle, spillback nozzle)||Electrostatic Atomizer|
|dual orifice nozzle (duplex nozzle)|
|duplex nozzle||Shear Coaxial Injector|
|simplex nozzle||swirl coaxial injector|
|Siphon Nozzle (aspirating nozzle)|
|Sonic Nozzle (sonic-whistle atomizer, ultrasonic nozzle)|
|Area (surface) Mean Diameter|
|DNf, DLf, DAf, DVf|
|De Brouckere Diameter|
|Equivalent Volume Sphere Diameter|
|Linear (arithmetic) Mean Diameter|
|Log Normal Distribution|
|Sauter Mean Diameter|
|Square Root Normal Distribution|
|Upper Limit Log Normal Distribution|
|Volume Mean Diameter|
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1356 Terminology Relating to Sampling and Analysis of Atmospheres
E799 Practice for Determining Data Criteria and Processing for Liquid Drop Size Analysis
ICS Number Code 01.040.07 (Mathematics. Natural sciences (Vocabularies)); 07.030 (Physics. Chemistry)
ASTM E1620-97(2012), Standard Terminology Relating to Liquid Particles and Atomization , ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top