Physical parameters play an essential role for dispensing with air-cushion pipettes. Results of analysis are directly impacted by the density of the pipetted
significantly influenced by environmental parameters. (relative humidity room temperature
dispensed with a minimal air cushion [1]. In this way the physical properties of the liquid have very little influence on the volume of the liquid to be
[3] Ewald K. Influence of physical parameters on the dispensed volume of air-cushion pipette. Eppendorf Userguide 21. www.eppendorf.com. Conclusion.
Physical influences on dispensing volume . More information: Influence of physical parameters on the dispensed volume of the air-cushion pipette.
is accepted by the authorities since the physical properties of influenced by a combination of many factors. ... on the dispensed volumes.
liquids whose physical properties differ from those of [3] Ewald K (2007): Physical influences on the dispensed volume with air-cushion pipettes.
air volume the volume moved by the piston is approx. 2% to 4% greater than the aspirated of positive displacement are subject to physical influences.
is no air cushion; therefore the physical properties of the liquid have very little influence on the volume of the liquid to be aspirated or dispensed.
Air-cushion pipettes. Positive displacement dispenser physical properties of water. > Optimally suitable for ... air-cushion. > Dispensed volume too.
Influence of physical parameters on the dispensed volume of air-cushion pipette Kornelia Ewald Eppendorf AG Hamburg Germany Introduction Physical parameters play an essential role for dispensing with air-cushion pipettes Results of analysis are directly impacted by the density of the pipetted liquid
Physical parameters play an essential role for dispensing with air-cushion pipettes Results of analysis are directly impacted by the density of the pipetted liquid Also parameters like vapor pressure viscosity and in particular temperature differences have to be regarded as well Density mg/ml
-Pressure-Control
Calculation methods for the physical properties of air used in the calibration of microphones A proposal for a unified calculation procedure to be used among European metrology laboratories by Knud Rasmussen Original version November 1995 First revision April 1996 Second revision May 1997 DEPARTMENT OF ACOUSTIC TECHNOLOGY
volume operations The basic assembly comprises a cartridge which is held in a cartridge retainer Capacities: 74ml 177ml 237ml 325ml 355ml 591ml You can dispense from 310ml cartridges containing sealants silicones and adhesives using a 310ml cartridge retainer (shown) Dispensing consumables 13
Dispensing technique plays a major role when a pre-specified volume of adhesive material or sealant has to be applied on a certain substrate It is important for a variety of reasons such as to achieve higher bonding quality lower cycle times improved accuracy and lower material consumption
3 Method for Dispense Volume Correction (Variable Duration Fixed Flow Rate) 3 1 Description of Correction Method Once the sensor’s suitability for the desired medium and flow rate setpoint has been verified according to section 1 the sensor’s volume output may be corrected to give the true dispensed volume In the case that the
Physical activity was assessed with International Physical Activity Questionnaire (IPAQ) – Long Form Three levels of physical activity were established according to IPAQ Scoring Protocol guidelines: low moderate and high [8] Statistical analysis was performed using IBM SPSS Statistics (version 20 0) Group
nV(D) dD = the volume of particles per cm3 of air having diameters in the range D and D + dD (here dD is an infinitesimally small increase in diameter) and therefore nV(D) = D3 nN(D) /6 Here nV(D) is in m2cm-3 Thus the total aerosol volume V per cm3 of air is = D3 nN(D) dD =nV(D) dD Here V is in m3 cm-3