Measurement methods. 1.1. When photometric measurements are taken, stray reflections shall be avoided by appropriate masking.
Measurement methods. 4.8.2.1. The photometric performance shall be checked in accordance with the relevant sub-paragraph of paragraph 4.7.
Measurement methods. Any method may be used to measure variations of inclination provided that the readings are accurate to within ± 0.2 mrad (± 0.02 per cent inclination).
Measurement methods. Participation (being present AND use of ASL) ASL Notebook Assignments Quizzes and Exit Tickets Project / Presentation / Essay Tests Final Exam Textbooks or Other Support Materials: Signing Naturally Unit 7 - 12, 2014, Xxxxx Xxxxx, Xxxx Xxx Xxxxx, and Xxx Xxxxx
Measurement methods. Hypothesis 2.1 Single Particle Mass Spectrometers can be used to obtain the full number and mass composition distributions of ambient aerosols.
Measurement methods. 5.6.4.1. Measuring points expressed in degrees of angle with the axis of reference are shown in Figure A4-XI.
Measurement methods a. A meeting invitation letter for each meeting to include a mailing list (can be an email copy).
Measurement methods. A wide range of tools, techniques, metrics and assessment approaches that qualify or quantify the Function-Based Parameters. Each measurement method is assigned a category for Type, Level of Effort, Level of Complexity, and whether it is a Direct or Indirect measure. Refer to Chapter 4 and Appendix Ac for a comprehensive list of the measurement methods and their assigned categories.
Measurement methods. The average FRM–measured PM2.5 concentration in Pittsburgh is on average 10% greater than the sum of the mass of the aerosol chemical components. The most significant discrepancies were observed during the summer. This discrepancy is mainly due to water retention on the FRM filters and can be corrected with the use of thermodynamic models. Accounting for the effects of water and volatilization losses closes the mass balance between the FRM and the sum of the PM2.5 chemical components (Xxxx et al., 2004). [HYPOTHESIS 1.1] • A semi-continuous OC/EC analyzer (Sunset) was operated successfully for 13 months during PAQS by both the Xxxxxx group and CMU personnel (Xxxxxxxx et al., 2005). [HYPOTHESIS 2.2] • The nitrate and sulfate concentrations measured by the R&P nitrate (model 8400 N) and sulfate (model 8400S) after standard instrument calibration had reasonably high correlations (R2 about 0.85) with the filter-based methods. However, the sulfate and nitrate concentrations measured by the continuous instruments were low by 17% and 29% respectively. A final calibration step using filter-based measurements was recommended for these instruments (Xxxxxx et al., 2004b). [HYPOTHESIS 2.2] • An automatic method for the semi-continuous measurement of the aerosol water content, the Dry Ambient Aerosol Size Spectrometer (DAASS) was developed and used continuously for a year (Stanier et al., 2004b). [HYPOTHESIS 1.1] • The organic aerosol in Western Pennsylvania is aged and as a result the negative artifact in quartz filters was found to be small (typically less than 10% of the OC). The use of a backup quartz filter behind the front quartz filter provided a better estimate of daily average OC positive artifact than the use of a quartz backup filter behind a Teflon filter (Xxxxxxxxxxx et al., 2004). • A simple algorithm was developed to combine aerosol size distribution data measured with commercially available scanning mobility particle sizers and an aerodynamic particle sizer to produce the complete aerosol size distribution from 3 nanometers to 10 micrometers (Khlystov et al., 2004). • The Versatile Aerosol Concentration Enrichment System (VACES) was tested during measurements of ambient aerosol in Pittsburgh. It was found that the shape of the sulfate distribution was preserved during passage through the concentrator with a mass enhancement factor of 10-20. The size distributions of organics, ammonium and nitrate were preserved in relatively clean days while artifacts s...
Measurement methods a. Quarterly, submit a list of Annex or ESF training activities to the Oklahoma Department of Emergency Management.
